Modeling cavity-backed apertures conformal to prolate spheroids using the finite element-boundary integral technique

Author

Macon, Charles A. ; Kempel, Lco C. ; Schneider, Stephen

Author_Institution

Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA

Volume

1

fYear

2002

fDate

2002

Firstpage

550

Abstract

The hybrid finite element-boundary integral (FE-BI) method is used to model the effects of curvature variation on the resonant input impedance of cavity-backed aperture antennas recessed in the surfaces of prolate spheroids of varying dimensions. In order to assess the validity of these results, the resonant input impedance of the conformal antenna, for the limiting cases of zero axial and azimuthal curvatures, are compared with the resonant input impedances of cavity-backed aperture antennas conformal to cylindrical and planar surfaces, respectively. Results for the input impedance associated with a patch antenna mounted in a cavity flush with the surface of a prolate spheroid is presented.

Keywords

aperture antennas; boundary integral equations; conformal antennas; electric impedance; finite element analysis; microstrip antennas; cavity-backed apertures; conformal antennas; finite element-boundary integral technique; patch antenna; prolate spheroids; resonant input impedance; Aperture antennas; Couplings; Finite element methods; Green´s function methods; Integral equations; Laboratories; Magnetic fields; Mesh generation; Military computing; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2002. IEEE

Print_ISBN

0-7803-7330-8

Type

conf

DOI

10.1109/APS.2002.1016405

Filename

1016405