Whispering-gallery modes in shielded hemispherical dielectric resonators

被引：11
|
作者：
Eremenko, ZE [1 ]
Filipov, YF [1 ]
Kharkovsky, SN [1 ]
Kutuzov, VV [1 ]
Kogut, AE [1 ]
机构：
[1] Natl Acad Sci Ukraine, Usikov Inst Radiophys & Elect, UA-61085 Kharkov, Ukraine
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2002年 / 50卷 / 11期
关键词：
cylindrical shield; field distribution; Q factor; shielded hemispherical dielectric resonator (SHDR); whispering-gallery (WG) modes;
D O I：
10.1109/TMTT.2002.804627
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The results of the numerical and experimental investigations of whispering-gallery (WG) modes in shielded hemispherical dielectric resonators are presented in this paper. It is shown that the Q factor of WG modes in the shielded resonator can be ten times much higher than the Q factor of the similar open hemispherical dielectric-resonator modes. Shielding the resonator can decrease the dimensions of both the dielectric hemisphere and resonator as a whole, saving the high-Q factor of WG modes. The usage of a cylindrical shield and local flat reflectors in the experiment provides the investigation of the high-Q factor of WG modes in the resonator.
引用
收藏
页码：2647 / 2649
页数：3
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