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Ansoft Designer / Ansys Designer 在线帮助文档：

System Simulator >
System Component Models >
Filters >
Pole Zero LowPass Filter (POLEZEROLPF)

Pole Zero LowPass Filter (POLEZEROLPF)

Properties	Description	Units	Default	Range
RP	RP1, RP2, RP3,...:List of real parts of the poles	None	0	-INF, INF
IP	IP1, IP2, IP3, ...: List of imaginary parts of the poles	None	0	-INF, INF
RZ	RZ1, RZ2, RZ3, ...: List of real parts of the zeros	None	0	-INF, INF
IZ	IZ1, IZ2, IZ3, ...: List of imaginary parts of the zeros	None	0	-INF, INF
FC	3-dB passband edge frequency	Hz	Required	> 0
GF	Gain factor	None	1	-INF, INF
R1	Resistive part of reference impedance at port 1	Ohm	50.	>0
X1	Reactive part of reference impedance at port 1	Ohm	0.	-INF,INF
R2	Resistive part of reference impedance at port 2	Ohm	50.	>0
X2	Reactive part of reference impedance at port 2	Ohm	0.	-INF, INF

Notes

1. The transfer function is:

where:

and F is the analysis frequency.

2. At least one pole must be supplied.

POLEZEROLPF:NAME n1 n2 RP1=val RP2=val...

+ IP1=val IP2=val ... FC=val [GF=val] [R1=val] [X1=val] [R2=val] [X2=VAL]

POLEZEROLPF:1 1 2 RP1=-0.707 IP1=-0.707 RP2=-0.707

+ IP2=0.707 FC=1kHz


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