Switched Beam Antenna Based on RF MEMS SPDT Switch on Quartz Substrate

被引：31

作者：

Cheng, Shi ^{[1
]}

Rantakari, Pekka ^{[2
]}

Malmqvist, Robert ^{[3
]}

Samuelsson, Carl ^{[3
]}

Vaha-Heikkila, Tauno ^{[2
]}

Rydberg, Anders ^{[1
]}

Varis, Jussi ^{[2
]}

机构：

[1] Uppsala Univ, Dept Engn Sci Signals & Syst, S-75121 Uppsala, Sweden

[2] VTT Tech Res Ctr Finland, Espoo 02044, Finland

[3] FOI Swedish Def Res Agcy, Dept Sensor Technol, S-58111 Linkoping, Sweden

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2009年 / 8卷

关键词：

Front-to-back ratio; half-power beamwidth (HPBW); quasi-Yagi antenna; radio frequency microelectromechanical system (RF MEMS); single-pole double-throw (SPDT) switch;

D O I：

10.1109/LAWP.2009.2018712

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 demonstrates a 20-GHz radio frequency microelectromechanical system (RF MEMS)-based electrically switchable antenna on a quartz substrate. Two quasi-Yagi antenna elements are monolithically integrated with a single-pole double-throw (SPDT) MEMS switch router network on a 21 mm x 8 mm chip. Electrical beam steering between two opposite directions is achieved using capacitive MEMS SPDT switches in the router. Port impedance and radiation patterns are studied numerically and experimentally. Measured results show that the switched beam antenna features a 27% impedance bandwidth (S-11 = -10 dB), a gain of 4.6 dBi, and a front-to-back ratio of 14 dB at 20 GHz when the control voltage is applied to one of the switch pairs of the SPDT switch.

引用

页码：383 / 386

页数：4

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