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Progress In Electromagnetics Research C
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ULTRA-SMALL SINGLE-NEGATIVE METAMATERIAL INSULATOR FOR MUTUAL COUPLING REDUCTION OF HIGH-PROFILE MONOPOLE ANTENNA ARRAY

By Y. Qiu, L. Peng, X. Jiang, Z. Sun, and S. Tang

Full Article PDF (1,377 KB)

Abstract:
A novel single-negative magnetic (SNG) metamaterial (MTM) insulator is designed to reduce mutual coupling between high-profile monopole antennas. As a kind of metamaterials, the proposed SNG MTM-resonator utilized concentric rings embedded complementary metal structures. Then, an insulator is achieved with a highly compact structure. The band-gap of the insulator is attributed to the negative permeability of the magnetic resonance. A well-engineered MTM-resonator is then embedded in between a high-profile monopole antenna array for coupling reduction. The antenna array is designed, fabricated, and measured. Both numerical and experimental results indicate a mutual coupling reduction of more than 17 dB. The 20 dB isolation bandwidth about 16% is obtained. The proposed prescription with electrically small dimensions and high decoupling efficiency opens an avenue to new types of high-profile antennas with super performances.

Citation:
Y. Qiu, L. Peng, X. Jiang, Z. Sun, and S. Tang, "Ultra-small single-negative metamaterial insulator for mutual coupling reduction of high-profile monopole antenna array," Progress In Electromagnetics Research C, Vol. 72, 197-205, 2017.
doi:10.2528/PIERC16100803
http://www.jpier.org/pierc/pier.php?paper=16100803

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