Compact Dual-Band Branch-Line Coupler With Dual Transmission Lines

被引：44

作者：

Gai, Chao ^{[1
]}

Jiao, Yong-Chang ^{[1
]}

Zhao, Yu-Long ^{[2
]}

机构：

[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China

[2] Univ Calgary, Dept Elect & Comp Engn, Intelligent RF Radio Lab iRadio Lab, Calgary, AB 1N4 AB, Canada

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2016年 / 26卷 / 05期

关键词：

Branch-line coupler; compact size; dual-band; planar structure; pi-shaped dual transmission lines; HYBRID COUPLERS; DESIGN;

D O I：

10.1109/LMWC.2016.2549099

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 letter presents a dual-band branch-line coupler with compact size and planar structure. The pi-shaped dual transmission lines structure is used to realize 90 degrees phase shift at two arbitrary frequencies. Explicit design equations are derived using the ABCD and admittance matrices. For verification, a prototype is designed, fabricated, and tested. The coupler has a compact size with 76% size reduction compared with the conventional circuit at the first band. The measured results are in good agreement with the simulated results.

引用

页码：325 / 327

页数：3

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