淘宝官方店推荐课程在线工具联系方式关于我们

	微波射频仿真设计 Ansoft Designer 中文培训教程 \| HFSS视频培训教程套装
	Agilent ADS 视频培训教程 \| CST微波工作室视频教程 \| AWR Microwave Office

首页 >> Ansoft Designer >> Ansoft Designer在线帮助文档

Ansoft Designer / Ansys Designer 在线帮助文档：

Nexxim Simulator >
Nexxim Component Models >
Nexxim Filters >
Pole Zero High Pass Filter

Pole Zero High Pass Filter

Netlist Syntax

An instance of a pole-zero high pass filter has the following Nexxim netlist syntax:

Axxx n1 n2 [FC=val][GF=val] [R1=val] [X1=val] [R2=val] [X2=val] POLES=[rp1 ip1 ...] ZEROS=[rz1 iz1 ...] COMPONENT=polezero_highpass_filter

n1 and n2 are the nodes connected to the filter. The entry COMPONENT=polezero_highpass_filter is required.

**Pole-Zero High Pass Filter Instance Parameters**
Parameter	Description	Units	Default
FC	3dB cutoff frequency	Hz	0
GF	Gain factor	None	1.0
R1	Resistive part of reference impedance at node 1	Ohm	50
X1	Reactive part of reference impedance at node 1	Ohm	0
R2	Resistive part of reference impedance at node 2	Ohm	50
X2	Reactive part of reference impedance at node 2	Ohm	0
*rp1, ip1* ... *rpN, ipN*	Real and imaginary parts of the poles	None	None
*rz1, iz1* ... *rzN, izN*	Real and imaginary parts of the zeros	None	None

Netlist Example

A22 1 2 FC=80e6 BW=101e4 POLES=[.1 -1.03 .2 .003]
+ ZEROS=[.05 -1.7] + COMPONENT=polezero_highpass_filter

Notes

1. The element is specified using a transfer function given as the ratio of two expressions in the complex variable s. The bold brackets for the POLES and ZEROS entries are required.

The function of the device is expressed as:

GAIN ´ H(s)

The transfer function H(s) is specified by giving the coefficients:

where F = the analysis frequency and j=sqrt(-1)

2. The first coefficients in both numerator and denominator (a₀ and b₀) are constants, which must be specified even if they are zero. Thus, leading zeros are significant. In addition, intermediate zero-valued coefficients must be explicitly supplied in order to have the non-zero coefficients applied to the correct powers of s.

3. Trailing zeros are not significant, and are automatically removed.

4. At least one non-zero pole value must be supplied.

HFSS视频教程 ADS视频教程 CST视频教程 Ansoft Designer 中文教程


Copyright © 2006 - 2013 微波EDA网, All Rights Reserved 业务联系：mweda@163.com