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 >
Cross Junction

Cross Junction

Netlist Format

A cross instance has the following netlist format:

Axxx n1 n2 n3 n4 W1=val W2=val W3=val W4=val [NSUM=val]
COMPONENT=cross SUBSTRATE=substrate_name

n1, n2, n3, and n4 are the names of the nodes attached to the cross. The entry COMPONENT=cross identifies the element as a cross. 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.

**Cross Instance Parameters**
Parameter	Description	Unit	Default
W1	Width of line connected to node n1	Meter	1e-3
W2	Width of line connected to node n2	Meter	1e-3
W3	Width of line connected to node n3	Meter	1e-3
W4	Width of line connected to node n4	Meter	1e-3
NSUM	Number of modes considered in the field expansion	None	4

Netlist Example

Across1 Port1 Port2 Port3 Port4 W1=1e-3 W2=2e-3 W3=3e-3 W4=4e-3
+ COMPONENT=cross 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 angle between intersecting lines is 90°.

2. [All substrates] Increasing NSUM improves the accuracy but increases the analysis time.

3. [Microstrip] To get accurate results with the default value of NSUM (NSUM=4), the following condition should be satisfied: H/l_g< 1 for all widths W1, W2, W3, and W4, where l_g is the guide wavelength of the dominant mode.

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