Mutual Coupling Reduction Using Defected Ground Structure In Uwb Dra Array For Mimo Application
2020 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND NORTH AMERICAN RADIO SCIENCE MEETING(2020)
摘要
In this paper, the design of a closely spaced two-element ultrawide band (UWB) Surya Yantra shaped dielectric resonator antenna (DRA) array is presented. Novel rectangular loop-shaped defected ground structure (DGS) is introduced to reduce mutual coupling between DR elements. Fabrication and testing of the antenna array were carried out. Measured UWB of about 101% (3.1-9.4 GHz) was achieved. Mutual coupling below -15 dB is achieved over the entire band of interest using DGS. The proposed antenna array is a prominent candidate for MIMO applications due to its low mutual coupling, 101% UWB, the average gain of about 4.4 dBi, and fairly stable radiation pattern.
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关键词
dielectric resonator antenna (DRA), defected ground structure (DGS), multiple-input multiple-output (MIMO), mutual coupling, ultrawideband
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