Design of Wide Passband Microstrip Branch-Line Couplers With Multiple Sections

被引：34

作者：

Tang, Ching-Wen ^{[1
,2
]}

Tseng, Chien-Tai ^{[3
]}

Hsu, Ko-Cheng ^{[3
]}

机构：

[1] Natl Chung Cheng Univ, Adv Inst Mfg High Tech Innovat, Dept Commun Engn, Chiayi 621, Taiwan

[2] Natl Chung Cheng Univ, Adv Inst Mfg High Tech Innovat, Dept Elect Engn, Chiayi 621, Taiwan

[3] Natl Chung Cheng Univ, Dept Elect Engn, Chiayi 621, Taiwan

来源：

IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY | 2014年 / 4卷 / 07期

关键词：

Branch-line coupler; multisectional branch-line coupler; wide passband; DIRECTIONAL-COUPLERS;

D O I：

10.1109/TCPMT.2014.2320499

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel design equations are proposed for the 3-dB microstrip branch-line coupler with a wide passband, utilizing multisectional branch lines. In addition, the proposed method makes it possible to reduce the internal impedance levels of branch-line couplers so they may be physically constructed by microstrip lines. Further, in terms of measured results, there is a wide bandwidth >70%. Synthesis of the 3-dB branch-line coupler is described in details as well. Good agreement between theoretical calculation and measurement validates the proposed method.

引用

页码：1222 / 1227

页数：6

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