Simulation Design of a Ka-Band Helically Corrugated Waveguide Gyro-TWA Based on Axis-Encircling Electron Beam

IF 1.3 4区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

IEEE Transactions on Plasma Science Pub Date : 2024-11-19 DOI:10.1109/TPS.2024.3495986

Ruiqi Lu;Qiao Liu;Qixiang Zhao;Jialang Ling;Chaojun Lei;Dongshuo Gao;Xu Zeng;E’Feng Wang;Jinjun Feng

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引用次数: 0

Abstract

Gyrotron traveling wave amplifiers (Gyro-TWA) have both the characteristics of high power and broadband, which have wide application prospects in many important military fields, such as millimeter wave detection, high-resolution imaging radar, electronic countermeasures, and so on. The gyro-TWA based on axis encircling electron beam can stably operate at high-order harmonic state, reducing the operating magnetic field linearly proportional with the harmonic number and even achieving superconducting free operation. It can improve the flexibility and maneuverability of gyro-TWA. In this article, a Ka-band second-harmonic gyro-TWA with an interaction circuit of helically corrugated waveguide (HCW) is designed. The simulation results indicate that the gyro-TWT driven by a 75-kV, 7-A axis-encircling electron beam can achieve about 160-kW maximum power with a saturation gain of 29 dB, an efficiency of 30.48%, and a bandwidth of 4 GHz from 27 to 31 GHz. Meanwhile, the design details of the circular polarizer and input coupler are reported.

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来源期刊

IEEE Transactions on Plasma Science 物理-物理：流体与等离子体

CiteScore

3.00

自引率

20.00%

发文量

538

审稿时长

3.8 months

期刊介绍： The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.