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Keywords:

  • reconfigurable antenna;
  • switchable antenna;
  • microstrip antenna;
  • polarization diversity;
  • frequency diversity;
  • defected ground structure

Abstract

In this article, a novel square microstrip antenna with a reconfigurable polarization capability is proposed that utilizes a perturbing segment in a defected ground structure (DGS).To verify the perturbing method, DGSs were embedded into either the two diagonal or all four corners of an antenna. The reconfigurable characteristics are produced by independently controlling the states of the biased DGS PIN diodes. The simulated and measured results show good frequency agility and polarization diversity with remarkable radiation performances. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:58–61, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26485