| 氢频标部分充填介质微波腔模式分裂的分析 |
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| 引用本文： | 曹昱,吕善伟,冯克明.氢频标部分充填介质微波腔模式分裂的分析[J].系统工程与电子技术,2005,27(7):1199-1202. |
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| 作者姓名： | 曹昱 吕善伟 冯克明 |
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| 作者单位： | 1. 北京航空航天大学电子信息工程学院,北京,100083
2. 中国航天科工集团二院203所,北京,100854 |
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| 摘 要： | 给出圆柱形谐振腔在部分充填圆环形介质时模式的解析分析方法,并根据介质接触面上所满足的导纳匹配条件,推导出微波腔中TE011模和TM111模的本征方程,由于介质的存在导致两个方程不同,使均匀腔中原本为简并模的TE011、TM111模谐振频率发生差异,即出现了模式分裂现象;并采用数值算法分别计算了不同介电常数、不同位置、不同厚度的圆环介质对于TE011模、TM111模谐振频率及两模式分裂程度的影响,得到有益的结论,对消除微波腔中简并模式的干扰有很好的借鉴意义。这解决了氢原子频标小型微波腔设计中TM111模模式抑制的问题。
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| 关 键 词： | 介质充填 圆柱形微波腔 TE011模 TM111模 模式分裂 氢原子频标 |
| 文章编号： | 1001-506X(2005)07-1199-04 |
| 修稿时间： | 2004年4月13日 |
Analysis of mode separation in dielectric-loaded cavities in hydrogen frequency standard |
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| CAO Yu,L Shan-wei,FENG Ke-ming.Analysis of mode separation in dielectric-loaded cavities in hydrogen frequency standard[J].System Engineering and Electronics,2005,27(7):1199-1202. |
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| Authors: | CAO Yu L Shan-wei FENG Ke-ming |
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| Institution: | CAO Yu1,L Shan-wei1,FENG Ke-ming2 |
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| Abstract: | The purpose of the paper is to deduce the mode separation between TE011and TM111mode in ring di- electric-loaded cylindrical cavities. Two characteristic equations of TE011and TM111mode are obtained in ring dielec- tric-loaded cylindrical cavities. The mode separation between the degenerate modes of TE011and TM111can be conclud- ed from two equations. The ring dielectric of different permittivity, different location and different thickness is calcu- lated by numerical method to study the influence to TE011and TM111mode and excited result is concluded. This con- clusion is helpful to eliminate the unwanted degenerate modes in hydrogen frequency standard. |
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| Keywords: | dielectric-loaded cylindrical cavity TE011mode TM111mode mode separation hydrogen frequen- cy standard |
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