High tuning range MEMS capacitor for microwave applications

E. David, T. Zlotnikov, L. Gal, O. Lavie, Y. Nemirovsky

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

Abstract

This paper presents a novel MEMS comb-structured variable capacitor at 20GHz that features a wide capacitance tuning range of 200%, yet avoids unwanted coupling through the springs. This new varactor consists of three comb structures - two of which are anchored to the substrate, while the third, which capacitively couples the two anchored ones, is movable, suspended on mechanical springs. This new design decouples the mechanical mechanism from the RF capacitor and allows an independent optimal design of the two.

Original languageEnglish
Title of host publication2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems, COMCAS 2009
DOIs
StatePublished - 2009
Event2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems, COMCAS 2009 - Tel Aviv, Israel
Duration: 9 Nov 200911 Nov 2009

Publication series

Name2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems, COMCAS 2009

Conference

Conference2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems, COMCAS 2009
Country/TerritoryIsrael
CityTel Aviv
Period9/11/0911/11/09

Keywords

  • Capacitors
  • Microelectromechanical devices
  • Micromachining
  • Q factor
  • Varactor

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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