A low voltage one centimeter retarding-field oscillator

The retarding-field oscillator is similar in operation and applications to the reflex klystron but is simpler in structure. In this paper a new low-voltage design is described and some of its experimental characteristics are presented. These include a power output in excess of 40 milliwatts in the wavelength range 0.9-1.1 cm with an anode potential of 400 volts and a beam current of 26 milliamperes. A brief comparison is made between this low voltage retarding-field oscillator and known available reflex klystrons.