Mutual Coupling Reduction in a DGS-Incorporated Millimeter-Wave MIMO Antenna Array

Sokunbi, Oludayo; Attia, Hussein; Kishk, Ahmed A.

doi:10.1109/ap-s/usnc-ursi47032.2022.9887111

Cited by 2 publications

(1 citation statement)

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“…These improvements allowed the realized gain to increase as well as the scanning range of this array. A T-and E-shaped defected ground surface was studied in [223] to reduce mutual coupling of a tight space MIMO antenna array operating at a center frequency of 70 GHz. The dimensions and positions of the slots on the ground plane were optimized and resulted in a 50 dB maximum mutual coupling reduction over the 62-77 GHz bandwidth (21.6 %), with an edge-to-edge spacing of 0.55 mm (0.13λ @ 70 GHz).…”

Section: Overcoming Mutual Coupling In Massive Mimo and Mmwavesmentioning

confidence: 99%

A Review on Mutual Coupling Reduction Techniques in mmWaves Structures and Massive MIMO Arrays

Ramos,

Varum,

Matos

2023

IEEE Access

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In the most recent years multiple-input multiple-output (MIMO) antennas have been widely implemented to take advantage of the opportunity in controlling their radiation pattern and/or polarization in overcoming modern telecommunication systems issues. High levels of mutual coupling can lead to great degradation of an antenna's performance and as such, the study of solutions to minimize its impact was encouraged. This paper provides a literature review of the mutual coupling analysis and its possible mitigation techniques in various systems including massive multiple-input multiple-output (MIMO) systems and mmWaves antennas. Besides going through the main decoupling techniques, this letter compares the different achievements with the respective approaches, and it even allows the understanding of the main advantages and downsides of each one of the techniques studied.

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Section: Overcoming Mutual Coupling In Massive Mimo and Mmwavesmentioning

confidence: 99%