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A Hybrid Method of Moments-GTD Technique for Computing Electromagnetic Coupling Between Two Monopole Antennas on a Large Cylindrical Surface

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2 Author(s)
Steven A. Davidson ; Aeronautical Systems Division, Wright-patterson AFB, OH 45433 ; Gary A. Thiele

The problem of analyzing the electromagnetic interference (EMI) between two electronic systems when their antennas are located on or near large scattering objects is a difficult one. In this paper, a hybrid technique for combining the method of moments with the geometrical theory of diffraction (GTD) is extended to account for the mutual coupling between two monopole antennas on a large circular cylinder by means of curved surface-wave diffraction. The results of this technique are compared to those of an analysis program used by the United States Air Force which predicts electromagnetic coupling between aircraft antennas. The close agreement between the results of these two different analysis techniques serves to validate both computer programs.

Published in:

IEEE Transactions on Electromagnetic Compatibility  (Volume:EMC-26 ,  Issue: 2 )