PHASE AND TIME DELAYS FOR MICROWAVE SIGNALS USING PHOTOCARRIER DRIFT IN A SEMICONDUCTOR

We present and experimentally demonstrate, at 1.6 GHz, the generation of phase and time delays on microwave signals in a photoconductive sem iconductor, It takes advantage of the synchronous drift of photogenera ted carriers with a moving interference pattern, Phase and time delays are controlled according to the relative orientation of the moving in terference pattern with a high-speed photodetector array.