RCS study of cylindrical cavity-backed apertures with outer or inner material coating: the case of e-polarization
Author
Çolak, Dilek
Altıntaş, Ayhan
Nosich, A. I.
Date
1993Source Title
Proceedings of the Antennas and Propagation Society International Symposium, IEEE 1993
Publisher
IEEE
Pages
910 - 913
Language
English
Type
Conference PaperItem Usage Stats
173
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Abstract
Cavity-backed apertures (CBA) are encountered as parts of any airborne or spaceborne radar targets. Most familiar of them are, probably, air inlets and engine tubes, known to contribute a great deal to radar cross section (RCS) of jet aircraft. In the present study, the dual-series-based solution is obtained for the scattering of an E-polarized plane wave from the cavity-backed aperture which is formed by a slitted infinite circular cylinder coated with absorptive material. The material coating can be done on the inner or outer surface of the cylinder. For both cases, numerical results are presented for the RCS and comparisons of the suppression of RCS are given for two different realistic absorptive materials.
Keywords
AircraftCoatings
Electromagnetic wave polarization
Electromagnetic wave scattering
Numerical analysis
Cylindrical cavities
E polarization
Radar cross section