WAVE-GUIDE CAVITY PERTURBATION METHOD FOR MEASURING COMPLEX PERMITTIVITY OF WATER

被引：22

作者：

MATHEW, KT

RAVEENDRANATH, U

机构：

[1] Department of Electronics, Cochin University of Science and Technology, Cochin

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 1993年 / 6卷 / 02期

关键词：

WAVE-GUIDE CAVITY; PERTURBATION; Q-FACTOR; COMPLEX PERMITTIVITY;

D O I：

10.1002/mop.4650060206

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：

An accurate method of measuring the complex permittivity of high-loss liquids like water by use of a waveguide perturbation technique is presented. The sample taken in a thin capillary tube of low-loss material is inserted in the S-band waveguide cavity. Resonance frequency and frequency shift are measured with a H.P. network analyzer and the complex permittivity is calculated. This method is particularly useful in the case of high-loss liquids. Another advantage of this method is that only a very small quantity of liquid is needed for the study.

引用

页码：104 / 106

页数：3

共 30 条

[21] Measurements of complex permittivity at millimeter-wave frequencies with an end-loaded cavity resonator
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