Dual-band patch antennas based on short-circuited split ring resonators

Óscar Quevedo-Teruel*, Mou-Kehn Ng, Eva Rajo-Iglesias

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

A study of an innovative antenna based on split ring resonators (SSRs) is presented. SSRs have been exhaustively used in the literature as the unit cell of periodic structures for obtaining left-handed media, whose interesting characteristics can be applied to waveguides or antennas. In this work, the authors propose the use of only one unit cell of a double SRR as a radiator. The double SRR is printed on a grounded dielectric slab, acting as the radiating element of a microstrip patch antenna, and grounded pins are used to short-circuit the structure for size reduction. A compact dual band antenna is obtained in this way. For example, a particular design making use of PP εr = 2.2as substrate allows a size of 0.05 λ 0× 0.05 λ0 for the lower frequency of operation with an acceptable radiation efficiency. Simulated and measured results of return losses, gain and radiation efficiency of this new type of patch antenna are provided.

Original languageEnglish
Article number5784316
Pages (from-to)2758-2765
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Volume59
Issue number8
DOIs
StatePublished - 1 Aug 2011

Keywords

  • Dual band
  • microstrip patch antenna
  • split ring resonator

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