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Simple Expression of Antenna Coupling by Using a Product of Radiation Patterns
Hiroaki MIYASHITA Isamu CHIBA Shuji URASAKI Shoichiro FUKAO
IEICE TRANSACTIONS on Communications
Publication Date: 1999/11/25
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Antennas and Propagation
approximate formula, far-field approximations, antenna mutual couplings, mutual impedances, mutual admittances, reaction integrals, wedge diffractions, GTD,
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Simple approximate formulas are obtained for the mutual impedance and admittance by using a product of radiation patterns of antennas. The formulas come from a stationary expression of the reaction integral between two antennas where far-field approximations are employed. The theory deals with antennas in free space as well as under the presence of a wedge. Two applications are given for microstrip antennas with experimental verifications.