A new study to suppress mutual-coupling between waveguide slot array antennas based on metasurface bulkhead for MIMO systems

Date

2018

Authors

Alibakhshikenari, Mohammad
Virdee, Bal S.
Khalily, Mohsen
See, Chan H.
Abd-Alhameed, Raed
Limiti, Ernesto

Director

Publisher

IEEE
Acceso abierto / Sarbide irekia
Contribución a congreso / Biltzarrerako ekarpena
Versión aceptada / Onetsi den bertsioa

Project identifier

  • European Commission/Horizon 2020 Framework Programme/722424/
Impacto
Google Scholar
No disponible en Scopus

Abstract

In this paper, a new method is proposed to reduce mutual coupling between waveguide slot array (WSA) antennas based on metasurface technology. This is achieved by placing a metasurface bulkhead between the two WSA antennas. Performance of the dual-waveguide antenna structure is shown to substantially enhance when compared against an identical reference WSA antenna with no metasurface. WSA antennas used in the study has dimensions 40×20×5mm 3 and operates over 1.7-3.66 GHz, which corresponds to a fractional bandwidth of 73.13%. The average isolation of the reference WSA antennas is -20 dB; however, with a metasurface bulkhead the isolation is shown to increase to -36.5 dB. In addition, the bandwidth extends by ~10%, and the gain improves by 14.66%. The proposed method is should find application in MIMO systems where high isolation between neighbouring radiation elements is required to improve the antenna characteristics, and mimimise array phase errors, which is necessary to enhance the system performance.

Description

Keywords

Array structures, Metamaterial bulkhead, Multiple-input multiple-output (MIMO) systems, Suppression mutual coupling, Waveguide slot array antennas

Department

Ingeniería Eléctrica, Electrónica y de Comunicación / Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren

Faculty/School

Degree

Doctorate program

item.page.cita

M. Alibakhshikenari et al., 'A New Study to Suppress Mutual-Coupling Between Waveguide Slot Array Antennas Based on Metasurface Bulkhead for MIMO Systems,' 2018 Asia-Pacific Microwave Conference (APMC), Kyoto, 2018, pp. 500-502. doi: 10.23919/APMC.2018.8617287

item.page.rights

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