Interference Based W-Band Single-Pole Double-Throw With Tunable Liquid Crystal Based Waveguide Phase Shifters

被引：0
|
作者：
Jost, M. [1 ]
Reese, R. [1 ]
Nickel, M. [1 ]
Schmidt, S. [1 ]
Maune, H. [1 ]
Jakoby, R. [1 ]
机构：
[1] Tech Univ Darmstadt, Inst Microwave Engn & Photon, Merckstr 25, D-64283 Darmstadt, Germany
来源：
2017 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) | 2017年
关键词：
Millimeter wave devices; tunable circuits and devices; rectangular waveguide; phase shifters; switches; liquid crystals;
D O I：
暂无
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 work presents an interference based W-band single-pole double-throw (SPDT) in rectangular waveguide and liquid crystal technology. In radiometers, this kind of SPDT can be used e.g for switching to the calibration load for power calibration. The SPDT is designed with an E-plane power divider, two different paths for the phase shifting regions, being separated by 30mm to provide enough space for the used magnets for proof-of-concept, and a coupled line combiner, where the interference is taking place. Rexolite 1422 is serving as liquid crystal cavity. The matching is better than -12 dB between 88 GHz to 110 GHz, except a peak around 102 GHz. The insertion loss is less than 3 dB between 89GHz to 105 GHz, while exhibiting an isolation of at least 9 dB in this frequency range. From 90 GHz to 100 GHz, isolation is even between 10 dB to 12 dB.
引用
收藏
页码：184 / 187
页数：4
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