A system for testing multiple parameters of active aperture antenna subarrays

摘要

When a phased array antenna consists of a number of complex subarrays, efficient and accurate testing of the subarrays is essential for overall project success. This ppaer presents a flexible system for testing various parameters of a subarray of an active aperture phased array antenna including S-parameters, noise figure, spurs, oscillations, and peak and average power. Testing is done for both CW and a variety ofpulsed signals. A system block diagram is presented and system architecture explained. Timing dagrams are included for testikng multiple states (which corresond to antenna beams), channels, and frequencies. Measured verifidation results are presented.