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
来源：
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2011年 / 25卷 / 13期
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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