A cryogenic broadband DC contact RF MEMS switch

Songbin Gong, Hui Shen, N. Scott Barker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A dielectric free DC contact RF microelectromechanical systems (MEMS) switch is designed and tested under room temperature and cryogenic temperature. The switch demonstrates a 1 Ω contact resistance and 2 fF up-state capacitance, and thus has an insertion-loss less than 0.4 dB up to 50 GHz and less than 0.9 dB up to 75 GHz at room temperature. The isolation is better than 24 dB up to 50 GHz and 18 dB up to 75 GHz at room temperature. At cryogenic temperature (77.5K), the switch has an insertion-loss less than 0.6 dB with isolation better than 24 dB up to 50 GHz. The effects of cryogenic temperatures on actuation voltage and contact resistance have been noted. The theoretical and experimental results of the switch performance are presented and compared.

Original languageEnglish (US)
Title of host publicationIMS 2009 - 2009 IEEE MTT-S International Microwave Symposium Digest
Pages1225-1228
Number of pages4
DOIs
StatePublished - 2009
Externally publishedYes
Event2009 IEEE MTT-S International Microwave Symposium, IMS 2009 - Boston, MA, United States
Duration: Jun 7 2009Jun 12 2009

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Other

Other2009 IEEE MTT-S International Microwave Symposium, IMS 2009
Country/TerritoryUnited States
CityBoston, MA
Period6/7/096/12/09

Keywords

  • Contact resistance
  • Cryogenic temperature
  • DC contact
  • Dielectric free
  • RF MEMS

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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