Compact and broad-band three-dimensional MMIC balun

被引：71

作者：

Nishikawa, K ^{[1
]}

Toyoda, I ^{[1
]}

Tokumitsu, T ^{[1
]}

机构：

[1] Nippon Telegraph & Tel Corp, Wireless Syst Labs, Yokosuka, Kanagawa 239, Japan

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1999年 / 47卷 / 01期

关键词：

balun; coupler; MMIC's; three-dimensional structure;

D O I：

10.1109/22.740087

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a simple and effective technique,which compensates for the amplitude and phase differences of the Marchand balun. Compensation is accomplished by interconnecting a short transmission line to a pair of couplers. As a result, Marchand balun with operation frequency ranging as wide as 8.2-30 GHz is achieved. To fabricate the prototype, we adopt three-dimensional monolithic-microwave integrated-circuit technology together with a 2.5 mu m x 4 layer polyimide structure stacked over a GaAs wafer. The topology yields a circuit area as small as 0.2 mm x 0.4 mm for the balun.

引用

页码：96 / 98

页数：3

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