HIGH-POWER PULSED RF AMPLIFIER USING ELECTRON TUBE-SEMICONDUCTOR CASCODE CIRCUIT

摘要

A high-power pulsed RF amplifier is provided to generate an RF output of high power as an RF output of low power by using an electrontube-semiconductor cascode circuit. A semiconductor switch(2) is connected to a cathode of an electrontube to constitute a cascode circuit. A power input member(13) applies a high voltage to an anode of the electrontube. A DC source input member(12) applies a DC power to plural auxiliary electrodes of the electrontube. A pulsed RF input member applies a pulsed RF driving power to the semiconductor switch. A pulsed RF output member(14) generates the pulsed RF output in the electrontube. An impedance matching member(15) controls impedance matching of the pulsed RF output.