UNEQUAL DUAL-BAND RAT-RACE COUPLER BASED ON DUAL-FREQUENCY 180 DEGREE PHASE SHIFTER

被引:8
|
作者
Sun, Z. Y. [1 ]
Zhang, L. J. [1 ]
Yan, Y. P. [1 ]
Yang, H. W. [1 ]
机构
[1] Chinese Acad Sci, Dept Elect Syst Technol, Inst Microelect, Beijing 100029, Peoples R China
关键词
WILKINSON POWER DIVIDER; DESIGN;
D O I
10.1163/156939311797454051
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 rat-race coupler with arbitrary power dividing ratio. The dual-band and unequal power dividing characteristics are obtained by using a dual-frequency 180 degree phase shifter with the conventional coupler. Closed-form design equations are derived. The proposed structure can support large power dividing ratio with a wide frequency ratio range. The measured results show that good matching, isolation, power transmission and phase balance can be achieved at two operating frequency bands.
引用
收藏
页码:1840 / 1850
页数:11
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