A wideband MMIC-compatible balun using offset broadside air-gap coupling

被引：4
|
作者：
Lee, S [1 ]
Kim, HT
Kim, S
Kwon, Y
Seo, KS
机构：
[1] Seoul Natl Univ, Seoul 151742, South Korea
[2] Seoul Natl Univ, Sch Elect Engn & Comp Sci, Seoul 151742, South Korea
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2004年 / 14卷 / 03期
关键词：
balun; broadband; MMIC; offset air-gap coupler; uniplanar;
D O I：
10.1109/LMWC.2004.824817
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 compact ultra-broadband MMIC-compatible uniplanar balun has been developed using offset air-gap coupler. The offset air-gap coupler presents tight coupling and low conductor loss, and thus allows the balun to show low loss at mm-wave frequencies. The measured insertion loss was less than 2 dB from 26 to 55 GHz, and amplitude and phase imbalance was less than +/-1 dB and 5degrees, respectively over a wide frequency range from 27 to 69 GHz.
引用
收藏
页码：92 / 93
页数：2
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