Electromagnetic Coupling Reduction in Microstrip Antenna Arrays Using Single-Negative Electric Waveguided Metamaterials

Abstract:

A single-negative electric waveguided metamaterial (WG-MTM) is proposed using folded complementary split single ring resonator (FCSSRR) to reduce mutual coupling in antenna arrays for MIMO applications. The WG-MTM is investigated numerically, which proved to exhibit electric resonance and band-gap property. Two antenna arrays have been designed, fabricated and measured. By inserting the electric negative metamaterial, a mutual coupling reduction of 9.2dB has been achieved with an edge-to-edge distance less than 0.17 (where is the operating wavelength). Moreover, the metamaterial loaded antenna has better far-field radiation patterns compared with the reference antenna. Thus, this novel structure not only has good coupling reduction ability, but also can optimize the performances of the antennas.

• Periodical: Applied Mechanics and Materials (Volume 596)
• Pages: 816-821
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.596.816
• Online since: July 2014
• Authors: Li Zhong Hu*, Guang Ming Wang, Guo Cheng Wu
• Keywords: Antenna Arrays, Metamaterials, Mutual Coupling Reduction

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