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A novel design of RF-MEMS phase shifter based on bridge-like coplanar waveguide

  • Lu Kui Jin*
  • , Wu Qun
  • , Tang Kai
  • , He Xun-jun
  • , Yang Guo-hui
  • , Fu Jia-hui
  • , Zhang Fang
  • , Jongchul Lee
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Kwangwoon University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, a novel RF-MEMS phase shifter based on a rectangle bridge-like coplanar waveguide (BCPW) structure is proposed. The signal line of the coplanar waveguide (CPW) has symmetrical saw-shaped structures under the MEMS bridges above which covers the BCPW bridge. The CST software is used for the modeling, simulation and optimization the model of pahse shifter from 30 to 40GHz. Simulation and optimization results show that the proposed design with a 35GHz central resonant frequency has a return loss less than -10dB within about 2GHz bandwidth range and for each RF MEMS switch-type bridge, as high as 75 degrees phase shift is realized. Compared with MEMS phase shifters without a BCPW bridge, Sn performance can be improved by up to 10dB, and interference among the adjacent components can be decreased.

Original languageEnglish
Title of host publicationProceedings - IEEE INDIN 2008
Subtitle of host publication6th IEEE International Conference on Industrial Informatics
Pages171-175
Number of pages5
DOIs
StatePublished - 2008
EventIEEE INDIN 2008: 6th IEEE International Conference on Industrial Informatics - Daejeon, Korea, Republic of
Duration: 13 Jul 200816 Jul 2008

Publication series

NameIEEE International Conference on Industrial Informatics (INDIN)
ISSN (Print)1935-4576

Conference

ConferenceIEEE INDIN 2008: 6th IEEE International Conference on Industrial Informatics
Country/TerritoryKorea, Republic of
CityDaejeon
Period13/07/0816/07/08

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