Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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By Z. Qamar and H. C. Park

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In this paper, suppression of mutual coupling is achieved using compact waveguided metamaterials in between elements of a densely packed microstrip array. Both the E-plane internally folded complementary split ring resonator and the H-plane internally folded complementary split ring resonator are employed to reduce the mutual coupling between adjacent elements. Coupling suppression of 18 dB and 9 dB, for elements in the E-plane and H-plane, respectively, is demonstrated. Due to the compact size of the waveguided metamaterials, the edge-to-edge separation between elements is kept at only 0.093λ0. With the same elements spacing, a 2×2 array is also simulated with compact WG-MTMs. The proposed structure reduces the array size and enables the implementation of compact Multiple-Input-Multiple-Output systems.

Z. Qamar and H. C. Park, "Compact Waveguided Metamaterials for Suppression of Mutual Coupling in Microstrip Array," Progress In Electromagnetics Research, Vol. 149, 183-192, 2014.

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