Design of Coupled Three-Line Impedance Transformers

被引：25

作者：

Huy Thong Nguyen ^{[1
]}

Kian Sen Ang ^{[1
]}

Geok Ing Ng ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2014年 / 24卷 / 02期

关键词：

Broadband; coupled lines; impedance matching; impedance transformer; three-line couplers;

D O I：

10.1109/LMWC.2013.2290215

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：

A novel structure for impedance transformer employing symmetrical coupled three-line is presented in this letter. This new transformer is approximately the same size as the conventional quarter wavelength, achieves three reflection zeros within its band-pass, and can perform high impedance transformation ratios. To validate the design procedure, a 50-170 transformer has been implemented, achieving better than dB return loss from 0.95 to 2.2 GHz.

引用

页码：84 / 86

页数：3

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