Low Actuating Voltage Spring-Free RF MEMS SPDT Switch
RF MEMS devices are known to be superior to their solid state counterparts in terms of power consumption and electromagnetic response. Major limitations of MEMS devices are their low switching speed, high actuation voltage, larger size, and reliability. In the present paper, a see-saw single pole do...
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doaj-81a95e94376e4ca490e822a84bbb0b512021-07-02T06:08:06ZengHindawi LimitedJournal of Electrical and Computer Engineering2090-01472090-01552016-01-01201610.1155/2016/79845487984548Low Actuating Voltage Spring-Free RF MEMS SPDT SwitchDeepak Bansal0Anuroop Bajpai1Prem Kumar2Maninder Kaur3Kamljit Rangra4Central Electronics Engineering Research Institute (CEERI), Council of Scientific and Industrial Research (CSIR), Pilani, Rajasthan 333031, IndiaCentral Electronics Engineering Research Institute (CEERI), Council of Scientific and Industrial Research (CSIR), Pilani, Rajasthan 333031, IndiaCentral Electronics Engineering Research Institute (CEERI), Council of Scientific and Industrial Research (CSIR), Pilani, Rajasthan 333031, IndiaCentral Electronics Engineering Research Institute (CEERI), Council of Scientific and Industrial Research (CSIR), Pilani, Rajasthan 333031, IndiaCentral Electronics Engineering Research Institute (CEERI), Council of Scientific and Industrial Research (CSIR), Pilani, Rajasthan 333031, IndiaRF MEMS devices are known to be superior to their solid state counterparts in terms of power consumption and electromagnetic response. Major limitations of MEMS devices are their low switching speed, high actuation voltage, larger size, and reliability. In the present paper, a see-saw single pole double throw (SPDT) RF MEMS switch based on anchor-free mechanism is proposed which eliminates the above-mentioned disadvantages. The proposed switch has a switching time of 394 nsec with actuation voltage of 5 V. Size of the SPDT switch is reduced by utilizing a single series capacitive switch compared to conventional switches with capacitive and series combinations. Reliability of the switch is improved by adding floating metal and reducing stiction between the actuating bridge and transmission line. Insertion loss and isolation are better than −0.6 dB and −20 dB, respectively, for 1 GHz to 20 GHz applications.http://dx.doi.org/10.1155/2016/7984548 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Deepak Bansal Anuroop Bajpai Prem Kumar Maninder Kaur Kamljit Rangra |
spellingShingle |
Deepak Bansal Anuroop Bajpai Prem Kumar Maninder Kaur Kamljit Rangra Low Actuating Voltage Spring-Free RF MEMS SPDT Switch Journal of Electrical and Computer Engineering |
author_facet |
Deepak Bansal Anuroop Bajpai Prem Kumar Maninder Kaur Kamljit Rangra |
author_sort |
Deepak Bansal |
title |
Low Actuating Voltage Spring-Free RF MEMS SPDT Switch |
title_short |
Low Actuating Voltage Spring-Free RF MEMS SPDT Switch |
title_full |
Low Actuating Voltage Spring-Free RF MEMS SPDT Switch |
title_fullStr |
Low Actuating Voltage Spring-Free RF MEMS SPDT Switch |
title_full_unstemmed |
Low Actuating Voltage Spring-Free RF MEMS SPDT Switch |
title_sort |
low actuating voltage spring-free rf mems spdt switch |
publisher |
Hindawi Limited |
series |
Journal of Electrical and Computer Engineering |
issn |
2090-0147 2090-0155 |
publishDate |
2016-01-01 |
description |
RF MEMS devices are known to be superior to their solid state counterparts in terms of power consumption and electromagnetic response. Major limitations of MEMS devices are their low switching speed, high actuation voltage, larger size, and reliability. In the present paper, a see-saw single pole double throw (SPDT) RF MEMS switch based on anchor-free mechanism is proposed which eliminates the above-mentioned disadvantages. The proposed switch has a switching time of 394 nsec with actuation voltage of 5 V. Size of the SPDT switch is reduced by utilizing a single series capacitive switch compared to conventional switches with capacitive and series combinations. Reliability of the switch is improved by adding floating metal and reducing stiction between the actuating bridge and transmission line. Insertion loss and isolation are better than −0.6 dB and −20 dB, respectively, for 1 GHz to 20 GHz applications. |
url |
http://dx.doi.org/10.1155/2016/7984548 |
work_keys_str_mv |
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