小型氢频标磁控管微波腔与空型腔性能的比较  

A Comparison of the Properties of Magnetron Type Cavity and Empty Type Cavity in Small-scaled Hydrogen Maser

作　　者：雒向东[1,2] 罗崇泰[1] 

机构地区：[1]中国空间技术研究院兰州物理研究所,甘肃兰州730000 [2]兰州城市学院培黎工程技术学院,甘肃兰州730070

出　　处：《甘肃科学学报》2009年第1期24-27,共4页Journal of Gansu Sciences

基　　金：甘肃省自然科学基金暨中青年科技基金项目(3ZS052-B25-033)

摘　　要：用Ansoft HFSS仿真软件建立了小型氢频标空型和磁控管型微波腔模型结构,仿真了2种不同微波腔的谐振频率、品质因数和电磁场结构.通过比较发现空型微波腔当加入壳电极后,腔体内电磁场分布被改变,使得腔体轴线附近磁场分布更加均匀,而电场则主要分布在微波腔壳电极缝隙区域.The modes of magnetron type microwave cavity and empty type cavity in small-scaled hydrogen maser are established with Ansoft HFSS; the resonant frequencies,quality factors and electromagnetic field modes are simulated to the two different microwave cavities. By comparison,we find that the electromagnetic field structure of empty microwave cavity with electrodes is altered,and the magnetic field near the axis of magnetron type cavity is more homogeneous than that of empty type cavity,and the electric field of magnetron type cavity is mainly distributed in electrode gaps.

关 键 词：氢频标 磁控管腔 空型腔 模式结构 仿真分析 性能比较 

分 类 号：TM935.11[电气工程—电力电子与电力传动]