Design of a Compact Dual-Band Absorptive Single-Pole Double-Throw Switch

被引：2
|
作者：
Lin, Yo-Shen [1 ]
Deng, Li-Wen [1 ]
机构：
[1] Natl Cent Univ, Dept Elect Engn, Taoyuan 32001, Taiwan
来源：
IEEE SOLID-STATE CIRCUITS LETTERS | 2022年 / 5卷
关键词：
Absorptive switch; bridged-T coil (BTC); dual-band single-pole double-throw (SPDT) switch;
D O I：
10.1109/LSSC.2022.3165641
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this letter, a compact dual-band absorptive single-pole double-throw (SPDT) switch design is proposed. It utilizes the bridged-T coil as a miniaturized dual-band lambda/4 transformer such that the concurrent dual-band operation in the on-state and the desired absorptive property in the off-state can be both achieved. The proposed design concept is validated through a 2.45/5.8-GHz dual-band absorptive SPDT switch design implemented in a commercial GaAs pHEMT process. The measured on-state insertion loss is 1.54/1.97 dB and the off-state isolation is 35/29 dB at 2.45/5.8 GHz, while the measured return losses at all ports are better than 20 dB at 2.45/5.8 GHz. In addition, a compact chip size of 2.0 mm x 1.5 mm is achieved.
引用
收藏
页码：90 / 93
页数：4
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