Microwave Measurements of Dielectric Properties – A Further Study to a New Theoretical Model for a Closed Cylindrical Cavity Dielectric Resonator
Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany
Proceedings: EuCAP 2009
Pages: 4Language: englishTyp: PDF
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Authors:
Sheen, Jyh; Hong, Zuo-Wen (Department of Electronic Engineering, National Formosa University, Hu-Wei, Yun-Lin 632, Taiwan)
Chen, Chin-An (Department of Electronic Engineering, Oriental Institute of Technology, Pan-Chiao, Taipei 220, Taiwan)
Chen, Yi-Hua; Lai, Chin-Lun (Department of Communication Engineering, Oriental Institute of Technology, Pan-Chiao, Taipei 220, Taiwan)
Abstract:
A low loss measurement technique for complex permittivity, using a closed cylindrical cavity resonator, is investigated. The measurements are made at the resonant frequency of the TE01delta mode with a new modified field model, which provides a very simple and clear description of the field distribution within the resonator. The various aspects of the conductor loss are studied. The perturbation methods and their accuracies for calculating the conductor loss and the energy factor are compared with the traditional calculation methods. The improvement of the modified field model to the unmodified is justified by experimental results on dielectric constant measurements.