High-directivity, electrically small, low-profile near-field resonant parasitic antennas

Research output: Contribution to journalArticle

46 Scopus citations

Abstract

A combination of metastructures is used to achieve high directivity, electrically small, low-profile, linear (LP) and circularly polarized (CP) near-field resonant parasitic (NFRP) antennas. A conformal metamaterial-inspired Egyptian axe dipole antenna is introduced, and its performance characteristics are presented. The electrically small, low-profile LP and CP high-directivity systems are achieved by amalgamating this NFRP antenna with an electromagnetic band-gap (EBG) structure, which acts as an artificial magnetic conductor (AMC) ground plane. As with all of the nonconformal metamaterial-inspired antennas, the designs of the driven and parasitic elements of these low-profile antennas are tailored to achieve nearly complete matching of the entire system to a 50-$\Omega $ source without any matching network and to yield high radiation efficiencies.

Original languageEnglish (US)
Article number6165329
Pages (from-to)305-309
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Volume11
DOIs
StatePublished - Apr 18 2012

Keywords

  • Antenna directivity
  • antenna efficiency
  • electrically small antennas (ESAs)
  • electromagnetic band-gap (EBG) structures
  • metastructures

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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