Mutual Coupling Reduction Using Meta-Structures for Wideband, Dual-Polarized, High-Density Patch Arrays

Publication Type:
Journal Article
Citation:
IEEE Transactions on Antennas and Propagation, 2017, 65 (8), pp. 3986 - 3996 (10)
Issue Date:
2017-08
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A mutual coupling reduction strategy that employs meta-structures is introduced for wideband, dual-polarized, high-density, planar, and patch antenna arrays. The meta-structures consist of two types of resonators: grounded capacitively loaded loops (GCLLs) and π -shaped elements. By incorporating the meta-structures into the array configuration, the isolation levels between adjacent radiating elements in both the E- and H-planes orientations are improved by as much as 7.15 dB. The surface current distribution behaviors of the array with only the GCLLs and with only the π -shaped elements are investigated thoroughly to explain the mutual coupling reduction mechanisms. A proof-of-concept array was constructed and tests were performed that validate the reported design principles and simulation results.
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