真空电子器件的粒子模拟方法  

Particle Simulation Method of Vacuum Electronic Devices

作　　者：王建国[1,2] 

机构地区：[1]西北核技术研究所,西安710024 [2]西安交通大学电子与信息工程学院,西安710049

出　　处：《现代应用物理》2013年第3期251-262,共12页Modern Applied Physics

基　　金：国家自然科学基金重点项目(61231003)

摘　　要：简要介绍了真空电子器件辐射原理和数值模拟方法,给出了粒子模拟方法的研究进展。讨论了真空电子太赫兹源器件的特点及其对数值模拟方法的要求。给出了高功率微波源和太赫兹源器件的数值模拟算例。提出了用于真空电子源器件模拟的PIC方法的未来技术发展,包括动量能量守恒的粒子模拟方法、精确的几何和物理建模、阴极发射模型、有耗介质的处理和基于全局优化的器件设计方法等。This paper briefly introduces the radiation principle and numerical simulation method of the vacuum electronic devices,and presents the research progress on the particle simulation methods.The characteristics of the vacuum electronic terahertz devices and its re- quirements on the numerical simulation methods are discussed.Some numerical simulation examples of the high power microwave and terahertz wave devices are given.This paper sug- gests some future technique developments on the numerical simulation methods of the vacu- um electronic devices,such as the particle simulation methods with the momentum and ener- gy conservations,accurate modeling and simulation methods,simulation models of the emis- sion from the cathode,modeling of lossy structures,and the global automatic optimization design method for the vacuum electronic devices.

关 键 词：真空电子器件 高功率微波 太赫兹波 PIC方法 

分 类 号：TN24[电子电信—物理电子学]