Miniaturised self-resonant split-ring resonator antenna

Oleksiy S. Kim, Olav Breinbjerg

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Abstract

A self-resonant miniaturized antenna composed of a broadside-coupled split-ring resonator (SRR) and an excitation arc-shaped monopole is presented. The size of the antenna and its resonance frequency is essentially defined by the SRR dimensions and geometry, while the input resistance at the resonance is governed by the arc length of the monopole. Numerical and experimental results are presented for an antenna configuration of 1/23.4 wavelength in diameter (ka~0.134). The antenna is tuned to 50 ohms without any matching network, and its efficiency is measured to be 17.5%.
Original languageEnglish
JournalElectronics Letters
Volume45
Issue number4
Pages (from-to)196-197
ISSN0013-5194
DOIs
Publication statusPublished - 2009

Keywords

  • Antenna theory
  • Monopole antennas
  • Tuning
  • SRR
  • Metamaterials
  • Electrically small antennas
  • Split-ring resonator

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