一种基于波导并联结构的高功率铁氧体移相器  

High power ferrite phase shifter based on structure of waveguide in parallel

作　　者：邓广健 黄文华[1] 李佳伟[1] 邵浩[1] 巴涛[1] 张治强[1,2] 

机构地区：[1]西北核技术研究所,高功率微波技术重点实验室,西安710024 [2]西安电子科技大学天线与微波技术国家重点实验室,西安710071

出　　处：《强激光与粒子束》2016年第8期69-73,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目

摘　　要：提出了一种多路波导并联结构,用于实现高功率移相器。目前的铁氧体移相器,为实现高功率容量,通常采用双铁氧体磁环结构。仿真分析了各尺寸参数对双环移相器传播模式、相移效率及功率容量的影响,并进行优化设计,使移相器功率容量达到百kW量级。基于双环形式,采用一种多路波导并联结构,使其功率容量达到MW量级。经匹配设计后,移相器在9.25～9.8GHz频率范围内,驻波比小于1.4,饱和差相移在390°左右,可实现X波段MW级高功率360°电控移相。A parallel waveguide structure for high power phase shifter is proposed.The ferrite phase shifter at present can achieve high power capacity with dual-toroids structure.The influence on the propagation,phase shift efficiency and power capacity of the dual toroids ferrite phase shifter of its parameters is simulated and analyzed in this paper.The peak power capacity can reach hundred kW level after optimization.By using parallel waveguide in parallel structure based on the dual-toroids form,it can be increased to MW level.After matching design,VSWR of the shifter is less than 1.4from 9.25 to 9.8GHz.The saturation differential phase shift is about 390 degrees.So this design can achieve 360 degrees electronically controlled phase shift above MW level in X band.

关 键 词：移相器 铁氧体 高功率容量 高次模 临界磁场强度 

分 类 号：TN61[电子电信—电路与系统]