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Electromagnetic coupling and interference predictions using the frequency-domain physical optics method and the time-domain finite-element method [aircraft antenna applications]

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5 Author(s)
Riley, D.J. ; Northrop Grumman Corp., Albuquerque, NM, USA ; Riley, N.W. ; Clark, W.T., III ; Del Aguila, H.
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Two predictive techniques, the frequency-domain physical optics (PO) method, and the time-domain finite-element (TD FE) method, are presented with application to system-level electromagnetic coupling and interference issues. Full-wave solvers, such as finite-element and integral-equation methods, are very powerful but have practical upper frequency limits of application. The physical optics method, which has traditionally been used for far-field scattering and antenna pattern predictions, is shown in this paper to be useful for estimating on-platform antenna coupling. Although PO methods do not provide the fidelity and accuracy of full-wave methods, they can nevertheless often provide useful coupling estimates for the entire platform in a matter of seconds, whereas full-wave methods may take many hours (or days) of computation time and often solve only a subset of the overall platform. The utility of PO methods is demonstrated in this paper through validation of antenna coupling on a Boeing F15B.

Published in:

Antennas and Propagation Society International Symposium, 2004. IEEE  (Volume:1 )

Date of Conference:

20-25 June 2004

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