A compact antenna based on SRR and spiral with increased bandwidth and radiation efficiency

Shuyan Yang*, Mou-Kehn Ng, O. Quevedo-Teruel, E. Rajo-Iglesias

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A compact planar microstrip antenna capable of providing tunable dual bands, broader bandwidths, and higher efficiencies is proposed. It is composed of a split ring resonator (SRR) etched on a topmost dielectric slab, together with a metallic spiral printed on a middle slab beneath and shorted via a pin to the metal ground plane. This pin drills through a bottom dielectric layer on which a feed line comprising a rectangular microstrip and a meander line for matching is printed. We seek to merge two resonances so as to expand the bandwidth (10dB), and increase the radiation efficiency. The designed antenna is of size 0.11o along each side or 0.18 dielectric wavelength ( r = 2.2). The achieved efficiency is 55% at 1.7GHz, and the bandwidth is more than double that of the single band counterpart.

Original languageEnglish
Title of host publication2011 IEEE International Symposium on Antennas and Propagation - Proceedings
Pages1270-1273
Number of pages4
DOIs
StatePublished - 1 Nov 2011
Event2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011 - Spokane, WA, United States
Duration: 3 Jul 20118 Jul 2011

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Conference

Conference2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011
CountryUnited States
CitySpokane, WA
Period3/07/118/07/11

Keywords

  • compact
  • increase bandwidth
  • meander line
  • radiation efficiency
  • spiral resonator
  • SRR

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