Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Improving the Isolation of MIMO Antennas Using Split Ring Resonators

  • Lee, Young-Ki (Dept. of Electronics and Computer Engineering, Hanyang University) ;
  • Chung, Hae-Il (Dept. of Electronics and Computer Engineering, Hanyang University) ;
  • Choi, Jae-Hoon (Dept. of Electronics and Computer Engineering, Hanyang University)
  • Received : 2010.11.04
  • Published : 2010.12.31
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Abstract

This paper proposes a method for improving the isolation characteristic of multi-input multi-output (MIMO) antennas using a split ring resonator (SRR) array structure between the two radiating elements. The fabricated antenna satisfies the 10 dB return loss requirement in the Mobile-WiMAX frequency band from 3.4 GHz to 3.6 GHz. The isolation between the two radiating elements is improved by approximately 20 dB at the center frequency by inserting a SRR array structure. The measured peak gains of the two elements are 2.3 dBi and 2.4 dBi, respectively.

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