Title :
Restoration of Piecewise-Constant Currents Distribution on Antenna Aperture Plane by Extension Minimum Method
Author :
Antropov, Oleg S. ; Borulko, Valentin F. ; Vovk, Sergey M.
Author_Institution :
Electron. & Comput. Syst. of Dnepropetrovsk Nat. Univ., Dnepropetrovsk
Abstract :
The problem of determination of distribution of currents on aperture plane from near-field antenna measurements is considered. Modification of extension minimum method is applied for currents estimation problem, which outperforms standard regularization technique, when there is a priori information about finiteness of unknown support of currents on aperture plane. Plane scanning geometry is used for numerical simulation. Results are presented for one-dimensional aperture case.
Keywords :
antenna radiation patterns; aperture antennas; current distribution; least mean squares methods; piecewise constant techniques; piecewise linear techniques; antenna aperture plane; currents estimation problem; extension minimum method; near field antenna measurements; numerical simulation; piecewise constant currents distribution; plane scanning geometry; Antenna measurements; Aperture antennas; Area measurement; Current distribution; Current measurement; Extrapolation; Information geometry; Inverse problems; Noise measurement; Signal restoration;
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 2007 XIIth International Seminar/Workshop on
Conference_Location :
Lviv
Print_ISBN :
978-966-02-4237-1
DOI :
10.1109/DIPED.2007.4373600
