#include <coupled_microstrip.h>

Inheritance diagram for COUPLED_MICROSTRIP:

Public Member Functions
	COUPLED_MICROSTRIP ()

void	Analyse () override
	Analyse track geometry parameters to output Z0 and Ang_L.

bool	Synthesize (SYNTHESIZE_OPTS aOpts) override
	Synthesis track geometry parameters to match given Z0.

void	SetParameter (const TRANSLINE_PARAMETERS aParam, const double aValue)
	Sets the given calculation property.

double	GetParameter (const TRANSLINE_PARAMETERS aParam) const
	Gets the given calculation property.

double &	GetParameterRef (const TRANSLINE_PARAMETERS aParam)
	Adds a constant to the given parameter.

std::unordered_map< TRANSLINE_PARAMETERS, std::pair< double, TRANSLINE_STATUS > > &	GetAnalysisResults ()
	Gets the output parameters following analysis.

std::unordered_map< TRANSLINE_PARAMETERS, std::pair< double, TRANSLINE_STATUS > > &	GetSynthesisResults ()
	Gets the output parameters following synthesis.

Protected Member Functions
void	InitProperties (const std::initializer_list< TRANSLINE_PARAMETERS > &aParams)
	Initialises the properties used (as inputs or outputs) by the calculation.

void	SetAnalysisResult (TRANSLINE_PARAMETERS aParam, const double aValue, const TRANSLINE_STATUS aStatus=TRANSLINE_STATUS::OK)
	Sets an analysis result.

void	SetSynthesisResult (TRANSLINE_PARAMETERS aParam, const double aValue, const TRANSLINE_STATUS aStatus=TRANSLINE_STATUS::OK)
	Sets a synthesis result.

bool	MinimiseZ0Error1D (TRANSLINE_PARAMETERS aOptimise, TRANSLINE_PARAMETERS aMeasure)
	minimizeZ0Error1D

bool	MinimiseZ0Error2D (TRANSLINE_PARAMETERS aParam1, TRANSLINE_PARAMETERS aParam2)
	minimizeZ0Error2D

double	SkinDepth () const
	Calculate skin depth.

Static Protected Member Functions
static double	UnitPropagationDelay (double aEpsilonEff)
	Calculates the unit propagation delay (ps/cm) for the given effective permittivity.

static std::pair< double, double >	EllipticIntegral (double arg)
	Computes the complete elliptic integral of first kind K() and the second kind E() using the arithmetic-geometric mean algorithm (AGM) by Abramowitz and Stegun.

static double	coth (const double x)
	Calculates cosh of the given argument.

static double	sech (const double x)
	Calculates sech of the given argument.

Protected Attributes
std::unordered_map< TRANSLINE_PARAMETERS, double >	m_parameters
	All input and output properties used by the calculation.

std::unordered_map< TRANSLINE_PARAMETERS, std::pair< double, TRANSLINE_STATUS > >	m_analysisStatus
	Analysis results.

std::unordered_map< TRANSLINE_PARAMETERS, std::pair< double, TRANSLINE_STATUS > >	m_synthesisStatus
	Synthesis results.

Static Protected Attributes
static constexpr double	m_maxError { 0.000001 }
	The maximum error for Z0 optimisations.

Private Types
using	TCP = TRANSLINE_PARAMETERS

Private Member Functions
void	SetAnalysisResults () override
	Sets the output values and status following analysis.

void	SetSynthesisResults () override
	Sets the output values and status following synthesis.

double	delta_u_thickness_single (double, double)
	Computes the thickness effect on normalized width for a single microstrip line.

void	delta_u_thickness ()
	Compute the thickness effect on normalized width for coupled microstrips.

void	compute_single_line ()
	Computes initial parameters for a single microstrip.

double	filling_factor_even (double, double, double)
	Compute the filling factor for the coupled microstrip even mode without cover and zero conductor thickness.

double	filling_factor_odd (double, double, double)
	Compute the filling factor for the coupled microstrip odd mode without cover and zero conductor thickness.

double	delta_q_cover_even (double)
	Compute the cover effect on filling factor for the even mode.

double	delta_q_cover_odd (double)
	Compute the cover effect on filling factor for the odd mode.

void	er_eff_static ()
	Compute the static effective dielectric constants.

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

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

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

void	er_eff_freq ()
	Compute er_eff as a function of frequency.

void	conductor_losses ()
	Compute conductor losses per unit length.

void	dielectric_losses ()
	Compute dielectric losses per unit length.

void	attenuation ()
	Compute attenuation.

void	line_angle ()
	Compute electrical length in radians.

void	diff_impedance ()
	Calculate the differential impedance of the coupled microstrips.

void	Z0_dispersion ()
	Calculate frequency dependency of characteristic impedances.

void	syn_err_fun (double , double , double, double, double, double, double)
	Error function to minimise when synthesising trace geometry.

void	synth_width ()
	Calculate widths given Z0 and e_r.

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

Private Attributes
MICROSTRIP	m_aux_microstrip
	Runs intermediate single-track calculations.

double	w_t_e { 0.0 }

double	w_t_o { 0.0 }

double	er_eff_e_0 { 0.0 }

double	er_eff_o_0 { 0.0 }

double	Z0_e_0 { 0.0 }

double	Z0_o_0 { 0.0 }

double	er_eff_e { 0.0 }

double	er_eff_o { 0.0 }

double	prop_delay_e { 0.0 }

double	prop_delay_o { 0.0 }

double	atten_cond_e { 0.0 }

double	atten_cond_o { 0.0 }

double	atten_dielectric_e { 0.0 }

double	atten_dielectric_o { 0.0 }

double	ang_l_e { 0.0 }

double	ang_l_o { 0.0 }

double	Zdiff { 0.0 }

Detailed Description

Definition at line 32 of file coupled_microstrip.h.

Member Typedef Documentation

◆ TCP

using COUPLED_MICROSTRIP::TCP = TRANSLINE_PARAMETERS

private

Definition at line 34 of file coupled_microstrip.h.

Constructor & Destructor Documentation

◆ COUPLED_MICROSTRIP()

COUPLED_MICROSTRIP::COUPLED_MICROSTRIP ( )

inline

Definition at line 37 of file coupled_microstrip.h.

References ANG_L, ATTEN_COND_EVEN, ATTEN_COND_ODD, ATTEN_DILECTRIC_EVEN, ATTEN_DILECTRIC_ODD, EPSILON_EFF_EVEN, EPSILON_EFF_ODD, EPSILONR, FREQUENCY, H, H_T, MURC, PHYS_LEN, PHYS_S, PHYS_WIDTH, ROUGH, SIGMA, SKIN_DEPTH, T, TAND, TRANSLINE_CALCULATION_BASE::TRANSLINE_CALCULATION_BASE(), UNIT_PROP_DELAY_EVEN, UNIT_PROP_DELAY_ODD, Z0_E, Z0_O, and Z_DIFF.

Member Function Documentation

◆ Analyse()

void COUPLED_MICROSTRIP::Analyse ( )

overridevirtual

Analyse track geometry parameters to output Z0 and Ang_L.

Implements TRANSLINE_CALCULATION_BASE.

Definition at line 32 of file coupled_microstrip.cpp.

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

Referenced by syn_fun(), and Synthesize().

◆ attenuation()

void COUPLED_MICROSTRIP::attenuation ( )

private

Compute attenuation.

Definition at line 595 of file coupled_microstrip.cpp.

References conductor_losses(), dielectric_losses(), TRANSLINE_CALCULATION_BASE::SetParameter(), SKIN_DEPTH, and TRANSLINE_CALCULATION_BASE::SkinDepth().

Referenced by Analyse().

◆ compute_single_line()

void COUPLED_MICROSTRIP::compute_single_line ( )

private

Computes initial parameters for a single microstrip.

Definition at line 267 of file coupled_microstrip.cpp.

References EPSILONR, FREQUENCY, TRANSLINE_CALCULATION_BASE::GetParameter(), H, H_T, m_aux_microstrip, MURC, PHYS_WIDTH, and T.

Referenced by er_eff_static().

◆ conductor_losses()

void COUPLED_MICROSTRIP::conductor_losses ( )

private

Compute conductor losses per unit length.

Definition at line 532 of file coupled_microstrip.cpp.

References atten_cond_e, atten_cond_o, TRANSLINE_CALCULATIONS::C0, delta, er_eff_e_0, er_eff_o_0, FREQUENCY, TRANSLINE_CALCULATION_BASE::GetParameter(), M_PI, PHYS_LEN, PHYS_WIDTH, ROUGH, SIGMA, SKIN_DEPTH, Z0_e_0, Z0_o_0, and TRANSLINE_CALCULATIONS::ZF0.

Referenced by attenuation().

◆ coth()

static double TRANSLINE_CALCULATION_BASE::coth ( const double x )

inlinestaticprotectedinherited

Calculates cosh of the given argument.

Definition at line 211 of file transline_calculation_base.h.

Referenced by COUPLED_STRIPLINE::calcZeroThicknessCoupledImpedances().

◆ delta_q_cover_even()

double COUPLED_MICROSTRIP::delta_q_cover_even ( double h2h )

private

Compute the cover effect on filling factor for the even mode.

Definition at line 314 of file coupled_microstrip.cpp.

Referenced by er_eff_static().

◆ delta_q_cover_odd()

double COUPLED_MICROSTRIP::delta_q_cover_odd ( double h2h )

private

Compute the cover effect on filling factor for the odd mode.

Definition at line 327 of file coupled_microstrip.cpp.

Referenced by er_eff_static().

◆ delta_u_thickness()

void COUPLED_MICROSTRIP::delta_u_thickness ( )

private

Compute the thickness effect on normalized width for coupled microstrips.

References: Rolf Jansen, "High-Speed Computation of Single and Coupled Microstrip Parameters Including Dispersion, High-Order Modes, Loss and Finite Strip Thickness", IEEE Trans. MTT, vol. 26, no. 2, pp. 75-82, Feb. 1978

Definition at line 238 of file coupled_microstrip.cpp.

References delta_u_thickness_single(), EPSILONR, TRANSLINE_CALCULATION_BASE::GetParameter(), H, PHYS_S, PHYS_WIDTH, T, w_t_e, and w_t_o.

Referenced by Analyse().

◆ delta_u_thickness_single()

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

private

Computes the thickness effect on normalized width for a single microstrip line.

References: H. A. Atwater, "Simplified Design Equations for Microstrip Line Parameters", Microwave Journal, pp. 109-115,November 1989.

Definition at line 210 of file coupled_microstrip.cpp.

References M_PI.

Referenced by delta_u_thickness().

◆ delta_Z0_even_cover()

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

private

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 387 of file coupled_microstrip.cpp.

References atanh(), D, F, and M_PI.

Referenced by Z0_even_odd().

◆ delta_Z0_odd_cover()

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

private

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 410 of file coupled_microstrip.cpp.

References G.

Referenced by Z0_even_odd().

◆ dielectric_losses()

void COUPLED_MICROSTRIP::dielectric_losses ( )

private

Compute dielectric losses per unit length.

Definition at line 576 of file coupled_microstrip.cpp.

References atten_dielectric_e, atten_dielectric_o, TRANSLINE_CALCULATIONS::C0, EPSILONR, er_eff_e_0, er_eff_o_0, FREQUENCY, TRANSLINE_CALCULATION_BASE::GetParameter(), M_PI, PHYS_LEN, and TAND.

Referenced by attenuation().

◆ diff_impedance()

void COUPLED_MICROSTRIP::diff_impedance ( )

private

Calculate the differential impedance of the coupled microstrips.

Definition at line 625 of file coupled_microstrip.cpp.

References Z0_o_0, and Zdiff.

Referenced by Analyse().

◆ EllipticIntegral()

std::pair< double, double > TRANSLINE_CALCULATION_BASE::EllipticIntegral ( double arg )

staticprotectedinherited

Computes the complete elliptic integral of first kind K() and the second kind E() using the arithmetic-geometric mean algorithm (AGM) by Abramowitz and Stegun.

Returns: std::pair<K, E> where K = first kind integral, E = second kind integral

Definition at line 159 of file transline_calculation_base.cpp.

References INFINITY, M_PI_2, and NR_EPSI.

Referenced by COUPLED_STRIPLINE::calcSingleStripImpedances(), and COUPLED_STRIPLINE::calcZeroThicknessCoupledImpedances().

◆ er_eff_freq()

void COUPLED_MICROSTRIP::er_eff_freq ( )

private

Compute er_eff as a function of frequency.

Definition at line 486 of file coupled_microstrip.cpp.

References EPSILONR, er_eff_e, er_eff_e_0, er_eff_o, er_eff_o_0, FREQUENCY, TRANSLINE_CALCULATION_BASE::GetParameter(), H, PHYS_S, PHYS_WIDTH, prop_delay_e, prop_delay_o, and TRANSLINE_CALCULATION_BASE::UnitPropagationDelay().

Referenced by Analyse().

◆ er_eff_static()

void COUPLED_MICROSTRIP::er_eff_static ( )

private

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 340 of file coupled_microstrip.cpp.

References compute_single_line(), delta_q_cover_even(), delta_q_cover_odd(), EPSILONR, er_eff_e_0, er_eff_o_0, filling_factor_even(), filling_factor_odd(), TRANSLINE_CALCULATION_BASE::GetParameter(), H, H_T, m_aux_microstrip, PHYS_S, T, w_t_e, and w_t_o.

Referenced by Analyse().

◆ filling_factor_even()

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

private

Compute the filling factor for the coupled microstrip even mode without cover and zero conductor thickness.

Definition at line 284 of file coupled_microstrip.cpp.

References v3, and v4.

Referenced by er_eff_static().

◆ filling_factor_odd()

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

private

Compute the filling factor for the coupled microstrip odd mode without cover and zero conductor thickness.

Definition at line 301 of file coupled_microstrip.cpp.

Referenced by er_eff_static().

◆ GetAnalysisResults()

std::unordered_map< TRANSLINE_PARAMETERS, std::pair< double, TRANSLINE_STATUS > > & TRANSLINE_CALCULATION_BASE::GetAnalysisResults ( )

inherited

Gets the output parameters following analysis.

Definition at line 36 of file transline_calculation_base.cpp.

References m_analysisStatus, and SetAnalysisResults().

◆ GetParameter()

double TRANSLINE_CALCULATION_BASE::GetParameter ( const TRANSLINE_PARAMETERS aParam ) const

inlineinherited

Gets the given calculation property.

Definition at line 121 of file transline_calculation_base.h.

References m_parameters.

◆ GetParameterRef()

double & TRANSLINE_CALCULATION_BASE::GetParameterRef ( const TRANSLINE_PARAMETERS aParam )

inlineinherited

Adds a constant to the given parameter.

Definition at line 124 of file transline_calculation_base.h.

References m_parameters.

Referenced by MinimiseZ0Error1D().

◆ GetSynthesisResults()

std::unordered_map< TRANSLINE_PARAMETERS, std::pair< double, TRANSLINE_STATUS > > & TRANSLINE_CALCULATION_BASE::GetSynthesisResults ( )

inherited

Gets the output parameters following synthesis.

Definition at line 44 of file transline_calculation_base.cpp.

References m_synthesisStatus, and SetSynthesisResults().

◆ InitProperties()

void TRANSLINE_CALCULATION_BASE::InitProperties ( const std::initializer_list< TRANSLINE_PARAMETERS > & aParams )

protectedinherited

Initialises the properties used (as inputs or outputs) by the calculation.

Definition at line 28 of file transline_calculation_base.cpp.

References m_parameters.

Referenced by TRANSLINE_CALCULATION_BASE().

◆ line_angle()

void COUPLED_MICROSTRIP::line_angle ( )

private

Compute electrical length in radians.

Definition at line 603 of file coupled_microstrip.cpp.

References ang_l_e, ang_l_o, TRANSLINE_CALCULATIONS::C0, er_eff_e, er_eff_o, FREQUENCY, TRANSLINE_CALCULATION_BASE::GetParameter(), M_PI, and PHYS_LEN.

Referenced by Analyse().

◆ MinimiseZ0Error1D()

bool TRANSLINE_CALCULATION_BASE::MinimiseZ0Error1D	(	TRANSLINE_PARAMETERS	aOptimise,
		TRANSLINE_PARAMETERS	aMeasure )

protectedinherited

minimizeZ0Error1D

Tries to find a parameter that minimizes the error on Z0. This function only works with a single parameter. Calls Analyse several times until the error is acceptable.

This function does not change Z0 / Angl_L

Parameters

aOptimise	Parameter to optimise
aMeasure	The parameter to measure / optimise against

Returns: true if error < MAX_ERROR, otherwise false

Definition at line 65 of file transline_calculation_base.cpp.

References Analyse(), ANG_L, TRANSLINE_CALCULATIONS::C0, EPSILON_EFF, FREQUENCY, GetParameter(), GetParameterRef(), m_maxError, M_PI, PHYS_LEN, and SetParameter().

Referenced by COUPLED_MICROSTRIP::Synthesize(), COUPLED_STRIPLINE::Synthesize(), MICROSTRIP::Synthesize(), and STRIPLINE::Synthesize().

◆ MinimiseZ0Error2D()

bool TRANSLINE_CALCULATION_BASE::MinimiseZ0Error2D	(	TRANSLINE_PARAMETERS	aParam1,
		TRANSLINE_PARAMETERS	aParam2 )

protectedinherited

minimizeZ0Error2D

Tries to find the parameters that minimizes the error on Z_Diff. This function only works with two parameters. Calls Analyse several times until the error is acceptable. While the error is unacceptable, changes slightly the parameter.

This function does not change Z0 / Angl_L

Parameters

aParam1	First parameter to optimise
aParam2	Secpmd parameter to optimise

Returns: true if error < MAX_ERROR, otherwise false

◆ sech()

static double TRANSLINE_CALCULATION_BASE::sech ( const double x )

inlinestaticprotectedinherited

Calculates sech of the given argument.

Definition at line 214 of file transline_calculation_base.h.

Referenced by COUPLED_STRIPLINE::calcSingleStripImpedances().

◆ SetAnalysisResult()

void TRANSLINE_CALCULATION_BASE::SetAnalysisResult	(	TRANSLINE_PARAMETERS	aParam,
		const double	aValue,
		const TRANSLINE_STATUS	aStatus = TRANSLINE_STATUS::OK )

protectedinherited

Sets an analysis result.

Definition at line 51 of file transline_calculation_base.cpp.

References m_analysisStatus.

Referenced by COUPLED_MICROSTRIP::SetAnalysisResults(), COUPLED_STRIPLINE::SetAnalysisResults(), MICROSTRIP::SetAnalysisResults(), STRIPLINE::SetAnalysisResults(), and COUPLED_MICROSTRIP::SetSynthesisResults().

◆ SetAnalysisResults()

void COUPLED_MICROSTRIP::SetAnalysisResults ( )

overrideprivatevirtual

Sets the output values and status following analysis.

Implements TRANSLINE_CALCULATION_BASE.

Definition at line 138 of file coupled_microstrip.cpp.

References ANG_L, ang_l_e, ang_l_o, atten_cond_e, ATTEN_COND_EVEN, atten_cond_o, ATTEN_COND_ODD, atten_dielectric_e, atten_dielectric_o, ATTEN_DILECTRIC_EVEN, ATTEN_DILECTRIC_ODD, EPSILON_EFF_EVEN, EPSILON_EFF_ODD, er_eff_e, er_eff_o, TRANSLINE_CALCULATION_BASE::GetParameter(), OK, PHYS_LEN, PHYS_S, PHYS_WIDTH, prop_delay_e, prop_delay_o, TRANSLINE_CALCULATION_BASE::SetAnalysisResult(), SKIN_DEPTH, TS_ERROR, UNIT_PROP_DELAY_EVEN, UNIT_PROP_DELAY_ODD, WARNING, Z0_E, Z0_O, Z_DIFF, and Zdiff.

◆ SetParameter()

void TRANSLINE_CALCULATION_BASE::SetParameter	(	const TRANSLINE_PARAMETERS	aParam,
		const double	aValue )

inlineinherited

Sets the given calculation property.

Definition at line 118 of file transline_calculation_base.h.

References m_parameters.

Referenced by COUPLED_STRIPLINE::Analyse(), STRIPLINE::Analyse(), COUPLED_MICROSTRIP::attenuation(), MICROSTRIP::attenuation(), COUPLED_STRIPLINE::calcZ0EvenMode(), COUPLED_STRIPLINE::calcZ0OddMode(), MICROSTRIP::dispersion(), MICROSTRIP::line_angle(), MICROSTRIP::microstrip_Z0(), MinimiseZ0Error1D(), COUPLED_MICROSTRIP::syn_fun(), COUPLED_MICROSTRIP::synth_width(), COUPLED_MICROSTRIP::Synthesize(), COUPLED_STRIPLINE::Synthesize(), MICROSTRIP::Synthesize(), and COUPLED_MICROSTRIP::Z0_dispersion().

◆ SetSynthesisResult()

void TRANSLINE_CALCULATION_BASE::SetSynthesisResult	(	TRANSLINE_PARAMETERS	aParam,
		const double	aValue,
		const TRANSLINE_STATUS	aStatus = TRANSLINE_STATUS::OK )

protectedinherited

Sets a synthesis result.

Definition at line 58 of file transline_calculation_base.cpp.

References m_synthesisStatus.

Referenced by COUPLED_STRIPLINE::SetSynthesisResults(), MICROSTRIP::SetSynthesisResults(), and STRIPLINE::SetSynthesisResults().

◆ SetSynthesisResults()

void COUPLED_MICROSTRIP::SetSynthesisResults ( )

overrideprivatevirtual

Sets the output values and status following synthesis.

Implements TRANSLINE_CALCULATION_BASE.

Definition at line 174 of file coupled_microstrip.cpp.

References ANG_L, ang_l_e, ang_l_o, atten_cond_e, ATTEN_COND_EVEN, atten_cond_o, ATTEN_COND_ODD, atten_dielectric_e, atten_dielectric_o, ATTEN_DILECTRIC_EVEN, ATTEN_DILECTRIC_ODD, EPSILON_EFF_EVEN, EPSILON_EFF_ODD, er_eff_e, er_eff_o, TRANSLINE_CALCULATION_BASE::GetParameter(), OK, PHYS_LEN, PHYS_S, PHYS_WIDTH, prop_delay_e, prop_delay_o, TRANSLINE_CALCULATION_BASE::SetAnalysisResult(), SKIN_DEPTH, TS_ERROR, UNIT_PROP_DELAY_EVEN, UNIT_PROP_DELAY_ODD, WARNING, Z0_E, Z0_O, Z_DIFF, and Zdiff.

◆ SkinDepth()

double TRANSLINE_CALCULATION_BASE::SkinDepth ( ) const

protectedinherited

Calculate skin depth.

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

Definition at line 144 of file transline_calculation_base.cpp.

References FREQUENCY, GetParameter(), M_PI, TRANSLINE_CALCULATIONS::MU0, MURC, and SIGMA.

Referenced by COUPLED_STRIPLINE::Analyse(), STRIPLINE::Analyse(), COUPLED_MICROSTRIP::attenuation(), and MICROSTRIP::attenuation().

◆ syn_err_fun()

void COUPLED_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

Error function to minimise when synthesising trace geometry.

Definition at line 724 of file coupled_microstrip.cpp.

References acosh(), and M_PI.

Referenced by synth_width().

◆ syn_fun()

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

private

Definition at line 813 of file coupled_microstrip.cpp.

References Analyse(), TRANSLINE_CALCULATION_BASE::GetParameter(), H, PHYS_S, PHYS_WIDTH, TRANSLINE_CALCULATION_BASE::SetParameter(), Z0_E, and Z0_O.

Referenced by Synthesize().

◆ synth_width()

void COUPLED_MICROSTRIP::synth_width ( )

private

Calculate widths given Z0 and e_r.

From Akhtarzad S. et al., "The design of coupled microstrip lines", IEEE Trans. MTT-23, June 1975 and Hinton, J.H., "On design of coupled microstrip lines", IEEE Trans. MTT-28, March 1980

Definition at line 745 of file coupled_microstrip.cpp.

References acosh(), EPSILONR, TRANSLINE_CALCULATION_BASE::GetParameter(), H, M_PI, PHYS_S, PHYS_WIDTH, TRANSLINE_CALCULATION_BASE::SetParameter(), syn_err_fun(), Z0, Z0_E, and Z0_O.

Referenced by Synthesize().

◆ Synthesize()

bool COUPLED_MICROSTRIP::Synthesize ( SYNTHESIZE_OPTS aOpts )

overridevirtual

Synthesis track geometry parameters to match given Z0.

Implements TRANSLINE_CALCULATION_BASE.

Definition at line 60 of file coupled_microstrip.cpp.

References Analyse(), ANG_L, ang_l_e, ang_l_o, TRANSLINE_CALCULATIONS::C0, er_eff_e, er_eff_o, FIX_SPACING, FIX_WIDTH, FREQUENCY, TRANSLINE_CALCULATION_BASE::GetParameter(), H, M_PI, TRANSLINE_CALCULATION_BASE::MinimiseZ0Error1D(), PHYS_LEN, PHYS_S, PHYS_WIDTH, TRANSLINE_CALCULATION_BASE::SetParameter(), syn_fun(), synth_width(), Z0_E, and Z0_O.

◆ UnitPropagationDelay()

double TRANSLINE_CALCULATION_BASE::UnitPropagationDelay ( double aEpsilonEff )

staticprotectedinherited

Calculates the unit propagation delay (ps/cm) for the given effective permittivity.

@aEpsilonEff is the effective permittivity of the material

Definition at line 153 of file transline_calculation_base.cpp.

Referenced by STRIPLINE::Analyse(), COUPLED_STRIPLINE::calcDielectrics(), MICROSTRIP::dispersion(), and COUPLED_MICROSTRIP::er_eff_freq().

◆ Z0_dispersion()

void COUPLED_MICROSTRIP::Z0_dispersion ( )

private

Calculate frequency dependency of characteristic impedances.

Definition at line 639 of file coupled_microstrip.cpp.

References EPSILON_EFF, EPSILONR, er_eff_o, er_eff_o_0, FREQUENCY, TRANSLINE_CALCULATION_BASE::GetParameter(), H, m_aux_microstrip, PHYS_S, PHYS_WIDTH, TRANSLINE_CALCULATION_BASE::SetParameter(), Z0, Z0_E, Z0_e_0, Z0_O, and Z0_o_0.

Referenced by Analyse().

◆ Z0_even_odd()

void COUPLED_MICROSTRIP::Z0_even_odd ( )

private

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 438 of file coupled_microstrip.cpp.

References delta_Z0_even_cover(), delta_Z0_odd_cover(), er_eff_e_0, er_eff_o_0, TRANSLINE_CALCULATION_BASE::GetParameter(), H, H_T, m_aux_microstrip, PHYS_S, w_t_e, w_t_o, Z0_e_0, Z0_o_0, and TRANSLINE_CALCULATIONS::ZF0.

Referenced by Analyse().

Member Data Documentation

◆ ang_l_e

double COUPLED_MICROSTRIP::ang_l_e { 0.0 }

private

Definition at line 196 of file coupled_microstrip.h.

Referenced by line_angle(), SetAnalysisResults(), SetSynthesisResults(), and Synthesize().

◆ ang_l_o

double COUPLED_MICROSTRIP::ang_l_o { 0.0 }

private

Definition at line 197 of file coupled_microstrip.h.

Referenced by line_angle(), SetAnalysisResults(), SetSynthesisResults(), and Synthesize().

◆ atten_cond_e

double COUPLED_MICROSTRIP::atten_cond_e { 0.0 }

private

Definition at line 192 of file coupled_microstrip.h.

Referenced by conductor_losses(), SetAnalysisResults(), and SetSynthesisResults().

◆ atten_cond_o

double COUPLED_MICROSTRIP::atten_cond_o { 0.0 }

private

Definition at line 193 of file coupled_microstrip.h.

Referenced by conductor_losses(), SetAnalysisResults(), and SetSynthesisResults().

◆ atten_dielectric_e

double COUPLED_MICROSTRIP::atten_dielectric_e { 0.0 }

private

Definition at line 194 of file coupled_microstrip.h.

Referenced by dielectric_losses(), SetAnalysisResults(), and SetSynthesisResults().

◆ atten_dielectric_o

double COUPLED_MICROSTRIP::atten_dielectric_o { 0.0 }

private

Definition at line 195 of file coupled_microstrip.h.

Referenced by dielectric_losses(), SetAnalysisResults(), and SetSynthesisResults().

◆ er_eff_e

double COUPLED_MICROSTRIP::er_eff_e { 0.0 }

private

Definition at line 188 of file coupled_microstrip.h.

Referenced by er_eff_freq(), line_angle(), SetAnalysisResults(), SetSynthesisResults(), and Synthesize().

◆ er_eff_e_0

double COUPLED_MICROSTRIP::er_eff_e_0 { 0.0 }

private

Definition at line 184 of file coupled_microstrip.h.

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

◆ er_eff_o

double COUPLED_MICROSTRIP::er_eff_o { 0.0 }

private

Definition at line 189 of file coupled_microstrip.h.

Referenced by er_eff_freq(), line_angle(), SetAnalysisResults(), SetSynthesisResults(), Synthesize(), and Z0_dispersion().

◆ er_eff_o_0

double COUPLED_MICROSTRIP::er_eff_o_0 { 0.0 }

private

Definition at line 185 of file coupled_microstrip.h.

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

◆ m_analysisStatus

std::unordered_map<TRANSLINE_PARAMETERS, std::pair<double, TRANSLINE_STATUS> > TRANSLINE_CALCULATION_BASE::m_analysisStatus

protectedinherited

Analysis results.

Definition at line 220 of file transline_calculation_base.h.

Referenced by GetAnalysisResults(), and SetAnalysisResult().

◆ m_aux_microstrip

MICROSTRIP COUPLED_MICROSTRIP::m_aux_microstrip

private

Runs intermediate single-track calculations.

Definition at line 180 of file coupled_microstrip.h.

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

◆ m_maxError

double TRANSLINE_CALCULATION_BASE::m_maxError { 0.000001 }

staticconstexprprotectedinherited

The maximum error for Z0 optimisations.

Definition at line 226 of file transline_calculation_base.h.

Referenced by MinimiseZ0Error1D().

◆ m_parameters

std::unordered_map<TRANSLINE_PARAMETERS, double> TRANSLINE_CALCULATION_BASE::m_parameters

protectedinherited

All input and output properties used by the calculation.

Definition at line 217 of file transline_calculation_base.h.

Referenced by GetParameter(), GetParameterRef(), InitProperties(), and SetParameter().

◆ m_synthesisStatus

std::unordered_map<TRANSLINE_PARAMETERS, std::pair<double, TRANSLINE_STATUS> > TRANSLINE_CALCULATION_BASE::m_synthesisStatus

protectedinherited

Synthesis results.

Definition at line 223 of file transline_calculation_base.h.

Referenced by GetSynthesisResults(), and SetSynthesisResult().

◆ prop_delay_e

double COUPLED_MICROSTRIP::prop_delay_e { 0.0 }

private

Definition at line 190 of file coupled_microstrip.h.

Referenced by er_eff_freq(), SetAnalysisResults(), and SetSynthesisResults().

◆ prop_delay_o

double COUPLED_MICROSTRIP::prop_delay_o { 0.0 }

private

Definition at line 191 of file coupled_microstrip.h.

Referenced by er_eff_freq(), SetAnalysisResults(), and SetSynthesisResults().

◆ w_t_e

double COUPLED_MICROSTRIP::w_t_e { 0.0 }

private

Definition at line 182 of file coupled_microstrip.h.

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

◆ w_t_o

double COUPLED_MICROSTRIP::w_t_o { 0.0 }

private

Definition at line 183 of file coupled_microstrip.h.

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

◆ Z0_e_0

double COUPLED_MICROSTRIP::Z0_e_0 { 0.0 }

private

Definition at line 186 of file coupled_microstrip.h.

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

◆ Z0_o_0

double COUPLED_MICROSTRIP::Z0_o_0 { 0.0 }

private

Definition at line 187 of file coupled_microstrip.h.

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

◆ Zdiff

double COUPLED_MICROSTRIP::Zdiff { 0.0 }

private

Definition at line 198 of file coupled_microstrip.h.

Referenced by diff_impedance(), SetAnalysisResults(), and SetSynthesisResults().

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

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Static Protected Attributes

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ TCP

Constructor & Destructor Documentation

◆ COUPLED_MICROSTRIP()

Member Function Documentation

◆ Analyse()

◆ attenuation()

◆ compute_single_line()

◆ conductor_losses()

◆ coth()

◆ 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()

◆ EllipticIntegral()

◆ er_eff_freq()

◆ er_eff_static()

◆ filling_factor_even()

◆ filling_factor_odd()

◆ GetAnalysisResults()

◆ GetParameter()

◆ GetParameterRef()

◆ GetSynthesisResults()

◆ InitProperties()

◆ line_angle()

◆ MinimiseZ0Error1D()

◆ MinimiseZ0Error2D()

◆ sech()

◆ SetAnalysisResult()

◆ SetAnalysisResults()

◆ SetParameter()

◆ SetSynthesisResult()

◆ SetSynthesisResults()

◆ SkinDepth()

◆ syn_err_fun()

◆ syn_fun()

◆ synth_width()

◆ Synthesize()

◆ UnitPropagationDelay()

◆ Z0_dispersion()

◆ Z0_even_odd()

Member Data Documentation

◆ ang_l_e

◆ ang_l_o

◆ atten_cond_e

◆ atten_cond_o

◆ atten_dielectric_e

◆ atten_dielectric_o

◆ er_eff_e

◆ er_eff_e_0

◆ er_eff_o

◆ er_eff_o_0

◆ m_analysisStatus

◆ m_aux_microstrip

◆ m_maxError

◆ m_parameters

◆ m_synthesisStatus

◆ prop_delay_e

◆ prop_delay_o

◆ w_t_e

◆ w_t_o

◆ Z0_e_0

◆ Z0_o_0

◆ Zdiff