Group Delay Investigation of Rat-Race Coupler Design With Tunable Power Dividing Ratio

被引：10
|
作者：
Chik, Man-Chum J. [1 ]
Cheng, Kwok-Keung M. [1 ]
机构：
[1] Chinese Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2014年 / 24卷 / 05期
关键词：
Group delay; rat-race coupler; tuning diodes; variable power dividing ratio; HYBRID-RING;
D O I：
10.1109/LMWC.2014.2309085
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 letter presents, for the first time, the theoretical and experimental investigation of the group delay characteristics of a rat-race coupler with variable power dividing ratio. By analytically study, the group delays associated with different transmission paths are found to be identical and can be made independent of the power dividing ratio by the proper design of the embedded networks. For validation, both simulated and measured results of a 1 GHz variable rat-race coupler implemented on microstrip are shown.
引用
收藏
页码：324 / 326
页数：3
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