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COUPLING REDUCTION OF ANTENNA ARRAY ELEMENTS USING SMALL INTERDIGITAL CAPACITOR LOADED SLOTS

By A. B. Abdel-Rahman

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Abstract:
Small size capacitor loaded ground plane slots are used to reduce the mutual coupling between elements in a microstrip antenna array design. The proposed compact slots are inserted between the adjacent E-plane coupled elements in the array to limit the propagation of surface waves between the elements of the array. In order to validate the feasibility of the proposed structure, a two-element array with 0.5λo distance between centers of two patches is designed, fabricated, and measured. The measured results show a reduction in mutual coupling of 17 dB obtained between elements at the operation frequency of the array.

Citation:
A. B. Abdel-Rahman, "Coupling Reduction of Antenna Array Elements Using Small Interdigital Capacitor Loaded Slots," Progress In Electromagnetics Research C, Vol. 27, 15-26, 2012.
doi:10.2528/PIERC11111809

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