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2019-09-20
Design of a Four-Element MIMO Antenna with Low Mutual Coupling in a Small Size for Satelitte Applications
By
Progress In Electromagnetics Research M, Vol. 85, 95-104, 2019
Abstract
In this paper, a compact planar mono-band multiple input multiple output (MIMO) antenna with four monopole elements is presented for X-band satellite applications (7.2-7.8 GHz). The MIMO antenna resonates at 7.5 GHz, with high isolation (more than 26 dB) between its ports. It consists of a four closely arranged symmetric monopole antennas with edge-to-edge distance of 7.2 mm (0.18λ). In the top face, different forms are loaded at the rectangular patch. U slot defected ground structure (DGS) has embedded in the ground plane. The prototype of the proposed MIMO antenna is simulated, fabricated and measured to examine the performance of this antenna in terms of S parameters, radiation patterns, the envelope of correlation coefficient (ECC) and the diversity gain (DG). As a result, the presented antenna has a high isolation (S12 < -26 dB) at 7.5 GHz with impedance bandwidths is about 430 MHz (7.28 GHz-7.71 GHz), which covers the X-band applications. The diversity gain is about 10, and the envelope correlation coefficient of antenna is less than 0.02 which means that the antenna has high performance at the resonance frequency.
Citation
Aziz Dkiouak Alia Zakriti Mohssine El Ouahabi Naima Amar Touhami Aicha Mchbal , "Design of a Four-Element MIMO Antenna with Low Mutual Coupling in a Small Size for Satelitte Applications," Progress In Electromagnetics Research M, Vol. 85, 95-104, 2019.
doi:10.2528/PIERM19071202
http://www.jpier.org/PIERM/pier.php?paper=19071202
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