| 1. | The conception of collector efficiency is defined
定义了收集极效率的概念。 |
| 2. | Investigation of collectors ' electric field based on finite element analysis
基于有限元法的收集极电场的分析 |
| 3. | These research level and new simulation software for mdc are described
介绍了多级降压收集极的计算机模拟的研究情况。 |
| 4. | Chapter 3 describes the equations concerned with the simulation of mdc
第三章介绍了多级降压收集极模拟计算涉及的物理方程。 |
| 5. | The multistage depressed collector ( mdc ) is an important method of improving the twt efficiency
采用多级降压收集极( mdc )是提高行波管效率的重要方法。 |
| 6. | A planar sige heterojunction bipolar transistor was fabricated using polysilicon emitter technology and sige base grown by molecular beam epitaxy . the sige hbt
室温下该晶体管的直流电流增益为30到50 ，基极开路下，收集极-发射极反向击穿电压 |
| 7. | In chapter 2 , the principles of mdc for twts , refocusing and the influence of the secondary electrons are analyzed . the electron energy entering the collector is analyzed
第二章从分析互作用后电子能量分布入手,分析多级降压收集极的工作原理、再聚焦原理和次级电子的影响。 |
| 8. | In euv and soft x - ray band , the most often used detector is ion chamber with rare gas , from whose collective electrode we can directly calculate intensity of photon flux
在极紫外和软x射线波段常用的探测器是稀有气体电离室，可以通过电离室收集极的收集电流直接计算出光子流强度。 |
| 9. | Simulating the electronic devices by computers , can make the design cost effective and reduce the repetition in the fabrication process . the scope of this is concerned with the study and simulation of mdcs to improve the efficiency
本论文是基于提高行波管收集极效率来提高整管效率,借助于计算机辅助设计软件对轴对称结构降压收集极设计进行研究。 |
| 10. | A mdc with a refocusing system is simulated with the help of a 2 . 5 - dimensional ( 2 . 5 - d ) software , in which the secondary electrons are considered . these jobs offer a guarantee for the improvement of the tube efficiency . the organization of this paper is as follows
论文的主要内容概括如下:在第一章概述中,首先介绍了行波管及其发展情况,接着介绍了多级降压收集极和效率问题,分析了提高效率的方法。 |
