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Design of Miniaturized Dual-Band Artificial Magnetic Conductor with Easy Control of Second/First Resonant Frequency Ratio

  • Ta, Son Xuat (Department of Electrical and Computer Engineering, Ajou University) ;
  • Park, Ikmo (Department of Electrical and Computer Engineering, Ajou University)
  • Received : 2013.03.15
  • Accepted : 2013.05.09
  • Published : 2013.06.30

Abstract

A novel miniaturized artificial magnetic conductor (AMC) is proposed for dual-band operation. An AMC unit cell that employs four slots in the metallic patch is used to achieve miniaturization as well as easy control of the second/first resonant frequency ratio, which can be varied from 1.5 to 3.26 by simply changing the slot shape for a given metallic patch size. A dual-band antenna composed of a wideband monopole suspended over the proposed AMC surface is designed and tested to validate this approach. The measurements result in a satisfactory and good matching condition for the dual-band antenna.

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