The effect of ambient temperature on eigenfrequencies of a quasi-optical cylindrical dielectric resonator

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• 作者：A. V. Dormidontov (1260)
  Yu. V. Prokopenko (1260)
  
• 刊名：Technical Physics Letters
• 出版年：2013
• 出版时间：April 2013
• 年：2013
• 卷：39
• 期：4
• 页码：393-396
• 全文大小：166KB
• 参考文献：1. M. E. Il’chenko, V. F. Vzyatyshev, L. G. Gasanov, et al., / Dielectric Resonators (Radio i svyaz- Moscow, 1989) [in Russian].
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  7. A. Ya. Kirichenko, Yu. V. Prokopenko, Yu. F. Filippov, and N. T. Cherpak, / Quasi-Optical Solid-State Resonators (Naukova Dumka, Kiev, 2008) [in Russian].
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• 作者单位：A. V. Dormidontov (1260)
  Yu. V. Prokopenko (1260)
  
  1260. Usikov Institute of Radiophysics and Electronics, National Academy of Sciences of Ukraine, 61085, Kharkiv, Ukraine
  
• ISSN：1090-6533

文摘

Effects of the temperature and refractive index of ambient air on the eigenfrequencies of a cylindrical dielectric resonator (CDR) featuring whispering-gallery modes have been studied. An attempt to separate the effects of two factors on the spectral and energy characteristics of a fluoroplastic CDR for a millimeter wavelength range has been made for the first time. It is established that the behavior of CDR eigenfrequencies and the stability of Q factors exhibit different characters when the temperature is varied from ?0 to +60°C and the permittivity of air is changed from 1 to 1.0004. A CDR can be used as a sensor of ambient temperature accurate to within 10? K, provided that the resonance frequencies in the millimeter wavelength range are measured to within 1 kHz.