Title :
Analysis of Fresnel field of a subreflector by an optimal use of FFT
Author :
D´Elia, Giuseppe ; Leone, G. ; Pierri, Rocco
Author_Institution :
CNR, Napoli, Italy
Abstract :
An iterative procedure based on pseudosampling is presented for the analysis of subreflector Fresnel fields on an arbitrary surface. The method improves the efficiency of the subreflector PO analysis which, today, is the only available technique for dichroic surfaces. The procedure retains all the advantages of the pseudosampling technique with respect to the computer time, mainly for multifeed illuminations and complex geometries.
Keywords :
antenna radiation patterns; antenna reflectors; antenna theory; fast Fourier transforms; iterative methods; FFT; Fresnel field; PO analysis; antenna radiation patterns; antenna theory; arbitrary surface; complex geometries; dichroic surfaces; fast Fourier transforms; iterative procedure; multifeed illuminations; pseudosampling; subreflector;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840225
