Multi-frequency, linear and circular polarized, metamaterial-inspired, near-field resonant parasitic antennas

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Abstract

Several metamaterial-inspired, electrically small, near-field resonant parasitic antennas are presented. Both electric and magnetic couplings to the parasitic are compared and contrasted. The electric-coupled versions are shown to be more efficient and to have more bandwidth. The evolution of circular polarized designs from their linear counterparts by introducing multiple parasitics having different resonant frequencies is demonstrated. Single L1 and dual band L1/L2 GPS systems are emphasized for practical illustrations of the resulting performance characteristics. Preliminary experimental results for a dual band, circularly polarized GPS L1/L2 antenna are provided and underscore several practical aspects of these designs.

Original languageEnglish (US)
Article number5723726
Pages (from-to)1446-1459
Number of pages14
JournalIEEE Transactions on Antennas and Propagation
Volume59
Issue number5
DOIs
StatePublished - May 1 2011

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Keywords

  • Antenna theory
  • Q factor
  • electrically small antennas
  • parasitic antennas
  • polarization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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