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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Small-Size and High-Isolation MIMO Antenna for WLAN

  • Jin, Zhe-Jun (Department of Electronic Engineering, Hanyang University) ;
  • Lim, Jong-Hyuk (Department of Electronic Engineering, Hanyang University) ;
  • Yun, Tae-Yeoul (Department of Electronic Engineering, Hanyang University)
  • Received : 2011.03.03
  • Accepted : 2011.05.31
  • Published : 2012.02.01
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Abstract

A small-sized ($15mm{\times}30mm$) planar monopole MIMO antenna that offers high-isolation performance is presented in this letter. The antenna is miniaturized using inductive coupling within a meander-line radiator and capacitive coupling between a radiator and an isolator. High isolation is achieved by a T-shaped stub attached to the ground plane between two radiators, which also contributes to the small size using a folded structure and the capacitive coupling with radiators. The proposed antenna operates for the WLAN band within 2.4 GHz to 2.483 GHz. The measured isolation (S21) is about -30 dB, and the envelope correlation coefficient is less than 0.1.

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References

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