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A Compact Efficient MIMO Antenna with EBG Structure

Author : Arun Kumar and Taimoor Khan

Pages : 783-787
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A compact efficient multiple-input- multiple-output (MIMO) antenna with EBG structure is presented. The MIMO antenna consists of two symmetric monopoles and an EBG (electromagnetic band gap) plane which is present at an air gap of 0.4 mm above the ground plane. This EBG surfaces offer a mechanism to improve antenna performance, reduce antenna size and reduce antenna to antenna coupling on platforms. In this paper, we also introduced the comparison of performance parameters of the proposed MIMO antenna with EBG structure and referred MIMO antenna. The concept of air gap is also used with EBG and to collectively enhance the impedance bandwidth, increases the gain, increases the efficiency and reduces the effective size of the antenna. A high bandwidth with S11 10 dB and S21 18 dB from 2.303 – 6.738 GHz is achieved. The analysis has been done by using IE3D software based on method of moments (MOM).

Keywords: Multiple-input multiple-output (MIMO) antenna, S-parameter (S11 & S21), Directivity, Gain, Antenna Efficiency, Radiation Efficiency, EBG and Air gap.

Article published in International Journal of Current  Engineering  and Technology, Vol.3,No.3(Aug- 2013)



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