The Mode Analysis of Asymmetrically Supported Broadside-Coupled Coplanar Waveguide

WANG An-guo; WU Yong-shi; DING Run-tao

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The Mode Analysis of Asymmetrically Supported Broadside-Coupled Coplanar Waveguide

更新时间：2025-07-16

- The Mode Analysis of Asymmetrically Supported Broadside-Coupled Coplanar Waveguide
- Acta Electronica Sinica Vol. 30, Issue 3, Pages: 390-393(2002)
- 作者机构：
  
  天津大学电子信息工程学院,天津,300072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN454
- Published：2002
- 稿件说明：
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WANG An-guo, WU Yong-shi, DING Run-tao. The Mode Analysis of Asymmetrically Supported Broadside-Coupled Coplanar Waveguide[J]. Acta Electronica Sinica, 2002, 30(3): 390-393.
DOI：

WANG An-guo, WU Yong-shi, DING Run-tao. The Mode Analysis of Asymmetrically Supported Broadside-Coupled Coplanar Waveguide[J]. Acta Electronica Sinica, 2002, 30(3): 390-393. DOI：

摘要

本文用准静态的方法分析了非对称支持宽边耦合共面波导的基本传播模式

给出了C模式和π模式的正确判据

纠正了现有文献中的错误

同时给出了其两线电压比、电流比和C模式和π模式的等效相对介电常数与模式阻抗的正确表达式.在上层介质为空气、下层介质分别为石英或硬铝时

分别计算了其C模式和π模式的等效相对介电常数与模式阻抗随结构参数的变化曲线.这些均为在三维(多层)微波集成电路中非对称支持宽边耦合共面波导电路的分析与设计提供了依据.

Abstract

In this paper

the propagating modes of the asymmetrically supported broadside-coupled coplanar waveguide are analyzed with the quasi-static method.The correct criteria for C and π mode are given.The mistakes in the presented papers are corrected.The correct and complete formulas of voltage ratios

current ratios on two lines

effective dielectric constants and mode impedance for C and π mode are given.For the structure where dielectric medium in the upper layer is air and the dielectric medium in the lower layer is quartz or duroid

the curves of the effective dielectric constants and mode impedance for C and π mode are presented respectively.These results could be used as references for the analysis and design of this kind of circuits in three-dimensional (multilayer) microwave integrated circuits.

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