Average power-handling capability of the signal line in coplanar waveguides on polyimide and GaAs substrates including the irregular line edge shape effects

被引：10

作者：

Yin, WY ^{[1
]}

Zhang, YJ

Dong, XT

Gan, YB

机构：

[1] Natl Univ Singapore, Temasek Labs, Singapore 119260, Singapore

[2] Inst High Performance Comp, Singapore, Singapore

来源：

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING | 2005年 / 15卷 / 02期

关键词：

attenuation; average power handling capability (APHC); distributed parameters; finite-ground coplanar waveguides (FGCPWs); polyimide and GaAs; thermal model;

D O I：

10.1002/mmce.20063

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The average power-handling capability (APHC) of the signal line in finite-ground coplanar waveguides (FGCPWs) on polyimide and GaAs substrates is evaluated in this paper. In our approach, the ohmic loss of metal lines is characterized in different ways, and the effects of an irregular edge shape are also considered. The rise in temperature of the signal line is determined by single- and double-layer thermal models, with the temperature-dependent properties of the thermal conductivity of GaAs material treated appropriately. Parametric studies are carried out to investigate the overall effects of signal-line width, thickness, conductivity, edge-shape angle, and polyimide thickness on APHC. Some possible ways to enhance the APHC of these FGCPWs are also proposed. (c) 2005 Wiley Periodicals, Inc.

引用

页码：156 / 163

页数：8

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