A new method for microwave dielectric measurement of low loss ceramics

被引：10

作者：

Chen, XP ^{[1
]}

Zhou, DX ^{[1
]}

Huang, GH ^{[1
]}

Xu, JM ^{[1
]}

Zhang, DL ^{[1
]}

Lu, WZ ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2003年 / 99卷 / 1-3期

关键词：

dielectric measurement; radial mode matching (RMM); resonant method;

D O I：

10.1016/S0921-5107(02)00507-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper a novel resonant method was proposed for the determination of dielectric constant and loss tangent of low loss ceramic materials used for dielectric resonators at microwave frequencies. The details of the design and fabrication of the cavity, the input and output coupling transmission lines and the substrate were discussed. The radial mode matching (RMM) technique was used to determine the exact frequencies of this resonant configuration as a function of the permittivity of the sample. And the relation between the loss tangent of the sample and the unloaded quality factor (Q(1)) of this structure was obtained on the basis of the electromagnetic field distribution. Some numerical results for the direct and inverse problems were presented to validate these relationships. The absolute uncertainties of the measurement were presented. Lastly the procedure of measurement was discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：390 / 393

页数：4

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