A Technique to Suppress Mutual Coupling in Densely Packed Antenna Arrays Using Metamaterial Supersubstrate

Alibakhshikenari, Mohammad, Limiti, Ernesto, Virdee, Bal Singh and Shafai, Lotfollah (2017) A Technique to Suppress Mutual Coupling in Densely Packed Antenna Arrays Using Metamaterial Supersubstrate. In: EuCAP 2018, 9-13 April 2018, London. (In Press)

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Abstract

A simple and practical technique for reducing the mutual coupling between neighbouring antennas is presented for application in densely packed antenna arrays. This is achieved by locating between the radiation elements a smaller patch with metamaterial decoupling structure (MTM-DS). In this case the radiating elements are circular patches and the MTM-DS is constructed from a hexagonal slit resonator. The consequence of implementing the MTM-DS patch is significant reduction in mutual coupling between adjacent radiating patches by 60%, improvement in impedance match by 200% and substantial increase in the antenna’s fractional bandwidth by 369%. Since the ground plane is unaltered the front-to-back ratio is unaffected too. The proposed technique is easily realizable and can be used effectively in beam scanning applications.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: mutual coupling, microstrip antennas, phased antenna arrays, metamaterial, beam scanning
Subjects: 600 Technology > 620 Engineering & allied operations
Department: School of Computing and Digital Media
Depositing User: Bal Virdee
Date Deposited: 08 Jan 2018 10:10
Last Modified: 08 Jan 2018 10:10
URI: http://repository.londonmet.ac.uk/id/eprint/1301

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