#include <c_microstrip.h>

Inheritance diagram for C_MICROSTRIP:

Public Member Functions
	C_MICROSTRIP ()

	~C_MICROSTRIP ()

void	setProperty (enum PRMS_ID aPrmId, double aValue)

double	getProperty (enum PRMS_ID aPrmId)

void	getProperties ()
	@function getProperties More...

void	checkProperties ()
	@function checkProperties More...

void	setResult (int, const wxString &)

void	setResult (int, double, const wxString &)

bool	isSelected (enum PRMS_ID aPrmId)

void	Init ()

virtual void	synthesize ()

virtual void	calc ()

void	analyze ()

Public Attributes
const char *	m_Name

KIGFX::COLOR4D	errCol = KIGFX::COLOR4D( 1, 0.63, 0.63, 1 )

KIGFX::COLOR4D	warnCol = KIGFX::COLOR4D( 1, 1, 0.57, 1 )

KIGFX::COLOR4D	okCol = KIGFX::COLOR4D( 1, 1, 1, 1 )

Protected Member Functions
bool	minimizeZ0Error1D (double *)
	@function minimizeZ0Error1D More...

double	skin_depth ()
	@function skin_depth calculate skin depth More...

void	ellipke (double, double &, double &)

double	ellipk (double)

void	setErrorLevel (PRMS_ID, char)
	@function setErrorLevel More...

Protected Attributes
double	m_parameters [EXTRA_PRMS_COUNT]

double	len

double	er_eff

double	ang_l

Private Member Functions
double	delta_u_thickness_single (double, double)

void	delta_u_thickness ()

void	compute_single_line ()

double	filling_factor_even (double, double, double)

double	filling_factor_odd (double, double, double)
	filling_factor_odd() - compute the filling factor for the coupled microstrips odd-mode without cover and zero conductor thickness More...

double	delta_q_cover_even (double)

double	delta_q_cover_odd (double)

void	er_eff_static ()
	er_eff_static() - compute the static effective dielectric constants More...

double	delta_Z0_even_cover (double, double, double)
	delta_Z0_even_cover() - compute the even-mode impedance correction for a homogeneous microstrip due to the cover More...

double	delta_Z0_odd_cover (double, double, double)
	delta_Z0_odd_cover() - compute the odd-mode impedance correction for a homogeneous microstrip due to the cover More...

void	Z0_even_odd ()
	Z0_even_odd() - compute the static even- and odd-mode static impedances. More...

void	er_eff_freq ()

void	conductor_losses ()

void	dielectric_losses ()

void	attenuation ()

void	line_angle ()

void	diff_impedance ()
	Note that differential impedance is exactly twice the odd mode impedance. More...

void	syn_err_fun (double , double , double, double, double, double, double)

void	synth_width ()

void	Z0_dispersion ()

void	calcAnalyze () override
	Computation for analysis. More...

void	calcSynthesize () override
	Computation for synthesis. More...

void	showAnalyze () override
	Shows synthesis results and checks for errors / warnings. More...

void	showSynthesize () override
	Shows analysis results and checks for errors / warnings. More...

void	show_results () override
	Shows results. More...

void	syn_fun (double , double , double, double, double, double)

Private Attributes
double	h

double	ht

double	t

double	rough

double	w

double	w_t_e

double	w_t_o

double	l

double	s

double	Z0_e_0

double	Z0_o_0

double	Zdiff

double	Z0e

double	Z0o

double	c_e

double	c_o

double	ang_l_e

double	ang_l_o

double	er_eff_e

double	er_eff_o

double	er_eff_e_0

double	er_eff_o_0

double	w_eff

double	atten_dielectric_e

double	atten_cond_e

double	atten_dielectric_o

double	atten_cond_o

MICROSTRIP *	aux_ms

Detailed Description

Definition at line 31 of file c_microstrip.h.

Constructor & Destructor Documentation

◆ C_MICROSTRIP()

C_MICROSTRIP::C_MICROSTRIP ( )

Definition at line 39 of file c_microstrip.cpp.

  : TRANSLINE(),
  h( 0.0 ), // height of substrate
  ht( 0.0 ), // height to the top of box
  t( 0.0 ), // thickness of top metal
  rough( 0.0 ), // Roughness of top metal
  w( 0.0 ), // width of lines
  w_t_e( 0.0 ), // even-mode thickness-corrected line width
  w_t_o( 0.0 ), // odd-mode thickness-corrected line width
  l( 0.0 ), // length of lines
  s( 0.0 ), // spacing of lines
  Z0_e_0( 0.0 ), // static even-mode impedance
  Z0_o_0( 0.0 ), // static odd-mode impedance
  Zdiff( 0.0), // differential impedance
  Z0e( 0.0 ), // even-mode impedance
  Z0o( 0.0 ), // odd-mode impedance
  c_e( 0.0 ), // even-mode capacitance
  c_o( 0.0 ), // odd-mode capacitance
  ang_l_e( 0.0 ), // even-mode electrical length in angle
  ang_l_o( 0.0 ), // odd-mode electrical length in angle
  er_eff_e( 0.0 ), // even-mode effective dielectric constant
  er_eff_o( 0.0 ), // odd-mode effective dielectric constant
  er_eff_e_0( 0.0 ), // static even-mode effective dielectric constant
  er_eff_o_0( 0.0 ), // static odd-mode effective dielectric constant
  w_eff( 0.0 ), // Effective width of line
  atten_dielectric_e( 0.0 ), // even-mode dielectric losses (dB)
  atten_cond_e( 0.0 ), // even-mode conductors losses (dB)
  atten_dielectric_o( 0.0 ), // odd-mode dielectric losses (dB)
  atten_cond_o( 0.0 ), // odd-mode conductors losses (dB)
  aux_ms( nullptr )
 {
  m_Name = "Coupled_MicroStrip";
  Init();
 }

References TRANSLINE::Init(), and TRANSLINE::m_Name.

◆ ~C_MICROSTRIP()

C_MICROSTRIP::~C_MICROSTRIP ( )

Definition at line 74 of file c_microstrip.cpp.

 {
  delete aux_ms;
 }

References aux_ms.

Member Function Documentation

◆ analyze()

void TRANSLINE::analyze ( )

inherited

Definition at line 219 of file transline.cpp.

 {
  getProperties();
  checkProperties();
  calcAnalyze();
  showAnalyze();
  show_results();
 }

References TRANSLINE::calcAnalyze(), TRANSLINE::checkProperties(), TRANSLINE::getProperties(), TRANSLINE::show_results(), and TRANSLINE::showAnalyze().

Referenced by PANEL_TRANSLINE::OnTranslineAnalyse().

◆ attenuation()

void C_MICROSTRIP::attenuation ( )

private

Definition at line 553 of file c_microstrip.cpp.

 {
  m_parameters[SKIN_DEPTH_PRM] = skin_depth();
  conductor_losses();
  dielectric_losses();
 }

References conductor_losses(), dielectric_losses(), TRANSLINE::m_parameters, TRANSLINE::skin_depth(), and SKIN_DEPTH_PRM.

Referenced by calcAnalyze().

◆ calc()

virtual void TRANSLINE::calc ( )

inlinevirtualinherited

Definition at line 97 of file transline.h.

97 {}

◆ calcAnalyze()

void C_MICROSTRIP::calcAnalyze ( )

overrideprivatevirtual

Computation for analysis.

Reimplemented from TRANSLINE.

Definition at line 797 of file c_microstrip.cpp.

 {
  /* compute thickness corrections */
  delta_u_thickness();
  /* get effective dielectric constants */
  er_eff_static();
  /* impedances for even- and odd-mode */
  Z0_even_odd();
  /* calculate freq dependence of er_eff_e, er_eff_o */
  er_eff_freq();
  /* calculate frequency dependence of Z0e, Z0o */
  Z0_dispersion();
  /* calculate losses */
  attenuation();
  /* calculate electrical lengths */
  line_angle();
  /* calculate diff impedance */
  diff_impedance();
 }

References attenuation(), delta_u_thickness(), diff_impedance(), er_eff_freq(), er_eff_static(), line_angle(), Z0_dispersion(), and Z0_even_odd().

Referenced by calcSynthesize(), and syn_fun().

◆ calcSynthesize()

void C_MICROSTRIP::calcSynthesize ( )

overrideprivatevirtual

Computation for synthesis.

Reimplemented from TRANSLINE.

Definition at line 904 of file c_microstrip.cpp.

 {
  double Z0_e, Z0_o, ang_l_dest;
  double f1, f2, ft1, ft2, j11, j12, j21, j22, d_s_h, d_w_h, err;
  double eps = 1e-04;
  double w_h, s_h, le, lo;
 
 
  /* required value of Z0_e and Z0_o */
  Z0_e = m_parameters[Z0_E_PRM];
  Z0_o = m_parameters[Z0_O_PRM];
 
 
  ang_l_e = m_parameters[ANG_L_PRM];
  ang_l_o = m_parameters[ANG_L_PRM];
  ang_l_dest = m_parameters[ANG_L_PRM];
 
 
  /* calculate width and use for initial value in Newton's method */
  synth_width();
  w_h = m_parameters[PHYS_WIDTH_PRM] / m_parameters[H_PRM];
  s_h = m_parameters[PHYS_S_PRM] / m_parameters[H_PRM];
  f1 = f2 = 0;
 
  /* rather crude Newton-Rhapson */
  do
  {
  /* compute Jacobian */
  syn_fun( &ft1, &ft2, s_h + eps, w_h, Z0_e, Z0_o );
  j11 = ( ft1 - f1 ) / eps;
  j21 = ( ft2 - f2 ) / eps;
  syn_fun( &ft1, &ft2, s_h, w_h + eps, Z0_e, Z0_o );
  j12 = ( ft1 - f1 ) / eps;
  j22 = ( ft2 - f2 ) / eps;
 
  /* compute next step; increments of s_h and w_h */
  d_s_h = ( -f1 * j22 + f2 * j12 ) / ( j11 * j22 - j21 * j12 );
  d_w_h = ( -f2 * j11 + f1 * j21 ) / ( j11 * j22 - j21 * j12 );
 
  s_h += d_s_h;
  w_h += d_w_h;
 
  /* compute the error with the new values of s_h and w_h */
  syn_fun( &f1, &f2, s_h, w_h, Z0_e, Z0_o );
  err = sqrt( f1 * f1 + f2 * f2 );
 
  /* converged ? */
  } while( err > 1e-04 );
 
  /* denormalize computed width and spacing */
  m_parameters[PHYS_S_PRM] = s_h * m_parameters[H_PRM];
  m_parameters[PHYS_WIDTH_PRM] = w_h * m_parameters[H_PRM];
 
 
  /* calculate physical length */
  le = C0 / m_parameters[FREQUENCY_PRM] / sqrt( er_eff_e ) * ang_l_dest / 2.0 / M_PI;
  lo = C0 / m_parameters[FREQUENCY_PRM] / sqrt( er_eff_o ) * ang_l_dest / 2.0 / M_PI;
  m_parameters[PHYS_LEN_PRM] = sqrt( le * lo );
 
  calcAnalyze();
 
  m_parameters[ANG_L_PRM] = ang_l_dest;
  m_parameters[Z0_E_PRM] = Z0_e;
  m_parameters[Z0_O_PRM] = Z0_o;
 }

References ang_l_e, ang_l_o, ANG_L_PRM, C0, calcAnalyze(), er_eff_e, er_eff_o, FREQUENCY_PRM, H_PRM, TRANSLINE::m_parameters, PHYS_LEN_PRM, PHYS_S_PRM, PHYS_WIDTH_PRM, syn_fun(), synth_width(), Z0_E_PRM, and Z0_O_PRM.

◆ checkProperties()

void TRANSLINE::checkProperties ( )

inherited

@function checkProperties

Checks the input parameters (ie: negative length). Does not check for incompatibility between values as this depends on the line shape.

Definition at line 177 of file transline.cpp.

 {
  // Do not check for values that are results of analyzing / synthesizing
  // Do not check for transline specific incompatibilities ( like " conductor height should be lesser than dielectric height")
  if( !std::isfinite( m_parameters[EPSILONR_PRM] ) || m_parameters[EPSILONR_PRM] <= 0 )
  setErrorLevel( EPSILONR_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[TAND_PRM] ) || m_parameters[TAND_PRM] < 0 )
  setErrorLevel( TAND_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[RHO_PRM] ) || m_parameters[RHO_PRM] < 0 )
  setErrorLevel( RHO_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[H_PRM] ) || m_parameters[H_PRM] < 0 )
  setErrorLevel( H_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[TWISTEDPAIR_TWIST_PRM] )
  || m_parameters[TWISTEDPAIR_TWIST_PRM] < 0 )
  setErrorLevel( TWISTEDPAIR_TWIST_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[STRIPLINE_A_PRM] ) || m_parameters[STRIPLINE_A_PRM] <= 0 )
  setErrorLevel( STRIPLINE_A_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[H_T_PRM] ) || m_parameters[H_T_PRM] <= 0 )
  setErrorLevel( H_T_PRM, TRANSLINE_WARNING );
 
  // How can we check ROUGH_PRM ?
 
  if( !std::isfinite( m_parameters[MUR_PRM] ) || m_parameters[MUR_PRM] < 0 )
  setErrorLevel( MUR_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[TWISTEDPAIR_EPSILONR_ENV_PRM] )
  || m_parameters[TWISTEDPAIR_EPSILONR_ENV_PRM] <= 0 )
  setErrorLevel( TWISTEDPAIR_EPSILONR_ENV_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[MURC_PRM] ) || m_parameters[MURC_PRM] < 0 )
  setErrorLevel( MURC_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[FREQUENCY_PRM] ) || m_parameters[FREQUENCY_PRM] <= 0 )
  setErrorLevel( FREQUENCY_PRM, TRANSLINE_WARNING );
 }

References EPSILONR_PRM, FREQUENCY_PRM, H_PRM, H_T_PRM, TRANSLINE::m_parameters, MUR_PRM, MURC_PRM, RHO_PRM, TRANSLINE::setErrorLevel(), STRIPLINE_A_PRM, TAND_PRM, TRANSLINE_WARNING, TWISTEDPAIR_EPSILONR_ENV_PRM, and TWISTEDPAIR_TWIST_PRM.

Referenced by TRANSLINE::analyze(), and TRANSLINE::synthesize().

◆ compute_single_line()

void C_MICROSTRIP::compute_single_line ( )

private

Definition at line 152 of file c_microstrip.cpp.

 {
  if( aux_ms == NULL )
  aux_ms = new MICROSTRIP();
 
  /* prepare parameters for single microstrip computations */
  aux_ms->m_parameters[EPSILONR_PRM] = m_parameters[EPSILONR_PRM];
  aux_ms->m_parameters[PHYS_WIDTH_PRM] = m_parameters[PHYS_WIDTH_PRM];
  aux_ms->m_parameters[H_PRM] = m_parameters[H_PRM];
  aux_ms->m_parameters[T_PRM] = 0.0;
 
  //aux_ms->m_parameters[H_T_PRM] = m_parameters[H_T_PRM];
  aux_ms->m_parameters[H_T_PRM] = 1e12; /* arbitrarily high */
  aux_ms->m_parameters[FREQUENCY_PRM] = m_parameters[FREQUENCY_PRM];
  aux_ms->m_parameters[MURC_PRM] = m_parameters[MURC_PRM];
  aux_ms->microstrip_Z0();
  aux_ms->dispersion();
 }

References aux_ms, MICROSTRIP::dispersion(), EPSILONR_PRM, FREQUENCY_PRM, H_PRM, H_T_PRM, TRANSLINE::m_parameters, MICROSTRIP::microstrip_Z0(), MURC_PRM, PHYS_WIDTH_PRM, and T_PRM.

Referenced by er_eff_static().

◆ conductor_losses()

void C_MICROSTRIP::conductor_losses ( )

private

Definition at line 478 of file c_microstrip.cpp.

 {
  double e_r_eff_e_0, e_r_eff_o_0, Z0_h_e, Z0_h_o, delta;
  double K, R_s, Q_c_e, Q_c_o, alpha_c_e, alpha_c_o;
 
  e_r_eff_e_0 = er_eff_e_0;
  e_r_eff_o_0 = er_eff_o_0;
  Z0_h_e = Z0_e_0 * sqrt( e_r_eff_e_0 ); /* homogeneous stripline impedance */
  Z0_h_o = Z0_o_0 * sqrt( e_r_eff_o_0 ); /* homogeneous stripline impedance */
  delta = m_parameters[SKIN_DEPTH_PRM];
 
  if( m_parameters[FREQUENCY_PRM] > 0.0 )
  {
  /* current distribution factor (same for the two modes) */
  K = exp( -1.2 * pow( ( Z0_h_e + Z0_h_o ) / ( 2.0 * ZF0 ), 0.7 ) );
  /* skin resistance */
  R_s = 1.0 / ( m_parameters[SIGMA_PRM] * delta );
  /* correction for surface roughness */
  R_s *= 1.0
  + ( ( 2.0 / M_PI )
  * atan( 1.40 * pow( ( m_parameters[ROUGH_PRM] / delta ), 2.0 ) ) );
 
  /* even-mode strip inductive quality factor */
  Q_c_e = ( M_PI * Z0_h_e * m_parameters[PHYS_WIDTH_PRM] * m_parameters[FREQUENCY_PRM] )
  / ( R_s * C0 * K );
  /* even-mode losses per unith length */
  alpha_c_e = ( 20.0 * M_PI / log( 10.0 ) ) * m_parameters[FREQUENCY_PRM]
  * sqrt( e_r_eff_e_0 ) / ( C0 * Q_c_e );
 
  /* odd-mode strip inductive quality factor */
  Q_c_o = ( M_PI * Z0_h_o * m_parameters[PHYS_WIDTH_PRM] * m_parameters[FREQUENCY_PRM] )
  / ( R_s * C0 * K );
  /* odd-mode losses per unith length */
  alpha_c_o = ( 20.0 * M_PI / log( 10.0 ) ) * m_parameters[FREQUENCY_PRM]
  * sqrt( e_r_eff_o_0 ) / ( C0 * Q_c_o );
  }
  else
  {
  alpha_c_e = alpha_c_o = 0.0;
  }
 
  atten_cond_e = alpha_c_e * m_parameters[PHYS_LEN_PRM];
  atten_cond_o = alpha_c_o * m_parameters[PHYS_LEN_PRM];
 }

References atten_cond_e, atten_cond_o, C0, delta, er_eff_e_0, er_eff_o_0, FREQUENCY_PRM, TRANSLINE::m_parameters, PHYS_LEN_PRM, PHYS_WIDTH_PRM, ROUGH_PRM, SIGMA_PRM, SKIN_DEPTH_PRM, Z0_e_0, Z0_o_0, and ZF0.

Referenced by attenuation().

◆ delta_q_cover_even()

double C_MICROSTRIP::delta_q_cover_even ( double h2h )

private

Definition at line 215 of file c_microstrip.cpp.

 {
  double q_c;
 
  if( h2h <= 39 )
  q_c = tanh( 1.626 + 0.107 * h2h - 1.733 / sqrt( h2h ) );
  else
  q_c = 1.0;
 
  return q_c;
 }

Referenced by er_eff_static().

◆ delta_q_cover_odd()

double C_MICROSTRIP::delta_q_cover_odd ( double h2h )

private

Definition at line 232 of file c_microstrip.cpp.

 {
  double q_c;
 
  if( h2h <= 7 )
  q_c = tanh( 9.575 / ( 7.0 - h2h ) - 2.965 + 1.68 * h2h - 0.311 * h2h * h2h );
  else
  q_c = 1.0;
 
  return q_c;
 }

Referenced by er_eff_static().

◆ delta_u_thickness()

void C_MICROSTRIP::delta_u_thickness ( )

private

Definition at line 120 of file c_microstrip.cpp.

 {
  double e_r, u, g, t_h;
  double delta_u, delta_t, delta_u_e, delta_u_o;
 
  e_r = m_parameters[EPSILONR_PRM];
  u = m_parameters[PHYS_WIDTH_PRM] / m_parameters[H_PRM]; /* normalized line width */
  g = m_parameters[PHYS_S_PRM] / m_parameters[H_PRM]; /* normalized line spacing */
  t_h = m_parameters[T_PRM] / m_parameters[H_PRM]; /* normalized strip thickness */
 
  if( t_h > 0.0 )
  {
  /* single microstrip correction for finite strip thickness */
  delta_u = delta_u_thickness_single( u, t_h );
  delta_t = t_h / ( g * e_r );
  /* thickness correction for the even- and odd-mode */
  delta_u_e = delta_u * ( 1.0 - 0.5 * exp( -0.69 * delta_u / delta_t ) );
  delta_u_o = delta_u_e + delta_t;
  }
  else
  {
  delta_u_e = delta_u_o = 0.0;
  }
 
  w_t_e = m_parameters[PHYS_WIDTH_PRM] + delta_u_e * m_parameters[H_PRM];
  w_t_o = m_parameters[PHYS_WIDTH_PRM] + delta_u_o * m_parameters[H_PRM];
 }

References delta_u_thickness_single(), EPSILONR_PRM, H_PRM, TRANSLINE::m_parameters, PHYS_S_PRM, PHYS_WIDTH_PRM, T_PRM, w_t_e, and w_t_o.

Referenced by calcAnalyze().

◆ delta_u_thickness_single()

double C_MICROSTRIP::delta_u_thickness_single	(	double	u,
		double	t_h
	)

private

Definition at line 88 of file c_microstrip.cpp.

 {
  double delta_u;
 
  if( t_h > 0.0 )
  {
  delta_u =
  (1.25 * t_h /
  M_PI) *
  ( 1.0 +
  log( ( 2.0 +
  (4.0 * M_PI * u -
  2.0) / ( 1.0 + exp( -100.0 * ( u - 1.0 / (2.0 * M_PI) ) ) ) ) / t_h ) );
 
  }
  else
  {
  delta_u = 0.0;
  }
  return delta_u;
 }

Referenced by delta_u_thickness().

◆ delta_Z0_even_cover()

double C_MICROSTRIP::delta_Z0_even_cover	(	double	g,
		double	u,
		double	h2h
	)

private

delta_Z0_even_cover() - compute the even-mode impedance correction for a homogeneous microstrip due to the cover

References: S. March, "Microstrip Packaging: Watch the Last Step", Microwaves, vol. 20, no. 13, pp. 83.94, Dec. 1981.

Definition at line 307 of file c_microstrip.cpp.

 {
  double f_e, g_e, delta_Z0_even;
  double x, y, A, B, C, D, E, F;
 
  A = -4.351 / pow( 1.0 + h2h, 1.842 );
  B = 6.639 / pow( 1.0 + h2h, 1.861 );
  C = -2.291 / pow( 1.0 + h2h, 1.90 );
  f_e = 1.0 - atanh( A + ( B + C * u ) * u );
 
  x = pow( 10.0, 0.103 * g - 0.159 );
  y = pow( 10.0, 0.0492 * g - 0.073 );
  D = 0.747 / sin( 0.5 * M_PI * x );
  E = 0.725 * sin( 0.5 * M_PI * y );
  F = pow( 10.0, 0.11 - 0.0947 * g );
  g_e = 270.0 * ( 1.0 - tanh( D + E * sqrt( 1.0 + h2h ) - F / ( 1.0 + h2h ) ) );
 
  delta_Z0_even = f_e * g_e;
 
  return delta_Z0_even;
 }

References A, atanh(), B, C, D, E, and F.

Referenced by Z0_even_odd().

◆ delta_Z0_odd_cover()

double C_MICROSTRIP::delta_Z0_odd_cover	(	double	g,
		double	u,
		double	h2h
	)

private

delta_Z0_odd_cover() - compute the odd-mode impedance correction for a homogeneous microstrip due to the cover

References: S. March, "Microstrip Packaging: Watch the Last Step", Microwaves, vol. 20, no. 13, pp. 83.94, Dec. 1981.

Definition at line 337 of file c_microstrip.cpp.

 {
  double f_o, g_o, delta_Z0_odd;
  double G, J, K, L;
 
  J = tanh( pow( 1.0 + h2h, 1.585 ) / 6.0 );
  f_o = pow( u, J );
 
  G = 2.178 - 0.796 * g;
 
  if( g > 0.858 )
  K = log10( 20.492 * pow( g, 0.174 ) );
  else
  K = 1.30;
 
  if( g > 0.873 )
  L = 2.51 * pow( g, -0.462 );
  else
  L = 2.674;
 
  g_o = 270.0 * ( 1.0 - tanh( G + K * sqrt( 1.0 + h2h ) - L / ( 1.0 + h2h ) ) );
 
  delta_Z0_odd = f_o * g_o;
 
  return delta_Z0_odd;
 }

References G.

Referenced by Z0_even_odd().

◆ dielectric_losses()

void C_MICROSTRIP::dielectric_losses ( )

private

Definition at line 528 of file c_microstrip.cpp.

 {
  double e_r, e_r_eff_e_0, e_r_eff_o_0;
  double alpha_d_e, alpha_d_o;
 
  e_r = m_parameters[EPSILONR_PRM];
  e_r_eff_e_0 = er_eff_e_0;
  e_r_eff_o_0 = er_eff_o_0;
 
  alpha_d_e = ( 20.0 * M_PI / log( 10.0 ) ) * ( m_parameters[FREQUENCY_PRM] / C0 )
  * ( e_r / sqrt( e_r_eff_e_0 ) ) * ( ( e_r_eff_e_0 - 1.0 ) / ( e_r - 1.0 ) )
  * m_parameters[TAND_PRM];
  alpha_d_o = ( 20.0 * M_PI / log( 10.0 ) ) * ( m_parameters[FREQUENCY_PRM] / C0 )
  * ( e_r / sqrt( e_r_eff_o_0 ) ) * ( ( e_r_eff_o_0 - 1.0 ) / ( e_r - 1.0 ) )
  * m_parameters[TAND_PRM];
 
  atten_dielectric_e = alpha_d_e * m_parameters[PHYS_LEN_PRM];
  atten_dielectric_o = alpha_d_o * m_parameters[PHYS_LEN_PRM];
 }

References atten_dielectric_e, atten_dielectric_o, C0, EPSILONR_PRM, er_eff_e_0, er_eff_o_0, FREQUENCY_PRM, TRANSLINE::m_parameters, PHYS_LEN_PRM, and TAND_PRM.

Referenced by attenuation().

◆ diff_impedance()

void C_MICROSTRIP::diff_impedance ( )

private

Note that differential impedance is exactly twice the odd mode impedance.

Odd mode is not the same as single-ended impedance, so avoid approximations found on websites that use static single ended impedance as the starting point

Definition at line 591 of file c_microstrip.cpp.

 {
  Zdiff = 2 * Z0_o_0;
 }

References Z0_o_0, and Zdiff.

Referenced by calcAnalyze().

◆ ellipk()

double TRANSLINE::ellipk ( double k )

protectedinherited

Definition at line 332 of file transline.cpp.

 {
  double r, lost;
 
  ellipke( k, r, lost );
  return r;
 }

References TRANSLINE::ellipke(), and r.

Referenced by COPLANAR::calcAnalyze().

◆ ellipke()

void TRANSLINE::ellipke	(	double	arg,
		double &	k,
		double &	e
	)

protectedinherited

Definition at line 267 of file transline.cpp.

 {
  int iMax = 16;
 
  if( arg == 1.0 )
  {
  k = INFINITY; // infinite
  e = 0;
  }
  else if( std::isinf( arg ) && arg < 0 )
  {
  k = 0;
  e = INFINITY; // infinite
  }
  else
  {
  double a, b, c, fr, s, fk = 1, fe = 1, t, da = arg;
  int i;
 
  if( arg < 0 )
  {
  fk = 1 / sqrt( 1 - arg );
  fe = sqrt( 1 - arg );
  da = -arg / ( 1 - arg );
  }
 
  a = 1;
  b = sqrt( 1 - da );
  c = sqrt( da );
  fr = 0.5;
  s = fr * c * c;
 
  for( i = 0; i < iMax; i++ )
  {
  t = ( a + b ) / 2;
  c = ( a - b ) / 2;
  b = sqrt( a * b );
  a = t;
  fr *= 2;
  s += fr * c * c;
 
  if( c / a < NR_EPSI )
  break;
  }
 
  if( i >= iMax )
  {
  k = 0;
  e = 0;
  }
  else
  {
  k = M_PI_2 / a;
  e = M_PI_2 * ( 1 - s ) / a;
  if( arg < 0 )
  {
  k *= fk;
  e *= fe;
  }
  }
  }
 }

References INFINITY, M_PI_2, and NR_EPSI.

Referenced by TRANSLINE::ellipk().

◆ er_eff_freq()

void C_MICROSTRIP::er_eff_freq ( )

private

Definition at line 428 of file c_microstrip.cpp.

 {
  double P_1, P_2, P_3, P_4, P_5, P_6, P_7;
  double P_8, P_9, P_10, P_11, P_12, P_13, P_14, P_15;
  double F_e, F_o;
  double er_eff, u, g, f_n;
 
  u = m_parameters[PHYS_WIDTH_PRM] / m_parameters[H_PRM]; /* normalize line width */
  g = m_parameters[PHYS_S_PRM] / m_parameters[H_PRM]; /* normalize line spacing */
 
  /* normalized frequency [GHz * mm] */
  f_n = m_parameters[FREQUENCY_PRM] * m_parameters[H_PRM] / 1e06;
 
  er_eff = er_eff_e_0;
  P_1 = 0.27488 + ( 0.6315 + 0.525 / pow( 1.0 + 0.0157 * f_n, 20.0 ) ) * u
  - 0.065683 * exp( -8.7513 * u );
  P_2 = 0.33622 * ( 1.0 - exp( -0.03442 * m_parameters[EPSILONR_PRM] ) );
  P_3 = 0.0363 * exp( -4.6 * u ) * ( 1.0 - exp( -pow( f_n / 38.7, 4.97 ) ) );
  P_4 = 1.0 + 2.751 * ( 1.0 - exp( -pow( m_parameters[EPSILONR_PRM] / 15.916, 8.0 ) ) );
  P_5 = 0.334 * exp( -3.3 * pow( m_parameters[EPSILONR_PRM] / 15.0, 3.0 ) ) + 0.746;
  P_6 = P_5 * exp( -pow( f_n / 18.0, 0.368 ) );
  P_7 = 1.0
  + 4.069 * P_6 * pow( g, 0.479 ) * exp( -1.347 * pow( g, 0.595 ) - 0.17 * pow( g, 2.5 ) );
 
  F_e = P_1 * P_2 * pow( ( P_3 * P_4 + 0.1844 * P_7 ) * f_n, 1.5763 );
  /* even-mode effective dielectric constant */
  er_eff_e = m_parameters[EPSILONR_PRM] - ( m_parameters[EPSILONR_PRM] - er_eff ) / ( 1.0 + F_e );
 
  er_eff = er_eff_o_0;
  P_8 = 0.7168 * ( 1.0 + 1.076 / ( 1.0 + 0.0576 * ( m_parameters[EPSILONR_PRM] - 1.0 ) ) );
  P_9 = P_8
  - 0.7913 * ( 1.0 - exp( -pow( f_n / 20.0, 1.424 ) ) )
  * atan( 2.481 * pow( m_parameters[EPSILONR_PRM] / 8.0, 0.946 ) );
  P_10 = 0.242 * pow( m_parameters[EPSILONR_PRM] - 1.0, 0.55 );
  P_11 = 0.6366 * ( exp( -0.3401 * f_n ) - 1.0 ) * atan( 1.263 * pow( u / 3.0, 1.629 ) );
  P_12 = P_9 + ( 1.0 - P_9 ) / ( 1.0 + 1.183 * pow( u, 1.376 ) );
  P_13 = 1.695 * P_10 / ( 0.414 + 1.605 * P_10 );
  P_14 = 0.8928 + 0.1072 * ( 1.0 - exp( -0.42 * pow( f_n / 20.0, 3.215 ) ) );
  P_15 = fabs( 1.0 - 0.8928 * ( 1.0 + P_11 ) * P_12 * exp( -P_13 * pow( g, 1.092 ) ) / P_14 );
 
  F_o = P_1 * P_2 * pow( ( P_3 * P_4 + 0.1844 ) * f_n * P_15, 1.5763 );
  /* odd-mode effective dielectric constant */
  er_eff_o = m_parameters[EPSILONR_PRM] - ( m_parameters[EPSILONR_PRM] - er_eff ) / ( 1.0 + F_o );
 }

References EPSILONR_PRM, TRANSLINE::er_eff, er_eff_e, er_eff_e_0, er_eff_o, er_eff_o_0, FREQUENCY_PRM, H_PRM, TRANSLINE::m_parameters, PHYS_S_PRM, and PHYS_WIDTH_PRM.

Referenced by calcAnalyze().

◆ er_eff_static()

void C_MICROSTRIP::er_eff_static ( )

private

er_eff_static() - compute the static effective dielectric constants

References: Manfred Kirschning and Rolf Jansen, "Accurate Wide-Range Design Equations for the Frequency-Dependent Characteristic of Parallel Coupled Microstrip Lines", IEEE Trans. MTT, vol. 32, no. 1, Jan. 1984

Definition at line 253 of file c_microstrip.cpp.

 {
  double u_t_e, u_t_o, g, h2, h2h;
  double a_o, t_h, q, q_c, q_t, q_inf;
  double er_eff_single;
  double er;
 
  er = m_parameters[EPSILONR_PRM];
 
  /* compute zero-thickness single line parameters */
  compute_single_line();
  er_eff_single = aux_ms->er_eff_0;
 
  h2 = m_parameters[H_T_PRM];
  u_t_e = w_t_e / m_parameters[H_PRM]; /* normalized even_mode line width */
  u_t_o = w_t_o / m_parameters[H_PRM]; /* normalized odd_mode line width */
  g = m_parameters[PHYS_S_PRM] / m_parameters[H_PRM]; /* normalized line spacing */
  h2h = h2 / m_parameters[H_PRM]; /* normalized cover height */
  t_h = m_parameters[T_PRM] / m_parameters[H_PRM]; /* normalized strip thickness */
 
  /* filling factor, computed with thickness corrected width */
  q_inf = filling_factor_even( u_t_e, g, er );
  /* cover effect */
  q_c = delta_q_cover_even( h2h );
  /* thickness effect */
  q_t = aux_ms->delta_q_thickness( u_t_e, t_h );
  /* resultant filling factor */
  q = ( q_inf - q_t ) * q_c;
  /* static even-mode effective dielectric constant */
  er_eff_e_0 = 0.5 * ( er + 1.0 ) + 0.5 * ( er - 1.0 ) * q;
 
  /* filling factor, with width corrected for thickness */
  q_inf = filling_factor_odd( u_t_o, g, er );
  /* cover effect */
  q_c = delta_q_cover_odd( h2h );
  /* thickness effect */
  q_t = aux_ms->delta_q_thickness( u_t_o, t_h );
  /* resultant filling factor */
  q = ( q_inf - q_t ) * q_c;
 
  a_o = 0.7287 * ( er_eff_single - 0.5 * ( er + 1.0 ) ) * ( 1.0 - exp( -0.179 * u_t_o ) );
 
  /* static odd-mode effective dielectric constant */
  er_eff_o_0 = ( 0.5 * ( er + 1.0 ) + a_o - er_eff_single ) * q + er_eff_single;
 }

References aux_ms, compute_single_line(), delta_q_cover_even(), delta_q_cover_odd(), MICROSTRIP::delta_q_thickness(), EPSILONR_PRM, MICROSTRIP::er_eff_0, er_eff_e_0, er_eff_o_0, filling_factor_even(), filling_factor_odd(), H_PRM, H_T_PRM, TRANSLINE::m_parameters, PHYS_S_PRM, T_PRM, w_t_e, and w_t_o.

Referenced by calcAnalyze().

◆ filling_factor_even()

double C_MICROSTRIP::filling_factor_even	(	double	u,
		double	g,
		double	e_r
	)

private

Definition at line 176 of file c_microstrip.cpp.

 {
  double v, v3, v4, a_e, b_e, q_inf;
 
  v = u * ( 20.0 + g * g ) / ( 10.0 + g * g ) + g * exp( -g );
  v3 = v * v * v;
  v4 = v3 * v;
  a_e = 1.0 + log( ( v4 + v * v / 2704.0 ) / ( v4 + 0.432 ) ) / 49.0
  + log( 1.0 + v3 / 5929.741 ) / 18.7;
  b_e = 0.564 * pow( ( ( e_r - 0.9 ) / ( e_r + 3.0 ) ), 0.053 );
 
  /* filling factor, with width corrected for thickness */
  q_inf = pow( ( 1.0 + 10.0 / v ), -a_e * b_e );
 
  return q_inf;
 }

Referenced by er_eff_static().

◆ filling_factor_odd()

double C_MICROSTRIP::filling_factor_odd	(	double	u,
		double	g,
		double	e_r
	)

private

filling_factor_odd() - compute the filling factor for the coupled microstrips odd-mode without cover and zero conductor thickness

Definition at line 198 of file c_microstrip.cpp.

 {
  double b_odd = 0.747 * e_r / ( 0.15 + e_r );
  double c_odd = b_odd - ( b_odd - 0.207 ) * exp( -0.414 * u );
  double d_odd = 0.593 + 0.694 * exp( -0.562 * u );
 
  /* filling factor, with width corrected for thickness */
  double q_inf = exp( -c_odd * pow( g, d_odd ) );
 
  return q_inf;
 }

Referenced by er_eff_static().

◆ getProperties()

void TRANSLINE::getProperties ( )

inherited

@function getProperties

Get all properties from the UI. Computes some extra ones.

Definition at line 158 of file transline.cpp.

 {
  for( int i = 0; i < DUMMY_PRM; ++i )
  {
  m_parameters[i] = getProperty( (PRMS_ID) i );
  setErrorLevel( (PRMS_ID) i, TRANSLINE_OK );
  }
 
  m_parameters[SIGMA_PRM] = 1.0 / getProperty( RHO_PRM );
  m_parameters[EPSILON_EFF_PRM] = 1.0;
  m_parameters[SKIN_DEPTH_PRM] = skin_depth();
 }

References DUMMY_PRM, EPSILON_EFF_PRM, TRANSLINE::getProperty(), TRANSLINE::m_parameters, RHO_PRM, TRANSLINE::setErrorLevel(), SIGMA_PRM, TRANSLINE::skin_depth(), SKIN_DEPTH_PRM, and TRANSLINE_OK.

Referenced by TRANSLINE::analyze(), and TRANSLINE::synthesize().

◆ getProperty()

double TRANSLINE::getProperty ( enum PRMS_ID aPrmId )

inherited

Definition at line 148 of file transline.cpp.

 {
  return GetPropertyInDialog( aPrmId );
 }

References GetPropertyInDialog().

Referenced by RECTWAVEGUIDE::get_rectwaveguide_comp(), RECTWAVEGUIDE::get_rectwaveguide_elec(), RECTWAVEGUIDE::get_rectwaveguide_phys(), RECTWAVEGUIDE::get_rectwaveguide_sub(), and TRANSLINE::getProperties().

◆ Init()

void TRANSLINE::Init ( )

inherited

Definition at line 98 of file transline.cpp.

 {
  wxColour wxcol = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOW );
  okCol = KIGFX::COLOR4D( wxcol );
  okCol.r = wxcol.Red() / 255.0;
  okCol.g = wxcol.Green() / 255.0;
  okCol.b = wxcol.Blue() / 255.0;
  int i;
  // Initialize these variables mainly to avoid warnings from a static analyzer
  for( i = 0; i < EXTRA_PRMS_COUNT; ++i )
  {
  m_parameters[i] = 0;
  }
 }

References KIGFX::COLOR4D::b, EXTRA_PRMS_COUNT, KIGFX::COLOR4D::g, TRANSLINE::m_parameters, TRANSLINE::okCol, and KIGFX::COLOR4D::r.

Referenced by C_MICROSTRIP(), COAX::COAX(), COPLANAR::COPLANAR(), MICROSTRIP::MICROSTRIP(), RECTWAVEGUIDE::RECTWAVEGUIDE(), STRIPLINE::STRIPLINE(), TRANSLINE::TRANSLINE(), and TWISTEDPAIR::TWISTEDPAIR().

◆ isSelected()

bool TRANSLINE::isSelected ( enum PRMS_ID aPrmId )

inherited

Definition at line 127 of file transline.cpp.

 {
  return IsSelectedInDialog( aPrmId );
 }

References IsSelectedInDialog().

Referenced by COPLANAR::calcSynthesize(), TWISTEDPAIR::calcSynthesize(), COAX::calcSynthesize(), TWISTEDPAIR::showSynthesize(), COAX::showSynthesize(), COPLANAR::showSynthesize(), and RECTWAVEGUIDE::showSynthesize().

◆ line_angle()

void C_MICROSTRIP::line_angle ( )

private

Definition at line 564 of file c_microstrip.cpp.

 {
  double e_r_eff_e, e_r_eff_o;
  double v_e, v_o, lambda_g_e, lambda_g_o;
 
  e_r_eff_e = er_eff_e;
  e_r_eff_o = er_eff_o;
 
  /* even-mode velocity */
  v_e = C0 / sqrt( e_r_eff_e );
  /* odd-mode velocity */
  v_o = C0 / sqrt( e_r_eff_o );
  /* even-mode wavelength */
  lambda_g_e = v_e / m_parameters[FREQUENCY_PRM];
  /* odd-mode wavelength */
  lambda_g_o = v_o / m_parameters[FREQUENCY_PRM];
  /* electrical angles */
  ang_l_e = 2.0 * M_PI * m_parameters[PHYS_LEN_PRM] / lambda_g_e; /* in radians */
  ang_l_o = 2.0 * M_PI * m_parameters[PHYS_LEN_PRM] / lambda_g_o; /* in radians */
 }

References ang_l_e, ang_l_o, C0, er_eff_e, er_eff_o, FREQUENCY_PRM, TRANSLINE::m_parameters, and PHYS_LEN_PRM.

Referenced by calcAnalyze().

◆ minimizeZ0Error1D()

bool TRANSLINE::minimizeZ0Error1D ( double * aVar )

protectedinherited

@function minimizeZ0Error1D

Tries to find a parameter that minimizes the error ( on Z0 ). This function only works with a single parameter. Calls calcAnalyze several times until the error is acceptable. While the error is unnacceptable, changes slightly the parameter.

This function does not change Z0 / Angl_L.

Parameters

avar	Parameter to synthesize

Returns: 'true' if error < MAX_ERROR, else 'false'

Definition at line 357 of file transline.cpp.

 {
  double Z0_dest, Z0_current, Z0_result, angl_l_dest, increment, slope, error;
  int iteration;
 
  if( !std::isfinite( m_parameters[Z0_PRM] ) )
  {
  *aVar = NAN;
  return false;
  }
 
  if( ( !std::isfinite( *aVar ) ) || ( *aVar == 0 ) )
  *aVar = 0.001;
 
  /* required value of Z0 */
  Z0_dest = m_parameters[Z0_PRM];
 
  /* required value of angl_l */
  angl_l_dest = m_parameters[ANG_L_PRM];
 
  /* Newton's method */
  iteration = 0;
 
  /* compute parameters */
  calcAnalyze();
  Z0_current = m_parameters[Z0_PRM];
 
  error = fabs( Z0_dest - Z0_current );
 
  while( error > MAX_ERROR )
  {
  iteration++;
  increment = *aVar / 100.0;
  *aVar += increment;
  /* compute parameters */
  calcAnalyze();
  Z0_result = m_parameters[Z0_PRM];
  /* f(w(n)) = Z0 - Z0(w(n)) */
  /* f'(w(n)) = -f'(Z0(w(n))) */
  /* f'(Z0(w(n))) = (Z0(w(n)) - Z0(w(n+delw))/delw */
  /* w(n+1) = w(n) - f(w(n))/f'(w(n)) */
  slope = ( Z0_result - Z0_current ) / increment;
  slope = ( Z0_dest - Z0_current ) / slope - increment;
  *aVar += slope;
 
  if( *aVar <= 0.0 )
  *aVar = increment;
 
  /* find new error */
  /* compute parameters */
  calcAnalyze();
  Z0_current = m_parameters[Z0_PRM];
  error = fabs( Z0_dest - Z0_current );
 
  if( iteration > 100 )
  break;
  }
 
  /* Compute one last time, but with correct length */
  m_parameters[Z0_PRM] = Z0_dest;
  m_parameters[ANG_L_PRM] = angl_l_dest;
  m_parameters[PHYS_LEN_PRM] = C0 / m_parameters[FREQUENCY_PRM]
  / sqrt( m_parameters[EPSILON_EFF_PRM] ) * m_parameters[ANG_L_PRM]
  / 2.0 / M_PI; /* in m */
  calcAnalyze();
 
  /* Restore parameters */
  m_parameters[Z0_PRM] = Z0_dest;
  m_parameters[ANG_L_PRM] = angl_l_dest;
  m_parameters[PHYS_LEN_PRM] = C0 / m_parameters[FREQUENCY_PRM]
  / sqrt( m_parameters[EPSILON_EFF_PRM] ) * m_parameters[ANG_L_PRM]
  / 2.0 / M_PI; /* in m */
  return error <= MAX_ERROR;
 }

References ANG_L_PRM, C0, TRANSLINE::calcAnalyze(), EPSILON_EFF_PRM, FREQUENCY_PRM, TRANSLINE::m_parameters, MAX_ERROR, PHYS_LEN_PRM, and Z0_PRM.

Referenced by COPLANAR::calcSynthesize(), TWISTEDPAIR::calcSynthesize(), STRIPLINE::calcSynthesize(), and MICROSTRIP::calcSynthesize().

◆ setErrorLevel()

void TRANSLINE::setErrorLevel	(	PRMS_ID	aP,
		char	aErrorLevel
	)

protectedinherited

@function setErrorLevel

set an error / warning level for a given parameter.

See also: TRANSLINE_OK; TRANSLINE_WARNING; TRANSLINE_ERROR

Parameters

aP	parameter
aErrorLevel	Error level

Definition at line 443 of file transline.cpp.

 {
  switch( aErrorLevel )
  {
  case TRANSLINE_WARNING: SetPropertyBgColorInDialog( aP, &warnCol ); break;
  case TRANSLINE_ERROR: SetPropertyBgColorInDialog( aP, &errCol ); break;
  default: SetPropertyBgColorInDialog( aP, &okCol ); break;
  }
 }

References TRANSLINE::errCol, TRANSLINE::okCol, SetPropertyBgColorInDialog(), TRANSLINE_ERROR, TRANSLINE_WARNING, and TRANSLINE::warnCol.

Referenced by TRANSLINE::checkProperties(), TRANSLINE::getProperties(), TWISTEDPAIR::showAnalyze(), COAX::showAnalyze(), STRIPLINE::showAnalyze(), COPLANAR::showAnalyze(), RECTWAVEGUIDE::showAnalyze(), MICROSTRIP::showAnalyze(), showAnalyze(), TWISTEDPAIR::showSynthesize(), STRIPLINE::showSynthesize(), COAX::showSynthesize(), COPLANAR::showSynthesize(), RECTWAVEGUIDE::showSynthesize(), MICROSTRIP::showSynthesize(), and showSynthesize().

◆ setProperty()

void TRANSLINE::setProperty	(	enum PRMS_ID	aPrmId,
		double	aValue
	)

inherited

Definition at line 117 of file transline.cpp.

 {
  SetPropertyInDialog( aPrmId, value );
 }

References SetPropertyInDialog().

Referenced by MICROSTRIP::show_results(), TWISTEDPAIR::showAnalyze(), COAX::showAnalyze(), STRIPLINE::showAnalyze(), COPLANAR::showAnalyze(), RECTWAVEGUIDE::showAnalyze(), MICROSTRIP::showAnalyze(), showAnalyze(), TWISTEDPAIR::showSynthesize(), STRIPLINE::showSynthesize(), COAX::showSynthesize(), COPLANAR::showSynthesize(), RECTWAVEGUIDE::showSynthesize(), MICROSTRIP::showSynthesize(), and showSynthesize().

◆ setResult() [1/2]

void TRANSLINE::setResult	(	int	line,
		const wxString &	text
	)

inherited

Definition at line 135 of file transline.cpp.

 {
  SetResultInDialog( line, text );
 }

References SetResultInDialog(), and text.

Referenced by TWISTEDPAIR::show_results(), STRIPLINE::show_results(), COAX::show_results(), COPLANAR::show_results(), RECTWAVEGUIDE::show_results(), MICROSTRIP::show_results(), and show_results().

◆ setResult() [2/2]

void TRANSLINE::setResult	(	int	line,
		double	value,
		const wxString &	text
	)

inherited

Definition at line 141 of file transline.cpp.

 {
  SetResultInDialog( line, value, text );
 }

References SetResultInDialog(), and text.

◆ show_results()

void C_MICROSTRIP::show_results ( )

overrideprivatevirtual

Shows results.

Reimplemented from TRANSLINE.

Definition at line 872 of file c_microstrip.cpp.

 {
 
  setResult( 0, er_eff_e, "" );
  setResult( 1, er_eff_o, "" );
  setResult( 2, atten_cond_e, wxT( "dB" ) );
  setResult( 3, atten_cond_o, wxT( "dB" ) );
  setResult( 4, atten_dielectric_e, wxT( "dB" ) );
  setResult( 5, atten_dielectric_o, wxT( "dB" ) );
 
  setResult( 6, m_parameters[SKIN_DEPTH_PRM] / UNIT_MICRON, wxT( "µm" ) );
  setResult( 7, Zdiff, wxT( "Ω" ) );
 }

References atten_cond_e, atten_cond_o, atten_dielectric_e, atten_dielectric_o, er_eff_e, er_eff_o, TRANSLINE::m_parameters, TRANSLINE::setResult(), SKIN_DEPTH_PRM, UNIT_MICRON, and Zdiff.

◆ showAnalyze()

void C_MICROSTRIP::showAnalyze ( )

overrideprivatevirtual

Shows synthesis results and checks for errors / warnings.

Reimplemented from TRANSLINE.

Definition at line 818 of file c_microstrip.cpp.

 {
  setProperty( Z0_E_PRM, m_parameters[Z0_E_PRM] );
  setProperty( Z0_O_PRM, m_parameters[Z0_O_PRM] );
  setProperty( ANG_L_PRM, sqrt( ang_l_e * ang_l_o ) );
 
  //Check for errors
  if( !std::isfinite( m_parameters[Z0_O_PRM] ) || m_parameters[Z0_O_PRM] <= 0.0 )
  setErrorLevel( Z0_O_PRM, TRANSLINE_ERROR );
 
  if( !std::isfinite( m_parameters[Z0_E_PRM] ) || m_parameters[Z0_E_PRM] <= 0.0 )
  setErrorLevel( Z0_E_PRM, TRANSLINE_ERROR );
 
  if( !std::isfinite( m_parameters[ANG_L_PRM] ) || m_parameters[ANG_L_PRM] <= 0.0 )
  setErrorLevel( ANG_L_PRM, TRANSLINE_ERROR );
 
  // Check for warnings
  if( !std::isfinite( m_parameters[PHYS_WIDTH_PRM] ) || m_parameters[PHYS_WIDTH_PRM] <= 0.0 )
  setErrorLevel( PHYS_WIDTH_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[PHYS_S_PRM] ) || m_parameters[PHYS_S_PRM] <= 0.0 )
  setErrorLevel( PHYS_S_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[PHYS_LEN_PRM] ) || m_parameters[PHYS_LEN_PRM] <= 0.0 )
  setErrorLevel( PHYS_LEN_PRM, TRANSLINE_WARNING );
 }

References ang_l_e, ang_l_o, ANG_L_PRM, TRANSLINE::m_parameters, PHYS_LEN_PRM, PHYS_S_PRM, PHYS_WIDTH_PRM, TRANSLINE::setErrorLevel(), TRANSLINE::setProperty(), TRANSLINE_ERROR, TRANSLINE_WARNING, Z0_E_PRM, and Z0_O_PRM.

◆ showSynthesize()

void C_MICROSTRIP::showSynthesize ( )

overrideprivatevirtual

Shows analysis results and checks for errors / warnings.

Reimplemented from TRANSLINE.

Definition at line 845 of file c_microstrip.cpp.

 {
  setProperty( PHYS_WIDTH_PRM, m_parameters[PHYS_WIDTH_PRM] );
  setProperty( PHYS_S_PRM, m_parameters[PHYS_S_PRM] );
  setProperty( PHYS_LEN_PRM, m_parameters[PHYS_LEN_PRM] );
 
  //Check for errors
  if( !std::isfinite( m_parameters[PHYS_WIDTH_PRM] ) || m_parameters[PHYS_WIDTH_PRM] <= 0.0 )
  setErrorLevel( PHYS_WIDTH_PRM, TRANSLINE_ERROR );
 
  if( !std::isfinite( m_parameters[PHYS_S_PRM] ) || m_parameters[PHYS_S_PRM] <= 0.0 )
  setErrorLevel( PHYS_S_PRM, TRANSLINE_ERROR );
 
  if( !std::isfinite( m_parameters[PHYS_LEN_PRM] ) || m_parameters[PHYS_LEN_PRM] <= 0.0 )
  setErrorLevel( PHYS_LEN_PRM, TRANSLINE_ERROR );
 
  // Check for warnings
  if( !std::isfinite( m_parameters[Z0_O_PRM] ) || m_parameters[Z0_O_PRM] <= 0.0 )
  setErrorLevel( Z0_O_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[Z0_E_PRM] ) || m_parameters[Z0_E_PRM] <= 0.0 )
  setErrorLevel( Z0_E_PRM, TRANSLINE_WARNING );
 
  if( !std::isfinite( m_parameters[ANG_L_PRM] ) || m_parameters[ANG_L_PRM] <= 0.0 )
  setErrorLevel( ANG_L_PRM, TRANSLINE_WARNING );
 }

References ANG_L_PRM, TRANSLINE::m_parameters, PHYS_LEN_PRM, PHYS_S_PRM, PHYS_WIDTH_PRM, TRANSLINE::setErrorLevel(), TRANSLINE::setProperty(), TRANSLINE_ERROR, TRANSLINE_WARNING, Z0_E_PRM, and Z0_O_PRM.

◆ skin_depth()

double TRANSLINE::skin_depth ( )

protectedinherited

@function skin_depth calculate skin depth

$\frac{1}{\sqrt{ \pi \cdot f \cdot \mu \cdot \sigma }}$

Definition at line 245 of file transline.cpp.

 {
  double depth;
  depth = 1.0
  / sqrt( M_PI * m_parameters[FREQUENCY_PRM] * m_parameters[MURC_PRM] * MU0
  * m_parameters[SIGMA_PRM] );
  return depth;
 }

References FREQUENCY_PRM, TRANSLINE::m_parameters, MU0, MURC_PRM, and SIGMA_PRM.

Referenced by MICROSTRIP::attenuation(), attenuation(), STRIPLINE::calcAnalyze(), COPLANAR::calcAnalyze(), and TRANSLINE::getProperties().

◆ syn_err_fun()

void C_MICROSTRIP::syn_err_fun	(	double *	f1,
		double *	f2,
		double	s_h,
		double	w_h,
		double	e_r,
		double	w_h_se,
		double	w_h_so
	)

private

Definition at line 597 of file c_microstrip.cpp.

 {
  double g, he;
 
  g = cosh( 0.5 * M_PI * s_h );
  he = cosh( M_PI * w_h + 0.5 * M_PI * s_h );
 
  *f1 = ( 2.0 / M_PI ) * acosh( ( 2.0 * he - g + 1.0 ) / ( g + 1.0 ) );
  *f2 = ( 2.0 / M_PI ) * acosh( ( 2.0 * he - g - 1.0 ) / ( g - 1.0 ) );
 
  if( e_r <= 6.0 )
  *f2 += ( 4.0 / ( M_PI * ( 1.0 + e_r / 2.0 ) ) ) * acosh( 1.0 + 2.0 * w_h / s_h );
  else
  *f2 += ( 1.0 / M_PI ) * acosh( 1.0 + 2.0 * w_h / s_h );
 
  *f1 -= w_h_se;
  *f2 -= w_h_so;
 }

References acosh().

Referenced by synth_width().

◆ syn_fun()

void C_MICROSTRIP::syn_fun	(	double *	f1,
		double *	f2,
		double	s_h,
		double	w_h,
		double	Z0_e,
		double	Z0_o
	)

private

Definition at line 887 of file c_microstrip.cpp.

 {
  m_parameters[PHYS_S_PRM] = s_h * m_parameters[H_PRM];
  m_parameters[PHYS_WIDTH_PRM] = w_h * m_parameters[H_PRM];
 
  /* compute coupled microstrip parameters */
  calcAnalyze();
 
  *f1 = m_parameters[Z0_E_PRM] - Z0_e;
  *f2 = m_parameters[Z0_O_PRM] - Z0_o;
 }

References calcAnalyze(), H_PRM, TRANSLINE::m_parameters, PHYS_S_PRM, PHYS_WIDTH_PRM, Z0_E_PRM, and Z0_O_PRM.

Referenced by calcSynthesize().

◆ synth_width()

void C_MICROSTRIP::synth_width ( )

private

Definition at line 625 of file c_microstrip.cpp.

 {
  double Z0, e_r;
  double w_h_se, w_h_so, w_h, a, ce, co, s_h;
  double f1, f2, ft1, ft2, j11, j12, j21, j22, d_s_h, d_w_h, err;
  double eps = 1e-04;
 
  f1 = f2 = 0;
  e_r = m_parameters[EPSILONR_PRM];
 
  Z0 = m_parameters[Z0_E_PRM] / 2.0;
  /* Wheeler formula for single microstrip synthesis */
  a = exp( Z0 * sqrt( e_r + 1.0 ) / 42.4 ) - 1.0;
  w_h_se = 8.0 * sqrt( a * ( ( 7.0 + 4.0 / e_r ) / 11.0 ) + ( ( 1.0 + 1.0 / e_r ) / 0.81 ) ) / a;
 
  Z0 = m_parameters[Z0_O_PRM] / 2.0;
  /* Wheeler formula for single microstrip synthesis */
  a = exp( Z0 * sqrt( e_r + 1.0 ) / 42.4 ) - 1.0;
  w_h_so = 8.0 * sqrt( a * ( ( 7.0 + 4.0 / e_r ) / 11.0 ) + ( ( 1.0 + 1.0 / e_r ) / 0.81 ) ) / a;
 
  ce = cosh( 0.5 * M_PI * w_h_se );
  co = cosh( 0.5 * M_PI * w_h_so );
  /* first guess at m_parameters[PHYS_S_PRM]/h */
  s_h = ( 2.0 / M_PI ) * acosh( ( ce + co - 2.0 ) / ( co - ce ) );
  /* first guess at w/h */
  w_h = acosh( ( ce * co - 1.0 ) / ( co - ce ) ) / M_PI - s_h / 2.0;
 
  m_parameters[PHYS_S_PRM] = s_h * m_parameters[H_PRM];
  m_parameters[PHYS_WIDTH_PRM] = w_h * m_parameters[H_PRM];
 
  syn_err_fun( &f1, &f2, s_h, w_h, e_r, w_h_se, w_h_so );
 
  /* rather crude Newton-Rhapson; we need this because the estimate of */
  /* w_h is often quite far from the true value (see Akhtarzad S. et al.) */
  do
  {
  /* compute Jacobian */
  syn_err_fun( &ft1, &ft2, s_h + eps, w_h, e_r, w_h_se, w_h_so );
  j11 = ( ft1 - f1 ) / eps;
  j21 = ( ft2 - f2 ) / eps;
  syn_err_fun( &ft1, &ft2, s_h, w_h + eps, e_r, w_h_se, w_h_so );
  j12 = ( ft1 - f1 ) / eps;
  j22 = ( ft2 - f2 ) / eps;
 
  /* compute next step */
  d_s_h = ( -f1 * j22 + f2 * j12 ) / ( j11 * j22 - j21 * j12 );
  d_w_h = ( -f2 * j11 + f1 * j21 ) / ( j11 * j22 - j21 * j12 );
 
  //g_print("j11 = %e\tj12 = %e\tj21 = %e\tj22 = %e\n", j11, j12, j21, j22);
  //g_print("det = %e\n", j11*j22 - j21*j22);
  //g_print("d_s_h = %e\td_w_h = %e\n", d_s_h, d_w_h);
 
  s_h += d_s_h;
  w_h += d_w_h;
 
  /* check the error */
  syn_err_fun( &f1, &f2, s_h, w_h, e_r, w_h_se, w_h_so );
 
  err = sqrt( f1 * f1 + f2 * f2 );
  /* converged ? */
  } while( err > 1e-04 );
 
 
  m_parameters[PHYS_S_PRM] = s_h * m_parameters[H_PRM];
  m_parameters[PHYS_WIDTH_PRM] = w_h * m_parameters[H_PRM];
 }

References acosh(), EPSILONR_PRM, H_PRM, TRANSLINE::m_parameters, PHYS_S_PRM, PHYS_WIDTH_PRM, syn_err_fun(), Z0_E_PRM, and Z0_O_PRM.

Referenced by calcSynthesize().

◆ synthesize()

void TRANSLINE::synthesize ( )

virtualinherited

Definition at line 228 of file transline.cpp.

 {
  getProperties();
  checkProperties();
  calcSynthesize();
  showSynthesize();
  show_results();
 }

References TRANSLINE::calcSynthesize(), TRANSLINE::checkProperties(), TRANSLINE::getProperties(), TRANSLINE::show_results(), and TRANSLINE::showSynthesize().

Referenced by PANEL_TRANSLINE::OnTranslineSynthetize().

◆ Z0_dispersion()

void C_MICROSTRIP::Z0_dispersion ( )

private

Definition at line 697 of file c_microstrip.cpp.

 {
  double Q_0;
  double Q_11, Q_12, Q_13, Q_14, Q_15, Q_16, Q_17, Q_18, Q_19, Q_20, Q_21;
  double Q_22, Q_23, Q_24, Q_25, Q_26, Q_27, Q_28, Q_29;
  double r_e, q_e, p_e, d_e, C_e;
  double e_r_eff_o_f, e_r_eff_o_0;
  double e_r_eff_single_f, e_r_eff_single_0, Z0_single_f;
  double f_n, g, u, e_r;
  double R_1, R_2, R_7, R_10, R_11, R_12, R_15, R_16, tmpf;
 
  e_r = m_parameters[EPSILONR_PRM];
 
  u = m_parameters[PHYS_WIDTH_PRM] / m_parameters[H_PRM]; /* normalize line width */
  g = m_parameters[PHYS_S_PRM] / m_parameters[H_PRM]; /* normalize line spacing */
 
  /* normalized frequency [GHz * mm] */
  f_n = m_parameters[FREQUENCY_PRM] * m_parameters[H_PRM] / 1e06;
 
  e_r_eff_single_f = aux_ms->er_eff;
  e_r_eff_single_0 = aux_ms->er_eff_0;
  Z0_single_f = aux_ms->m_parameters[Z0_PRM];
 
  e_r_eff_o_f = er_eff_o;
  e_r_eff_o_0 = er_eff_o_0;
 
  Q_11 = 0.893 * ( 1.0 - 0.3 / ( 1.0 + 0.7 * ( e_r - 1.0 ) ) );
  Q_12 = 2.121 * ( pow( f_n / 20.0, 4.91 ) / ( 1.0 + Q_11 * pow( f_n / 20.0, 4.91 ) ) )
  * exp( -2.87 * g ) * pow( g, 0.902 );
  Q_13 = 1.0 + 0.038 * pow( e_r / 8.0, 5.1 );
  Q_14 = 1.0 + 1.203 * pow( e_r / 15.0, 4.0 ) / ( 1.0 + pow( e_r / 15.0, 4.0 ) );
  Q_15 = 1.887 * exp( -1.5 * pow( g, 0.84 ) ) * pow( g, Q_14 )
  / ( 1.0
  + 0.41 * pow( f_n / 15.0, 3.0 ) * pow( u, 2.0 / Q_13 )
  / ( 0.125 + pow( u, 1.626 / Q_13 ) ) );
  Q_16 = ( 1.0 + 9.0 / ( 1.0 + 0.403 * pow( e_r - 1.0, 2 ) ) ) * Q_15;
  Q_17 = 0.394 * ( 1.0 - exp( -1.47 * pow( u / 7.0, 0.672 ) ) )
  * ( 1.0 - exp( -4.25 * pow( f_n / 20.0, 1.87 ) ) );
  Q_18 = 0.61 * ( 1.0 - exp( -2.13 * pow( u / 8.0, 1.593 ) ) ) / ( 1.0 + 6.544 * pow( g, 4.17 ) );
  Q_19 = 0.21 * g * g * g * g
  / ( ( 1.0 + 0.18 * pow( g, 4.9 ) ) * ( 1.0 + 0.1 * u * u )
  * ( 1.0 + pow( f_n / 24.0, 3.0 ) ) );
  Q_20 = ( 0.09 + 1.0 / ( 1.0 + 0.1 * pow( e_r - 1, 2.7 ) ) ) * Q_19;
  Q_21 = fabs( 1.0
  - 42.54 * pow( g, 0.133 ) * exp( -0.812 * g ) * pow( u, 2.5 )
  / ( 1.0 + 0.033 * pow( u, 2.5 ) ) );
 
  r_e = pow( f_n / 28.843, 12 );
  q_e = 0.016 + pow( 0.0514 * e_r * Q_21, 4.524 );
  p_e = 4.766 * exp( -3.228 * pow( u, 0.641 ) );
  d_e = 5.086 * q_e * ( r_e / ( 0.3838 + 0.386 * q_e ) )
  * ( exp( -22.2 * pow( u, 1.92 ) ) / ( 1.0 + 1.2992 * r_e ) )
  * ( pow( e_r - 1.0, 6.0 ) / ( 1.0 + 10 * pow( e_r - 1.0, 6.0 ) ) );
  C_e = 1.0
  + 1.275
  * ( 1.0
  - exp( -0.004625 * p_e * pow( e_r, 1.674 )
  * pow( f_n / 18.365, 2.745 ) ) )
  - Q_12 + Q_16 - Q_17 + Q_18 + Q_20;
 
 
  R_1 = 0.03891 * pow( e_r, 1.4 );
  R_2 = 0.267 * pow( u, 7.0 );
  R_7 = 1.206 - 0.3144 * exp( -R_1 ) * ( 1.0 - exp( -R_2 ) );
  R_10 = 0.00044 * pow( e_r, 2.136 ) + 0.0184;
  tmpf = pow( f_n / 19.47, 6.0 );
  R_11 = tmpf / ( 1.0 + 0.0962 * tmpf );
  R_12 = 1.0 / ( 1.0 + 0.00245 * u * u );
  R_15 = 0.707 * R_10 * pow( f_n / 12.3, 1.097 );
  R_16 = 1.0 + 0.0503 * e_r * e_r * R_11 * ( 1.0 - exp( -pow( u / 15.0, 6.0 ) ) );
  Q_0 = R_7 * ( 1.0 - 1.1241 * ( R_12 / R_16 ) * exp( -0.026 * pow( f_n, 1.15656 ) - R_15 ) );
 
  /* even-mode frequency-dependent characteristic impedances */
  m_parameters[Z0_E_PRM] = Z0_e_0 * pow( 0.9408 * pow( e_r_eff_single_f, C_e ) - 0.9603, Q_0 )
  / pow( ( 0.9408 - d_e ) * pow( e_r_eff_single_0, C_e ) - 0.9603, Q_0 );
 
  Q_29 = 15.16 / ( 1.0 + 0.196 * pow( e_r - 1.0, 2.0 ) );
  tmpf = pow( e_r - 1.0, 3.0 );
  Q_28 = 0.149 * tmpf / ( 94.5 + 0.038 * tmpf );
  tmpf = pow( e_r - 1.0, 1.5 );
  Q_27 = 0.4 * pow( g, 0.84 ) * ( 1.0 + 2.5 * tmpf / ( 5.0 + tmpf ) );
  tmpf = pow( ( e_r - 1.0 ) / 13.0, 12.0 );
  Q_26 = 30.0 - 22.2 * ( tmpf / ( 1.0 + 3.0 * tmpf ) ) - Q_29;
  tmpf = ( e_r - 1.0 ) * ( e_r - 1.0 );
  Q_25 = ( 0.3 * f_n * f_n / ( 10.0 + f_n * f_n ) ) * ( 1.0 + 2.333 * tmpf / ( 5.0 + tmpf ) );
  Q_24 = 2.506 * Q_28 * pow( u, 0.894 ) * pow( ( 1.0 + 1.3 * u ) * f_n / 99.25, 4.29 )
  / ( 3.575 + pow( u, 0.894 ) );
  Q_23 = 1.0
  + 0.005 * f_n * Q_27
  / ( ( 1.0 + 0.812 * pow( f_n / 15.0, 1.9 ) ) * ( 1.0 + 0.025 * u * u ) );
  Q_22 = 0.925 * pow( f_n / Q_26, 1.536 ) / ( 1.0 + 0.3 * pow( f_n / 30.0, 1.536 ) );
 
  /* odd-mode frequency-dependent characteristic impedances */
  m_parameters[Z0_O_PRM] =
  Z0_single_f
  + ( Z0_o_0 * pow( e_r_eff_o_f / e_r_eff_o_0, Q_22 ) - Z0_single_f * Q_23 )
  / ( 1.0 + Q_24 + pow( 0.46 * g, 2.2 ) * Q_25 );
 }

References aux_ms, EPSILONR_PRM, TRANSLINE::er_eff, MICROSTRIP::er_eff_0, er_eff_o, er_eff_o_0, FREQUENCY_PRM, H_PRM, TRANSLINE::m_parameters, PHYS_S_PRM, PHYS_WIDTH_PRM, Z0_e_0, Z0_E_PRM, Z0_o_0, Z0_O_PRM, and Z0_PRM.

Referenced by calcAnalyze().

◆ Z0_even_odd()

void C_MICROSTRIP::Z0_even_odd ( )

private

Z0_even_odd() - compute the static even- and odd-mode static impedances.

References: Manfred Kirschning and Rolf Jansen, "Accurate Wide-Range Design Equations for the Frequency-Dependent Characteristic of Parallel Coupled Microstrip Lines", IEEE Trans. MTT, vol. 32, no. 1, Jan. 1984

Definition at line 374 of file c_microstrip.cpp.

 {
  double er_eff, h2, u_t_e, u_t_o, g, h2h;
  double Q_1, Q_2, Q_3, Q_4, Q_5, Q_6, Q_7, Q_8, Q_9, Q_10;
  double delta_Z0_e_0, delta_Z0_o_0, Z0_single, er_eff_single;
 
  h2 = m_parameters[H_T_PRM];
  u_t_e = w_t_e / m_parameters[H_PRM]; /* normalized even-mode line width */
  u_t_o = w_t_o / m_parameters[H_PRM]; /* normalized odd-mode line width */
  g = m_parameters[PHYS_S_PRM] / m_parameters[H_PRM]; /* normalized line spacing */
  h2h = h2 / m_parameters[H_PRM]; /* normalized cover height */
 
  Z0_single = aux_ms->Z0_0;
  er_eff_single = aux_ms->er_eff_0;
 
  /* even-mode */
  er_eff = er_eff_e_0;
  Q_1 = 0.8695 * pow( u_t_e, 0.194 );
  Q_2 = 1.0 + 0.7519 * g + 0.189 * pow( g, 2.31 );
  Q_3 = 0.1975 + pow( ( 16.6 + pow( ( 8.4 / g ), 6.0 ) ), -0.387 )
  + log( pow( g, 10.0 ) / ( 1.0 + pow( g / 3.4, 10.0 ) ) ) / 241.0;
  Q_4 = 2.0 * Q_1
  / ( Q_2 * ( exp( -g ) * pow( u_t_e, Q_3 ) + ( 2.0 - exp( -g ) ) * pow( u_t_e, -Q_3 ) ) );
  /* static even-mode impedance */
  Z0_e_0 = Z0_single * sqrt( er_eff_single / er_eff )
  / ( 1.0 - sqrt( er_eff_single ) * Q_4 * Z0_single / ZF0 );
  /* correction for cover */
  delta_Z0_e_0 = delta_Z0_even_cover( g, u_t_e, h2h ) / sqrt( er_eff );
 
  Z0_e_0 = Z0_e_0 - delta_Z0_e_0;
 
  /* odd-mode */
  er_eff = er_eff_o_0;
  Q_5 = 1.794 + 1.14 * log( 1.0 + 0.638 / ( g + 0.517 * pow( g, 2.43 ) ) );
  Q_6 = 0.2305 + log( pow( g, 10.0 ) / ( 1.0 + pow( g / 5.8, 10.0 ) ) ) / 281.3
  + log( 1.0 + 0.598 * pow( g, 1.154 ) ) / 5.1;
  Q_7 = ( 10.0 + 190.0 * g * g ) / ( 1.0 + 82.3 * g * g * g );
  Q_8 = exp( -6.5 - 0.95 * log( g ) - pow( g / 0.15, 5.0 ) );
  Q_9 = log( Q_7 ) * ( Q_8 + 1.0 / 16.5 );
  Q_10 = ( Q_2 * Q_4 - Q_5 * exp( log( u_t_o ) * Q_6 * pow( u_t_o, -Q_9 ) ) ) / Q_2;
 
  /* static odd-mode impedance */
  Z0_o_0 = Z0_single * sqrt( er_eff_single / er_eff )
  / ( 1.0 - sqrt( er_eff_single ) * Q_10 * Z0_single / ZF0 );
  /* correction for cover */
  delta_Z0_o_0 = delta_Z0_odd_cover( g, u_t_o, h2h ) / sqrt( er_eff );
 
  Z0_o_0 = Z0_o_0 - delta_Z0_o_0;
 }

References aux_ms, delta_Z0_even_cover(), delta_Z0_odd_cover(), TRANSLINE::er_eff, MICROSTRIP::er_eff_0, er_eff_e_0, er_eff_o_0, H_PRM, H_T_PRM, TRANSLINE::m_parameters, PHYS_S_PRM, w_t_e, w_t_o, MICROSTRIP::Z0_0, Z0_e_0, Z0_o_0, and ZF0.

Referenced by calcAnalyze().

Member Data Documentation

◆ ang_l

double TRANSLINE::ang_l

protectedinherited

Definition at line 134 of file transline.h.

Referenced by TRANSLINE::TRANSLINE().

◆ ang_l_e

double C_MICROSTRIP::ang_l_e

private

Definition at line 54 of file c_microstrip.h.

Referenced by calcSynthesize(), line_angle(), and showAnalyze().

◆ ang_l_o

double C_MICROSTRIP::ang_l_o

private

Definition at line 55 of file c_microstrip.h.

Referenced by calcSynthesize(), line_angle(), and showAnalyze().

◆ atten_cond_e

double C_MICROSTRIP::atten_cond_e

private

Definition at line 62 of file c_microstrip.h.

Referenced by conductor_losses(), and show_results().

◆ atten_cond_o

double C_MICROSTRIP::atten_cond_o

private

Definition at line 64 of file c_microstrip.h.

Referenced by conductor_losses(), and show_results().

◆ atten_dielectric_e

double C_MICROSTRIP::atten_dielectric_e

private

Definition at line 61 of file c_microstrip.h.

Referenced by dielectric_losses(), and show_results().

◆ atten_dielectric_o

double C_MICROSTRIP::atten_dielectric_o

private

Definition at line 63 of file c_microstrip.h.

Referenced by dielectric_losses(), and show_results().

◆ aux_ms

MICROSTRIP* C_MICROSTRIP::aux_ms

private

Definition at line 96 of file c_microstrip.h.

Referenced by compute_single_line(), er_eff_static(), Z0_dispersion(), Z0_even_odd(), and ~C_MICROSTRIP().

◆ c_e

double C_MICROSTRIP::c_e

private

Definition at line 52 of file c_microstrip.h.

◆ c_o

double C_MICROSTRIP::c_o

private

Definition at line 53 of file c_microstrip.h.

◆ er_eff

double TRANSLINE::er_eff

protectedinherited

Definition at line 133 of file transline.h.

Referenced by MICROSTRIP::calcSynthesize(), MICROSTRIP::dispersion(), er_eff_freq(), MICROSTRIP::line_angle(), MICROSTRIP::show_results(), TRANSLINE::TRANSLINE(), Z0_dispersion(), and Z0_even_odd().

◆ er_eff_e

double C_MICROSTRIP::er_eff_e

private

Definition at line 56 of file c_microstrip.h.

Referenced by calcSynthesize(), er_eff_freq(), line_angle(), and show_results().

◆ er_eff_e_0

double C_MICROSTRIP::er_eff_e_0

private

Definition at line 58 of file c_microstrip.h.

Referenced by conductor_losses(), dielectric_losses(), er_eff_freq(), er_eff_static(), and Z0_even_odd().

◆ er_eff_o

double C_MICROSTRIP::er_eff_o

private

Definition at line 57 of file c_microstrip.h.

Referenced by calcSynthesize(), er_eff_freq(), line_angle(), show_results(), and Z0_dispersion().

◆ er_eff_o_0

double C_MICROSTRIP::er_eff_o_0

private

Definition at line 59 of file c_microstrip.h.

Referenced by conductor_losses(), dielectric_losses(), er_eff_freq(), er_eff_static(), Z0_dispersion(), and Z0_even_odd().

◆ errCol

KIGFX::COLOR4D TRANSLINE::errCol = KIGFX::COLOR4D( 1, 0.63, 0.63, 1 )

inherited

Definition at line 126 of file transline.h.

Referenced by TRANSLINE::setErrorLevel().

◆ h

double C_MICROSTRIP::h

private

Definition at line 38 of file c_microstrip.h.

◆ ht

double C_MICROSTRIP::ht

private

Definition at line 39 of file c_microstrip.h.

◆ l

double C_MICROSTRIP::l

private

Definition at line 45 of file c_microstrip.h.

◆ len

double TRANSLINE::len

protectedinherited

Definition at line 132 of file transline.h.

Referenced by TRANSLINE::TRANSLINE().

◆ m_Name

const char* TRANSLINE::m_Name

inherited

Definition at line 84 of file transline.h.

Referenced by C_MICROSTRIP(), COAX::COAX(), COPLANAR::COPLANAR(), GROUNDEDCOPLANAR::GROUNDEDCOPLANAR(), MICROSTRIP::MICROSTRIP(), TRANSLINE_IDENT::ReadConfig(), RECTWAVEGUIDE::RECTWAVEGUIDE(), STRIPLINE::STRIPLINE(), TRANSLINE::TRANSLINE(), TWISTEDPAIR::TWISTEDPAIR(), and TRANSLINE_IDENT::WriteConfig().

◆ m_parameters

double TRANSLINE::m_parameters[EXTRA_PRMS_COUNT]

protectedinherited

Definition at line 131 of file transline.h.

Referenced by RECTWAVEGUIDE::alphac(), COAX::alphac_coax(), RECTWAVEGUIDE::alphad(), COAX::alphad_coax(), MICROSTRIP::attenuation(), attenuation(), TWISTEDPAIR::calcAnalyze(), COAX::calcAnalyze(), STRIPLINE::calcAnalyze(), COPLANAR::calcAnalyze(), RECTWAVEGUIDE::calcAnalyze(), TWISTEDPAIR::calcSynthesize(), COPLANAR::calcSynthesize(), COAX::calcSynthesize(), STRIPLINE::calcSynthesize(), RECTWAVEGUIDE::calcSynthesize(), MICROSTRIP::calcSynthesize(), calcSynthesize(), TRANSLINE::checkProperties(), compute_single_line(), MICROSTRIP::conductor_losses(), conductor_losses(), delta_u_thickness(), MICROSTRIP::dielectric_losses(), dielectric_losses(), MICROSTRIP::dispersion(), er_eff_freq(), er_eff_static(), RECTWAVEGUIDE::fc(), RECTWAVEGUIDE::get_rectwaveguide_comp(), RECTWAVEGUIDE::get_rectwaveguide_elec(), RECTWAVEGUIDE::get_rectwaveguide_phys(), RECTWAVEGUIDE::get_rectwaveguide_sub(), TRANSLINE::getProperties(), TRANSLINE::Init(), RECTWAVEGUIDE::kc_square(), RECTWAVEGUIDE::kval_square(), line_angle(), MICROSTRIP::line_angle(), STRIPLINE::lineImpedance(), MICROSTRIP::microstrip_Z0(), TRANSLINE::minimizeZ0Error1D(), MICROSTRIP::mur_eff_ms(), TWISTEDPAIR::show_results(), STRIPLINE::show_results(), COAX::show_results(), COPLANAR::show_results(), RECTWAVEGUIDE::show_results(), MICROSTRIP::show_results(), show_results(), TWISTEDPAIR::showAnalyze(), COAX::showAnalyze(), STRIPLINE::showAnalyze(), COPLANAR::showAnalyze(), RECTWAVEGUIDE::showAnalyze(), MICROSTRIP::showAnalyze(), showAnalyze(), STRIPLINE::showSynthesize(), TWISTEDPAIR::showSynthesize(), COAX::showSynthesize(), COPLANAR::showSynthesize(), RECTWAVEGUIDE::showSynthesize(), MICROSTRIP::showSynthesize(), showSynthesize(), TRANSLINE::skin_depth(), syn_fun(), MICROSTRIP::synth_width(), synth_width(), TRANSLINE::TRANSLINE(), Z0_dispersion(), and Z0_even_odd().

◆ okCol

KIGFX::COLOR4D TRANSLINE::okCol = KIGFX::COLOR4D( 1, 1, 1, 1 )

inherited

Definition at line 128 of file transline.h.

Referenced by TRANSLINE::Init(), and TRANSLINE::setErrorLevel().

◆ rough

double C_MICROSTRIP::rough

private

Definition at line 41 of file c_microstrip.h.

◆ s

double C_MICROSTRIP::s

private

Definition at line 46 of file c_microstrip.h.

◆ t

double C_MICROSTRIP::t

private

Definition at line 40 of file c_microstrip.h.

◆ w

double C_MICROSTRIP::w

private

Definition at line 42 of file c_microstrip.h.

◆ w_eff

double C_MICROSTRIP::w_eff

private

Definition at line 60 of file c_microstrip.h.

◆ w_t_e

double C_MICROSTRIP::w_t_e

private

Definition at line 43 of file c_microstrip.h.

Referenced by delta_u_thickness(), er_eff_static(), and Z0_even_odd().

◆ w_t_o

double C_MICROSTRIP::w_t_o

private

Definition at line 44 of file c_microstrip.h.

Referenced by delta_u_thickness(), er_eff_static(), and Z0_even_odd().

◆ warnCol

KIGFX::COLOR4D TRANSLINE::warnCol = KIGFX::COLOR4D( 1, 1, 0.57, 1 )

inherited

Definition at line 127 of file transline.h.

Referenced by TRANSLINE::setErrorLevel().

◆ Z0_e_0

double C_MICROSTRIP::Z0_e_0

private

Definition at line 47 of file c_microstrip.h.

Referenced by conductor_losses(), Z0_dispersion(), and Z0_even_odd().

◆ Z0_o_0

double C_MICROSTRIP::Z0_o_0

private

Definition at line 48 of file c_microstrip.h.

Referenced by conductor_losses(), diff_impedance(), Z0_dispersion(), and Z0_even_odd().

◆ Z0e

double C_MICROSTRIP::Z0e

private

Definition at line 50 of file c_microstrip.h.

◆ Z0o

double C_MICROSTRIP::Z0o

private

Definition at line 51 of file c_microstrip.h.

◆ Zdiff

double C_MICROSTRIP::Zdiff

private

Definition at line 49 of file c_microstrip.h.

Referenced by diff_impedance(), and show_results().

The documentation for this class was generated from the following files:

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ C_MICROSTRIP()

◆ ~C_MICROSTRIP()

Member Function Documentation

◆ analyze()

◆ attenuation()

◆ calc()

◆ calcAnalyze()

◆ calcSynthesize()

◆ checkProperties()

◆ compute_single_line()

◆ conductor_losses()

◆ delta_q_cover_even()

◆ delta_q_cover_odd()

◆ delta_u_thickness()

◆ delta_u_thickness_single()

◆ delta_Z0_even_cover()

◆ delta_Z0_odd_cover()

◆ dielectric_losses()

◆ diff_impedance()

◆ ellipk()

◆ ellipke()

◆ er_eff_freq()

◆ er_eff_static()

◆ filling_factor_even()

◆ filling_factor_odd()

◆ getProperties()

◆ getProperty()

◆ Init()

◆ isSelected()

◆ line_angle()

◆ minimizeZ0Error1D()

◆ setErrorLevel()

◆ setProperty()

◆ setResult() [1/2]

◆ setResult() [2/2]

◆ show_results()

◆ showAnalyze()

◆ showSynthesize()

◆ skin_depth()

◆ syn_err_fun()

◆ syn_fun()

◆ synth_width()

◆ synthesize()

◆ Z0_dispersion()

◆ Z0_even_odd()

Member Data Documentation

◆ ang_l

◆ ang_l_e

◆ ang_l_o

◆ atten_cond_e

◆ atten_cond_o

◆ atten_dielectric_e

◆ atten_dielectric_o

◆ aux_ms

◆ c_e

◆ c_o

◆ er_eff

◆ er_eff_e

◆ er_eff_e_0

◆ er_eff_o

◆ er_eff_o_0

◆ errCol

◆ h

◆ ht

◆ l

◆ len

◆ m_Name

◆ m_parameters

◆ okCol

◆ rough

◆ s

◆ t