Mutual coupling reduction with Peyton Turtle pattern nearfield surface for MIMO patch antenna

Author:

Omidvar Alireza1,Rezaei Pejman1ORCID,Atashpanjeh Elham1

Affiliation:

1. Electrical and Computer Engineering Faculty , Semnan University , Semnan , Iran

Abstract

Abstract In this paper, a Decoupling Nearfield Surface (DNS) is designed above the antenna, to reduce the mutual coupling of closely two or more patch array. In this way, the electrical and magnetic distributions are utilized to demonstrate the mechanism of isolation. The proposed DNS element creates the electric field distributions with an orthogonal mode and the magnetic field distributions with excitation in substrate such that the effective suppression of antenna mutual coupling is obtained. The DNS element can be easily applied to the Multiple-Input Multiple-Output (MIMO) antennas that having multiple patch elements. Moreover, the proposed structure is implemented practically and simulated for a patched antenna. The measurement and simulation results verifies that the isolation is more than 20 dB and the isolated impedance bandwidth is about 7%.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering

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