Vol. 91

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2019-03-12

A Compact UWB Printed Monopole MIMO Antenna with Mutual Coupling Reduction

By Hossein Babashah, Hamid Reza Hassani, and Sajad Mohammad-Ali-Nezhad
Progress In Electromagnetics Research C, Vol. 91, 55-67, 2019
doi:10.2528/PIERC19010905

Abstract

A compact multiple-input-multiple-output (MIMO) antenna with very high isolation is proposed for ultrawideband (UWB) applications. The antenna with a compact size of 30.1×20.5 mm2 (0.31λ0×0.λ0) consists of two planar-monopole antenna elements. It is found that isolation of more than 25 dB can be achieved between two parallel monopole antenna elements. For the low frequency isolation, an efficient technique of bending the feed-line and applying a new protruded ground is introduced. To increase isolation, a design based on suppressing surface wave, near-field, and far-field coupling is applied. The simulation and measurement results of the proposed antenna with the good agreement are presented and show a bandwidth with S11 ≤ -10 dB, S12 ≤ -25 dB ranged from 3.1 to 10.6 GHz making the proposed antenna a good candidate for UWB MIMO systems.

Citation


Hossein Babashah, Hamid Reza Hassani, and Sajad Mohammad-Ali-Nezhad, "A Compact UWB Printed Monopole MIMO Antenna with Mutual Coupling Reduction," Progress In Electromagnetics Research C, Vol. 91, 55-67, 2019.
doi:10.2528/PIERC19010905
http://jpier.org/PIERC/pier.php?paper=19010905

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