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

Shi Cheng, Pekka Rantakari, Robert Malmqvist, Carl Samuelsson, Tauno Vähä-Heikkilä, Anders Rydberg, Jussi Varis

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Abstract

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 times 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 (S11 = -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.
Original languageEnglish
Pages (from-to)383-386
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume8
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

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MEMS
Quartz
Poles
Switches
Antennas
Substrates
Routers
Voltage control
Bandwidth

Cite this

@article{754ca18a4ed941e8af96d4e539a2d8ed,
title = "Switched Beam Antenna Based on RF MEMS SPDT Switch on Quartz Substrate",
abstract = "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 times 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 (S11 = -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.",
author = "Shi Cheng and Pekka Rantakari and Robert Malmqvist and Carl Samuelsson and Tauno V{\"a}h{\"a}-Heikkil{\"a} and Anders Rydberg and Jussi Varis",
note = "Project code: 9278",
year = "2009",
doi = "10.1109/LAWP.2009.2018712",
language = "English",
volume = "8",
pages = "383--386",
journal = "IEEE Antennas and Wireless Propagation Letters",
issn = "1536-1225",
publisher = "IEEE Institute of Electrical and Electronic Engineers",

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Switched Beam Antenna Based on RF MEMS SPDT Switch on Quartz Substrate. / Cheng, Shi; Rantakari, Pekka; Malmqvist, Robert; Samuelsson, Carl; Vähä-Heikkilä, Tauno; Rydberg, Anders; Varis, Jussi.

In: IEEE Antennas and Wireless Propagation Letters, Vol. 8, 2009, p. 383-386.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Switched Beam Antenna Based on RF MEMS SPDT Switch on Quartz Substrate

AU - Cheng, Shi

AU - Rantakari, Pekka

AU - Malmqvist, Robert

AU - Samuelsson, Carl

AU - Vähä-Heikkilä, Tauno

AU - Rydberg, Anders

AU - Varis, Jussi

N1 - Project code: 9278

PY - 2009

Y1 - 2009

N2 - 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 times 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 (S11 = -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.

AB - 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 times 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 (S11 = -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.

U2 - 10.1109/LAWP.2009.2018712

DO - 10.1109/LAWP.2009.2018712

M3 - Article

VL - 8

SP - 383

EP - 386

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

SN - 1536-1225

ER -