Vol. 117

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2021-12-24

Compact Dual-Band Printed MIMO Antenna with Very Low Mutual Coupling for WLAN, Wi-MAX, Sub-6 GHz 5G and X-Band Satellite Communication Applications

By Kommana Vasu Babu, Sudipta Das, Soufian Lakrit, Shobhitkumar Kiritkumar Patel, Boddapati Taraka Madhav, and Hicham Medkour
Progress In Electromagnetics Research C, Vol. 117, 99-114, 2021
doi:10.2528/PIERC21100201

Abstract

In this paper, a dual-band modified multiple-input-multiple-output (MIMO) antenna with high isolation is presented and discussed. The proposed compact structure (35×25 mm2) consists of two monopole elements and defected ground planes to obtain high impedance bandwidth. Two elliptical-shaped patches are placed orthogonal to each other to obtain high isolation, and a neutralization slit is integrated into the ground plane of each element to further improve the isolation between the elements. The measurement results of the proposed structure show satisfactory agreement with the simulation results. The measured bandwidths are 47.05% (2.6-4.2 GHz) and 64.72% (5.11-10 GHz) at S11 ≤ -10 dB which covers bandwidth requirements of WiMAX (3.4-3.6 GHz, 5.25-5.85 GHz), sub 6 GHz 5G band (3.4-3.8 GHz), WLAN (5.15-5.35 GHz, 5.725-5.825 GHz), and X band satellite communication systems (7.25–8.39 GHz). The designed antenna offers a peak gain of about 9.0 dBi and radiation efficiency of about 92%. The measured minimum isolation is greater than 27.3 dB across the dual band with a maximum value of 73.4 dB. The envelope correlation coefficient (ECC) is below 0.0035, channel capacity loss less than 0.37 bits/s/Hz, and peak diversity gain about 10 dBi.

Citation


Kommana Vasu Babu, Sudipta Das, Soufian Lakrit, Shobhitkumar Kiritkumar Patel, Boddapati Taraka Madhav, and Hicham Medkour, "Compact Dual-Band Printed MIMO Antenna with Very Low Mutual Coupling for WLAN, Wi-MAX, Sub-6 GHz 5G and X-Band Satellite Communication Applications," Progress In Electromagnetics Research C, Vol. 117, 99-114, 2021.
doi:10.2528/PIERC21100201
http://jpier.org/PIERC/pier.php?paper=21100201

References