OPTIMIZATION OF PARAMETERS OF MINIATURE MULTIBEAM KLYSTRODE
WITH DUAL-FREQUENCY DOUBLE-GAP RESONATOR 

 

V. A. Tsarev, I. V. Borodenkova

Yuri Gagarin State Technical University of Saratov, Saratov, Russia

 

The paper is received on July 17 2015 

 

Abstract.  The results of numerical simulation of the output characteristics of a miniature four-beam klystrode designed for operation in the frequency range 200-700 MHz with continuous output power of about 300 W in-band gain of 8 MHz are described. The results of experimental studies of the layout of the output two-mode double-gap resonator on the PCB are given. The possibility of independent tuning of the resonator simultaneously in-phase and anti-phase modes of oscillations, the frequencies of which correspond to the first and third harmonics of the input signal, is shown. The usage of single-stage recovery allows to increase technical efficiency to about 70%. The device can be used instead of the microwave tetrodes in phased array radar UHF.

Key words:  multibeam klystrode, numerical modeling, anode-grid characteristic, dual-frequency double-gap resonator, a printed circuit, efficiency, band gain.