静磁前向体波(MSFVW)激励特性研究  

A Study on the excitation of MSFVW

作　　者：陈戈林[1] 申忠明[1] 李鸿庆 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《声学学报》1993年第1期1-10,共10页Acta Acustica

基　　金：国家自然科学基金资助项目

摘　　要：本文从静磁波基本方程出发导出了MSFVW的色散特性和辐射阻抗关系式,得到MSFVW和诸因素的关系,讨论了这种波型的优点。建立了MSFVW实验装置,着重研究激励特性和结构参数的关系,实验结果和理论分析基本一致.最后还指出大功率长脉冲工作时MSFVW有不稳定和噪声增强现象.这在文献上尚未见到过同样报道。The MSFVW dispersion and radiation impedance formulas are derived from MSW equations. So the relation of MSFVW character with some factors is obtained. An experimental research on the excitation of MSFVW is finished. The result coincides with theoretical analysis well. Finally, the unstable and noise enhancement process is observed on higher power and wide pulse operation. This is first in the reference.

关 键 词：静磁波 激励 色散 噪声 静磁学 

分 类 号：O441.4[理学—电磁学]