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Study on Mutual Coupling between Two Ports of Dual Slot-Coupled Circular Microstrip Antennas
Yasushi MURAKAMI Wataru CHUJO Isamu CHIBA Masayuki FUJISE
IEICE TRANSACTIONS on Communications
Publication Date: 1994/06/25
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Antennas and Propagation
antennas and propagation, microstrip antenna, circular polarization, mutual coupling, slot-coupling,
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This paper theoretically and experimentally investigates the mutual coupling between two ports of dual slot-coupled circular microstrip antennas. Presented are the effects of feed configuration, slot length, slot offset from the circular disk center, circular disk radius and the dielectric constant of the feed substrate on the mutual coupling. Based on these results, the antenna with low mutual coupling was designed. The mutual coupling of under -35dB at the resonant frequency was obtained.