Experimental 800 MBIT/S - 4PSK Transmitter and Receiver for Circular Waveguide

An experimental 800 Mbit/s trans-receiver for circular waveguide application has been designed and realized at GTE-Telecomunicazioni Transmission Laboratory as a part of an Italian research program on high capacity mm-wave communication systems. The whole program [1] [2] is sponsored by the Italian Post and Telecommunication Office (ISPT). The equipment consists of a 41 GHz four-phase transmitter operating at 800 Mbit/s and of a corresponding receiver featuring coherent demodulation at 3.6 GHz IF frequency and regeneration of the received digital signal. The equipment is described in some detail and the measured system performances are also given and briefly discussed.