학술논문

Efficiency Enhancement for an S-Band Axial Vircator Using 5-Stage Two-Step Tapered Radiators
Document Type
Conference
Source
2022 23rd International Vacuum Electronics Conference (IVEC) Vacuum Electronics Conference (IVEC), 2022 23rd International. :83-84 Apr, 2022
Subject
Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Power, Energy and Industry Applications
Particle beams
Codes
Voltage
Vacuum electronics
Electromagnetics
Oscillators
Cathodes
HPM
Vircator
multistage
reflectors
high-efficiency
plasma frequency
Language
Abstract
An S-band multistage axial virtual cathode oscillator with efficiency enhancement for high pulsed power electromagnetic applications is presented. The Particle-in-Cell (PIC) results of the designed 5-stage Vircator, with two-step negative tapering in the reflectors, carried out by CST Studio suite 2021 simulation code show a peak power value of 5.54 GW and an efficiency value of 13.65% at 2.45 GHz, under a beam voltage and current equal to 520 kV and 20 kA, respectively.