红外与毫米波学报2023，Vol.42Issue(6)：772-779,8.DOI:10.11972/j.issn.1001-9014.2023.06.010
一种具有双输出端口的200-kW Ka波段速调管的集成互作用电路设计
Design of the integrated interaction circuits for a 200-kW Ka-band klystron with two output ports
摘要
Abstract
In this paper,an efficient resonant circuit based on integrated interaction units is proposed to improve the beam-wave interaction for increasing the peak power of a Ka-band klystron to 200 kW.The integrated-unit cir-cuit is designed with connecting two or several single-beam-wave interaction units across the cross section(each of which is typically used in a conventional single-beam klystron)based on the cascaded field structure in the rect-angular gap waveguide with specific fusion boundary conditions.For the input cavity,two interaction units have been efficiently integrated to obtain the optimal absorption efficiency with the constant input power at～35 GHz,through optimizing both the beam-loading parameters and cavity parameters.The output cavity has been 1)de-signed with two output ports for balancing the effect of the power extraction on the integrated circuit,and 2)opti-mized to deliver 200-kW peak power through injecting two pre-modulated beams.The overall interaction circuit of a Ka-band klystron is accordingly designed to produce the peak power of 202.9-kW with the efficiency of 40.2%and the maximum gain of 47 dB using particle-in-cell(PIC)simulations,when the two beams with the voltage of 45 kV and every current of 5.6 A are used to drive the klystron.关键词
速调管/分布式电子束/集成互作用单元/高功率毫米波源/真空电子学Key words
klystrons/distributed beam/integrated interaction unit/high power millimeter-wave sources/vacuum electronics分类
信息技术与安全科学引用本文复制引用
毕亮杰,蒋欣宇,李海龙,王彬,蒙林,殷勇..一种具有双输出端口的200-kW Ka波段速调管的集成互作用电路设计[J].红外与毫米波学报,2023,42(6):772-779,8.基金项目
Supported by the Natural Science Foundation of Sichuan Province(2023NSFSC1376) （2023NSFSC1376）
