LCBandpassMatch (Bandpass Match)

Symbol

Summary

A bandpass matching network provides a bandpass frequency response between the input (pin 1) and output (pin 2) ports. The source or load terminations can be specified using either a lumped component approximation, a frequency independent complex impedance, or a Touchstone format S-parameter file. Analytic and Real Frequency synthesis methods are both possible. The number of reactive components (N) is approximate due to potential component absorption.

Parameters

Name	Description	Unit	Default
Fp1	Frequency at lower passband edge	GHz	1
Fp2	Frequency at upper passband edge	GHz	2
SynthesisType	Synthesis procedure, Analytic or Real Frequency	None	Analytic
GainChange	Linear gain change over passband (can be negative)	dB	0
N	Network order	None	3
SourceType	Type of source impedance	None	Resistive
Rg	Source resistance	Ohms	50
Lg	Source inductance	nH	1
Cg	Source capacitance	pF	1
Zg	Source impedance	Ohms	50+j×50
SourceFile	Source S-parameter file name	None	ZSource.s1p
SourceFileSparm	Source S-parameter	None	"S(1,1)"
SourceImpType	Complex source impedance interpretation	None	Source Impedance
LoadType	Type of load impedance	None	Series RLC
RL	Load resistance	Ohms	50
LL	Load inductance	nH	1
CL	Load capacitance	pF	1
ZL	Load impedance	Ohms	100-j*100
LoadFile	Load S-parameter file name	None	ZLoad.s1p
LoadFileSparm	Load S-parameter	None	"S(1,1)"
LoadImpType	Complex load impedance interpretation	None	Load Impedance

Palette

Filter DG - All Networks

Available Automated-Assistants

Matching Assistant, Simulation Assistant, Yield Assistant, Display Assistant

Matching Assistant Usage

For general information, refer to Matching Assistant.Network order results in approximately 2×N elements, although this varies due to component absorption as well as required network transformations.

Simulation Assistant Usage

For general information, refer to Simulation Assistant.

Yield Assistant Usage

For general information, refer to Yield Assistant.

Display Assistant Usage

For general information, refer to Display Assistant.

Example

A bandpass matching network (N=2) was designed for a passband between 1 GHz and 2 GHz with a complex source termination (Zg=20 + j×50 Ohms) and a Series RLC load termination (RL=50 Ohms, LL=1 nH, CL=1 pF). 20 choices are offered for the network. Choosing the first network results in a match realized using five reactive components. See Bandpass Matching Network.