Mutual Coupling Reduction Between Ultra-Wide Band Antennas for Millimeter Wave Applications

Swamy, Alladi Narayana; Nandigama, Srujana Vahini; Naik, Badavath Maniratnam; Kunooru, Bharath

doi:10.1109/ukrmw58013.2022.10037088

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Overcoming Mutual Coupling In Massive Mimo and Mmwaves1

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2023

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“…Both in [215] and [187] EBG structures were used and led to mutual couplings around 23 dB in [215] and 17 dB in [187]. On the contrary, metamaterials such as spiral ring resonator can also be adopted as was done in [216] and in [217], where for example, a metasurface layer improved gain and a 9×6 circular split ring improved isolation to 45 dB.…”

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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