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 >
Microstrip Elements >
Open Stub, Electrical Length

Open Stub, Electrical Length

Netlist Format

An instance of an open stub with electrical length has the following netlist syntax:

Axxx n1 W=val E=val F=val COMPONENT=open_stub_e SUBSTRATE=substrate_name

n1 is the name of the node attached to the open stub. A reference node of ground (node 0 ) is automatically supplied, and is not shown in the netlist. The entry COMPONENT=open_stub_e identifies the element as an open stub with electrical length.

The entry SUBSTRATE=substrate_name identifies the microstrip substrate model name selected for the design (see Selecting a Microstrip Substrate). See the Microstrip (MS) Substrate for information on this substrate type.

**Open Stub with Electrical Length, Instance Parameters**
Parameter	Description	Units	Default
W	Line width	Meter	1e-3
E	Electrical length	Degree	45
F	Reference frequency for E	Hz	1e9

Netlist Example

A44 Port1 W=1.0e-3 E=45 F=1.0e9
+ COMPONENT=open_stub_e SUBSTRATE=FR4

where FR4, the selected layout technology or substrate type, has a definition such as:

.SUB FR4 MS( H=7.6200e-004 Er=4.4 TAND=0.02 TANM=0
+ MSat=0 MRem=0 HU=0.00508 MET1=1.72413793103448
+ T1=1.7145e-005 RGH=0mil)

Notes

1. [All substrates] The open stub, electrical length model is equivalent to a transmission line model followed by an open model. This is also true in the case of negative length specifications, which are used for deembedding purposes. Note that in the latter case, the open stub model is equivalent to the transmission line model with a negative length terminated by an open.

2. [Microstrip] This model includes radiation effects if a cover height is not supplied (i.e., open structure.)

3. [Microstrip] The following limits apply (H is the thickness of the dielectric):
0.01 £ W/H £ 100

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