Title :
A technique for analyzing finite frequency selective surfaces
Author :
Koleck, T. ; Diez, H. ; Bolomey, J.C. ; Mittra, R.
Author_Institution :
Dept. Antennes, CNES, Toulouse, France
Abstract :
The paper discusses two methods for addressing finite frequency selective surface (FSS) problem. The first of these deals with a relatively small-size FSS, which is treated via the spectral-Galerkin method that accounts for all of the interactions between the elements in a rigorous way. However, this method is not well-suited for larger surfaces as it places a heavy burden on the CPU time and memory requirements, both of which become unmanageably large very rapidly with increasing size. To circumvent this difficulty, we employ a second scheme based on the plane wave spectral decomposition approach, that enables us to treat the finite FSS problem as though it were doubly periodic and infinite.
Keywords :
Galerkin method; electric fields; electromagnetic wave scattering; frequency selective surfaces; integral equations; spectral analysis; CPU time requirements; EFIE; EM wave scattering; array antenna; doubly periodic problem; electric field integral equation; finite FSS problem; finite frequency selective surfaces; horn antenna; infinite problem; memory requirements; plane wave spectral decomposition; spectral-Galerkin method; Antenna theory; Current density; Fourier transforms; Frequency selective surfaces; Green function; Integral equations; Scattering; Surface treatment; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.625446