Design of a Dual-Band Miniaturized 90° Branch-Line Coupler with Coupled Lines

被引：0
作者：
Yu, Jyan-Han [1 ]
Cheng, Ju-Ching [1 ]
Pang, Yi-Hsin [1 ]
机构：
[1] Natl Univ Kaohsiung, Dept Elect Engn, 700 Kaohsiung Univ Rd, Kaohsiung 811, Taiwan
来源：
ASIA-PACIFIC MICROWAVE CONFERENCE 2011 | 2011年
关键词：
Branch-line coupler; coupled line; dual band; miniaturization; planar;
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 planar 90 degrees branch-line coupler designed by replacing the quarter-wavelength transformers with coupled lines, which provides the proposed circuit with the ability to operate at two arbitrary frequencies. Explicit design formulas are also included. To validate the proposed design methodology, a branch-line coupler operated at 2.4 GHz and 4.9 GHz was designed and fabricated. The simulated and measured results are presented and show a good agreement with each other. In addition, area of the fabricated circuit is only 40% of the area of a conventional 90 degrees branch-line coupler at 2.4 GHz.
引用
收藏
页码：21 / 24
页数：4
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