Dual-Band Branch-Line Coupler With Port Extensions

被引：71

作者：

Kim, Hyunchul ^{[1
]}

Lee, Byungje ^{[1
]}

Park, Myun-Joo ^{[1
]}

机构：

[1] Kwangwoon Univ, Dept Wireless Commun Engn, Seoul 139701, South Korea

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2010年 / 58卷 / 03期

关键词：

Branch-line coupler; dual band; quadrature hybrid; WILKINSON POWER DIVIDER; HYBRID;

D O I：

10.1109/TMTT.2010.2040342

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 branch-line coupler structure with port extensions is proposed for the dual-band operation. The conventional branch-line coupler structure is adapted to the dual-band operation by inserting a transmission line section at the input ports and modifying the branch parameters. The dual-band performance of the proposed coupler is verified theoretically through the rigorous microwave circuit analysis and the exact design equations are derived in concise form. The design, simulation, and measurement results validate the dual-band capability of the proposed coupler with the same quadrature phase relation between the two band frequencies.

引用

页码：651 / 655

页数：5

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