SHORT-ENDED COAXIAL CYLINDER PROBE MEASURING BULK DIELECTRIC CONSTANT USING TDR

被引：2
|
作者：
Park, Young-Jin [1 ]
机构：
[1] KERI, Ansan, South Korea
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2009年 / 51卷 / 07期
关键词：
short-ended coaxial cylinder; dielectric constant measurement; time domain analysis; time domain reflectometry (TDR);
D O I：
10.1002/mop.24451
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：
A simple short-ended coaxial cylinder probe measuring bulk dielectric constant of porous media using time domain reflectometry (TDR) is presented. For the TDR application. reflection behavior of the probe is analyzed in time domain. For time domain analysis, first, input impedance of the probe is calculated using transmission line theory and impedance of each mode propagating in the probe. Second, reflection coefficient is obtained using the input impedance. For verification, a prototype is designed using analysis results and tested for the case of sand. The analysis results are in a good agreement with numerical simulations and measurements. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1638-1640, 2009 Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24451
引用
收藏
页码：1638 / 1640
页数：3
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