RF Power Solid State Amplifiers for Microwave Radio

In this paper solid state microwave power amplifiers, which have been developed by GTE Telecomunicazioni for radio link equipments, are described. The main advantages of these "division multiplication" amplifier systems are considered, with reference to both the high overall efficiency and output power. Particular attention is paid to the performance improvements obtained by using broadband thin film frequency multipliers and transistorized microwave dividers.