Design Optimization of RF MEMS SP4T and SP6T Switch

Novel designs of RF MEMS SP4T and SP6T switches with improved performance are reported. The design optimization carried out having significant impact on the RF characteristics of these switches. The device takes advantage of the CPW transmission line with small width and spacing configured for 50 Ω...

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Bibliographic Details
Published in2010 3rd International Conference on Emerging Trends in Engineering and Technology pp. 430 - 433
Main Authors Roy, S C, Rangra, K J
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2010
Subjects
Bridge circuits
Coplanar waveguides
Insertion loss
Isolation
Micromechanical devices
Radio frequency
RF MEMS
SP4T
SP6T
Switches
Switching circuits
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Summary:Novel designs of RF MEMS SP4T and SP6T switches with improved performance are reported. The design optimization carried out having significant impact on the RF characteristics of these switches. The device takes advantage of the CPW transmission line with small width and spacing configured for 50 Ω line impedance with ohmic-contact SPST switch. The results show significant improvement in insertion loss and isolation without any significant changes in other electromechanical and RF parameters. A systematic comparison of different configurations of CPW designs and SPST switch is performed. The simulated insertion loss and isolation are better than -0.238 dB and -53.002 dB respectively for SP4T switch and -0.2956 dB and -57.217 dB respectively for SP6T switch, at 8 GHz.
ISBN:9781424484812
1424484812
ISSN:2157-0477
2157-0485
DOI:10.1109/ICETET.2010.62