Title :
An efficient approach to estimation of Fresnel zone fields
Author_Institution :
North-Western China Res. Inst. of Electronical Equipment, Xi´an, Shaanxi, China
fDate :
June 28 1993-July 2 1993
Abstract :
An efficient approach to estimation of Fresnel zone fields of electrically large aperture antennas is presented. The equivalent surface current or aperture field distribution is first expanded in Fourier-Bessel series. Fresnel zone fields within a small angle region are then expanded in Taylor or Laurent series according to where the observer is located.<>
Keywords :
Bessel functions; Fourier series; Fresnel diffraction; antenna radiation patterns; aperture antennas; current distribution; field equations; reflector antennas; Fourier-Bessel series; Fresnel zone fields; Laurent series; Taylor series; aperture field distribution; electrically large aperture antennas; surface current distribution; Apertures; Feeds; Fresnel reflection; Green function; Scattering;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385236
