Design of Dual-Band-90°/+90° Transmission Lines for Miniaturized Dual-Band 1:4 Rat-Race Couplers

被引：0

作者：

Chang, Chih-Chun ^{[1
]}

Wei, Yen-Hsiu ^{[1
]}

Chin, Kuo-Sheng ^{[1
]}

机构：

[1] Chang Gung Univ, Dept Elect Engn, Taoyuan 333, Taiwan

来源：

2017 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) | 2017年

关键词：

Dual-band transmission line; rat-race coupler;

D O I：

暂无

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 dual-band -90 degrees/+90 degrees transmission line for the miniaturization of dual-band rat-race couplers. This line was constructed using two diagonally end-shorted coupled-line sections tapped by open stubs at their center. The proposed structure has the advantages of -90 degrees/+90 degrees electrical lengths at two arbitrary frequencies and high equivalent characteristic impedances, enabling the creation of small couplers that have a large power-split ratio of up to 1:32. Using the proposed structure, a rat-race coupler operated at 2.4/5.1 GHz with a power-split ratio of 1:4 was fabricated for demonstration. This circuit occupies only 44% of the area of existing dual-band rat-race couplers.

引用

页码：1285 / 1288

页数：4

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