Title :
A built-in performance-monitoring/fault isolation and correction (PM/FIC) system for active phased-array antennas
Author :
Lee, Kuan-Min ; Chu, Ruey-Shi ; Liu, Sien-Chang
Author_Institution :
Surface Syst. A&D Sector, Hughes Aircraft Co., Fullerton, CA, USA
fDate :
11/1/1993 12:00:00 AM
Abstract :
A built-in performance-monitoring/fault isolation and correction (PM/FIC) system for an active phased-array antenna has been developed and tested. This PM/FIC system employs a transmission line signal injector embedded at the radiating aperture together with a phase-toggling technique for signal detection. Hardware components for a demonstration test-array have been developed, fabricated, and assembled. Eight active elements are fed by four dual-channel transmit/receive (T/R) modules in a column array. Far-field range tests and fault correction tests have also been performed to demonstrate the PM/FIC functions on this test array. Good results have been obtained from these tests. The measurement accuracy of the phase-toggling method is compared with an HP8510 measurement system
Keywords :
active antennas; antenna phased arrays; antenna testing; measurement systems; radar antennas; HP8510 measurement system; PM/FIC system; active elements; active phased-array antennas; column array; dual-channel transmit/receive modules; far-field range tests; fault correction system; fault correction tests; fault isolation system; measurement accuracy; performance monitoring system; phase-toggling technique; radar antennas; radiating aperture; signal detection; test array; transmission line signal injector; Apertures; Calibration; Condition monitoring; Performance evaluation; Phase detection; Phase measurement; Radar; Signal detection; Signal processing; System testing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
