非对称支持宽边耦合共面波导的模式分析  

The Mode Analysis of Asymmetrically Supported Broadside-Coupled Coplanar Waveguide

作　　者：王安国[1] 吴咏诗[1] 丁润涛[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《电子学报》2002年第3期390-393,共4页Acta Electronica Sinica

基　　金：国家自然科学基金 (No .69771 0 1 9)

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 )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.

关 键 词：传播模式 非对称支持 宽边耦合 共面波导 模式分析 

分 类 号：TN814[电子电信—信息与通信工程]