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Design of Wideband Decoupling Networks for MIMO Antennas Based on an N-Ary Optimization Algorithm | IEEE Journals & Magazine | IEEE Xplore

Design of Wideband Decoupling Networks for MIMO Antennas Based on an N-Ary Optimization Algorithm


Abstract:

Techniques for reducing the coupling between antenna elements in multiple-input multiple-output (MIMO) systems are important for achieving the full potential of MIMO. In ...Show More

Abstract:

Techniques for reducing the coupling between antenna elements in multiple-input multiple-output (MIMO) systems are important for achieving the full potential of MIMO. In this article, a general and systematic method is developed to design a wideband decoupling and matching network (DMN) for MIMO antenna arrays. The DMN is formed by grid-like transmission lines interconnected by lumped components, whose reactances can be obtained from an N-ary optimization algorithm. Four design benchmarks are performed for validating decoupling methodology, elaborating on design/implementation procedure, and demonstrating superiority of the proposed method. Results show that the DMN achieves broad isolation bandwidth while occupying a small footprint area. Besides, the DMN is applicable for symmetric, asymmetric, and multi-element MIMO antenna arrays. In comparison to prior works, the proposed DMN offers a wider isolation bandwidth, higher efficiency, and comparable size.
Published in: IEEE Transactions on Vehicular Technology ( Volume: 71, Issue: 5, May 2022)
Page(s): 5246 - 5258
Date of Publication: 07 March 2022

ISSN Information:


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