Ka波段曲折双脊波导行波管的研究  

A Ka-band folded double-ridged waveguide traveling-wave tube

作　　者：何俊[1] 魏彦玉[1] 宫玉彬[1] 段兆云[1] 王文祥[1] 

机构地区：[1]电子科技大学物理电子学院大功率微波电真空器件技术国防科技重点实验室,成都610054

出　　处：《物理学报》2010年第4期2843-2849,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60971038)资助的课题~~

摘　　要：提出了一种曲折双脊波导慢波结构,理论分析了慢波结构的高频特性,并在此基础上设计了工作在Ka波段的曲折双脊波导行波管.利用三维粒子模拟软件MAGIC3D建立了曲折双脊波导行波管模型,并对行波管中的注-波互作用进行了模拟分析.在相同工作条件下,分析比较了曲折双脊波导行波管和曲折波导行波管的各种性能参量,从中发现:在行波管增益峰值相近的情况下,曲折双脊波导行波管具有更好的带宽性能,其3dB增益带宽为22%;同时具有更高的电子效率,其峰值接近9%.A novel slow-wave structure（SWS）,the folded double-ridged waveguide structure,is presented and its properties used for wide-band traveling-wave tube（TWT） are investigated.A Ka-band folded double-ridged waveguide TWT is modeled by Magic 3D and the beam-wave interaction is simulated and analyzed.Within the same beam condition,it is concluded from the comparison of folded double-ridged waveguide TWT and folded waveguide TWT that：in the condition of similar gain maximum,the folded double-ridged waveguide TWT has wider bandwidth of which is 22%,and higher electron efficiency of which is 9%.

关 键 词：曲折双脊波导 高频特性 注-波互作用 带宽 

分 类 号：TN124[电子电信—物理电子学]