RF MEMS sequentially reconfigurable sierpinski antenna on a flexible organic substrate with novel DC-biasing technique

Nickolas Kingsley, Dimitrios E. Anagnostou, Manos Tentzeris, John Papapolymerou

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

Devices and systems that use RF microelectromechanical systems (RF MEMS) switching elements typically use one switch topology. The switch is designed to meet all of the performance criteria. However, this can be limiting for highly dynamic applications that require a great deal of reconfigurability. In this paper, three sets of RF MEMS switches with different actuation voltages are used to sequentially activate and deactivate parts of a multiband Sierpinski fractal antenna. The implementation of such a concept allows for direct actuation of the electrostatic MEMS switches through the RF signal feed, therefore eliminating the need for individual switch dc bias lines. This reconfigurable antenna was fabricated on liquid crystal polymer substrate and operates at several different frequencies between 2.4 and 18 GHz while maintaining its radiation characteristics. It is the first integrated RF MEMS reconfigurable antenna on a flexible organic polymer substrate for multiband antenna applications. Simulation and measurement results are presented in this paper to validate the proposed concept.

Original languageEnglish
Pages (from-to)1185-1192
Number of pages8
JournalJournal of Microelectromechanical Systems
Volume16
Issue number5
DOIs
Publication statusPublished - Oct 2007

Keywords

  • Liquid crystal polymer (LCP)
  • Multiband
  • Reconfigurable antenna
  • RF microelectromechanical systems(RF MEMS)
  • Sierpinski fractal antenna

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

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