Novel 3-dB Tandem Coupler with Wide Bandwidth by Using 4 Short Stubs

被引：0

作者：

Inaba, Takeru ^{[1
]}

Hayashi, Hit Oshi ^{[1
]}

机构：

[1] Sophia Univ, Tokyo 1028554, Japan

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2020年 / 93卷

关键词：

DESIGN;

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：

A new wideband 3-dB tandem coupler is presented that has wide bandwidth using four 90 degrees short stubs. The proposed tandem coupler does not require a higher transmission line impedance or a narrower coupling gap than conventional couplers. Measurements of the fabricated tandem coupler operated at a center frequency of f(0)= 1GHz are presented as verification of the design concept. The fractional bandwidth (FBW) at which the return loss was suppressed to a level better than 15 dB was 71%. Theoretical calculations and measurements of the tandem coupler were in good agreement.

引用

页码：131 / 136

页数：6

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