Title :
Matrix method for near-field diagnostic techniques of phased arrays
Author :
Gattoufi, L. ; Picard, D. ; Rekiouak, A. ; Bolomey, J.-Ch.
Author_Institution :
Lab. des Signaux et Syst., Ecole Superieure d´´Electr., Gif-sur-Yvette, France
Abstract :
Near-field measurements can be used as diagnostic tools to reconstruct the aperture field distribution of planar array antennas and to locate their possible defective elements. A method for obtaining the individual element excitation of an array antenna from measured near-fields is presented. A computer simulation is performed to evaluate the effect of various near-field parameters such as the measurement distance and the sample spacing on the reconstruction of the excitation. The validity of the approach has been verified using both synthetic and actual measurements data. Good results have been obtained
Keywords :
antenna phased arrays; antenna radiation patterns; antenna testing; matrix algebra; aperture field distribution; computer simulation; defective elements; diagnostic tools; element excitation; excitation reconstruction; matrix method; measured near-fields; measurement distance; measurements data; near-field diagnostic techniques; near-field measurements; near-field parameters; phased arrays; planar array antennas; sample spacing; Antenna arrays; Antenna measurements; Antennas and propagation; Apertures; Inverse problems; Performance evaluation; Phase measurement; Phased arrays; Planar arrays; Transmission line matrix methods;
Conference_Titel :
Phased Array Systems and Technology, 1996., IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-3232-6
DOI :
10.1109/PAST.1996.565934
