A 60-GHz 2-bit switched-line phase shifter using SP4T RF-MEMS switches

Songbin Gong, Hui Shen, N. Scott Barker

Research output: Contribution to journalArticlepeer-review


This paper presents a V-band 2-bit switched-line phase shifter using dc-contact single-pole four-throw (SP4T) RF microelectromechanical systems (RF-MEMS) switches for 60-GHz applications. The design and measurements of the SP4T RF-MEMS switches and the phase shifter are presented. The phase shifter demonstrates an average insertion loss of 2.5 dB in the 55-65-GHz band with a return loss better than 12 dB for each state. The phase error for each state of the switched-line phase shifter is less than 1 at 60 GHz.

Original languageEnglish (US)
Article number5719259
Pages (from-to)894-900
Number of pages7
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number4 PART 1
StatePublished - Apr 2011
Externally publishedYes


  • 60 GHz
  • Broadband
  • cantilever
  • contact resistance
  • dc-contact
  • low loss
  • microelectromechanical systems (MEMS)
  • phase arrays
  • phase shifters
  • series switch

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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