Title :
Automatic diagnostic and localization of defective elements in phased array antennas
Author :
Ghannouchi, F.M. ; Kouki, A.B. ; Khebir, A.
Author_Institution :
Microwave Res. Lab., Ecole Polytech. de Montreal, Que., Canada
fDate :
June 28 1993-July 2 1993
Abstract :
A novel method for the diagnosis and localization of defective elements of feed network branches in large phased array antennas has been proposed and experimentally validated. A passive microwave comparer circuit is introduced which can be permanently integrated, in large numbers, in the phased array and will then be able to perform the functions of fault diagnostic and defective element localization. To validate the feasibility of the proposed technique, the complex ratio of two independent signals exciting two loads with the aid of a comparer circuit was measured.<>
Keywords :
antenna feeds; antenna phased arrays; antenna testing; comparators (circuits); fault diagnosis; fault location; microwave integrated circuits; passive networks; defective element localization; fault diagnostic; feasibility; feed network branches; passive microwave comparer circuit; phased array antennas; Antenna arrays; Antenna measurements; Attenuators; Calibration; Integrated circuit measurements; Microwave antenna arrays; Phase measurement; Phase shifters; Phased arrays; Transmission line measurements;
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.1993.385366
