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

M. Alibakhshikenari, B.S. Virdee, E. Limiti
2018 12th European Conference on Antennas and Propagation (EuCAP 2018)   unpublished
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
more » ... 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 frontto-back ratio is unaffected too. The proposed technique is easily realizable and can be used effectively in beam scanning applications.
doi:10.1049/cp.2018.1025 fatcat:ttel3oxkfffpljrvy4ox2r37oi