RU95103154A - Flight-pass microwave vacuum device which modulates beam current - Google Patents

Abstract

FIELD: microwave devices, in particular, amplifiers of microwave signals for TV and transmitting devices. SUBSTANCE: device has three-electrode electron gun, resonator unit which has input, penultimate and output resonators, flight-pass channel, input and output transmission elements, collector and feedback line between output and penultimate resonators. Feedback line phase length $$$ conforms to condition of $$$, flight- pass channel angle between resonators $$$ conforms to condition $$$. electron beam is accelerated in gap of penultimate resonator due to energy which is supplied by output resonator. Energy of electrons is increased according to increase in current level. This results in possibility of total absorption of power of electron beam when beam current varies in range of orders of magnitude. EFFECT: increased efficiency.

Claims (1)

The invention relates to microwave vacuum devices of the span type with modulation of the beam current and can be used as an amplifier of a microwave signal in television and communication transmitters. The proposed method comprises a triode electron gun, a resonator system, which includes an input, penultimate and output resonators, a passage channel, input and output communication elements, a collector, and a feedback line of the output resonator with the penultimate one. The phase length of the feedback line is selected from the condition described in the description. The flow is accelerated in the gap of the penultimate resonator due to the energy coming from the output resonator, and with increasing current, the electron energy increases, which ensures complete selection of energy from the electron beam when the beam current changes several times.