MAFIA在行波管多级降压收集极模拟中的应用

廖平; 杨中海; 李斌; 雷文强; 廖莉; 高迅鸿

MAFIA在行波管多级降压收集极模拟中的应用

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出版历程
- 收稿日期: 2003-10-27
- 修回日期: 2004-03-18
- 刊出日期: 2005-03-19

Application of MAFIA in Three-Dimensional Dynamic PIC Simulation of TWT Multistage Depressed Collector

摘要

摘要: 评述了传统二维稳态轨迹程序模拟多级降压收集极计算方法,同时提出了使用MAFIA+大信号分析软件对多级降压收集极进行全三维动态PIC模拟的方法和收集极效率简化计算公式。初步模拟实例表明该方法与实验结果吻合较好,为收集极的精确模拟和优化设计提供了新的途径。同时也指出了该方法存在的不足。
- 多级降压收集极; 行波管; 粒子模拟; MAFIA软件; 计算机辅助设计
Abstract: After analyzing the classic 2-D steady-state trajectory method for multistage depressed collectors simulation and design and its limitation, a novel method of full three-dimensional (3-D) dynamic PIC simulation using MAFIA a three dimensional electromagnetic finite integration code and large signal analysis code is presented. The simplified formula of collector efficiency is also put forward. The process and primary result of this method are described, which shows that the simulation results close to the experimental data within acceptable error range. It is the new approach to accurate simulation and engineering design and optimizing of multistage depressed collectors. Simultaneausly, the deficiency of this method is also pointed out.

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