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

fYear

1996

fDate

15-18 Oct 1996

Firstpage

52

Lastpage

57

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Phased Array Systems and Technology, 1996., IEEE International Symposium on

Conference_Location

Boston, MA

Print_ISBN

0-7803-3232-6

Type

conf

DOI

10.1109/PAST.1996.565934

Filename

565934