Study on a W-band modified V-shaped microstrip meander-line traveling-wave tube  

作　　者：沈飞 魏彦玉 许雄 殷海荣 宫玉彬 王文祥 

机构地区：[1]National Key Laboratory of Science and Technology on Vacuum Electronics,University of Electronic Science and Technology of China

出　　处：《Chinese Physics B》2012年第6期239-244,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 60971038);the Fundamental Research Funds for the Central Universities (Grant No. ZYGX2009Z003)

摘　　要：The study on a miniaturized, low-voltage, wide-bandwidth, high-efficiency modified V-shaped microstrip meander-line slow-wave structure is presented. This structure is evolved from the original U-shaped microstrip meander-line slow-wave structure, combining the advantages of a traditional microstrip and a rectangular helix. In this paper, simulations of the electromagnetic characteristics and the beam-wave interaction of this structure are carried out. Our study shows that when the design voltage and the current of a sheet electron beam are set to be 4700 V and 100 mA, respectively, this miniature millimeter-wave power amplifier is capable of delivering 160-W output power with a corresponding gain of 37.3 dB and a maximum interaction efficiency of 34% at 97 GHz.The study on a miniaturized, low-voltage, wide-bandwidth, high-efficiency modified V-shaped microstrip meander-line slow-wave structure is presented. This structure is evolved from the original U-shaped microstrip meander-line slow-wave structure, combining the advantages of a traditional microstrip and a rectangular helix. In this paper, simulations of the electromagnetic characteristics and the beam-wave interaction of this structure are carried out. Our study shows that when the design voltage and the current of a sheet electron beam are set to be 4700 V and 100 mA, respectively, this miniature millimeter-wave power amplifier is capable of delivering 160-W output power with a corresponding gain of 37.3 dB and a maximum interaction efficiency of 34% at 97 GHz.

关 键 词：modified V-shaped microstrip meander-line millimeter-wave power amplifier beam-wave interaction slow-wave structure 

分 类 号：TN124[电子电信—物理电子学]