Modified Perturbation Method for Permittivity Measurements at Microwave Frequencies*
- 1 January 1974
- journal article
- research article
- Published by Taylor & Francis in Journal of Microwave Power
- Vol. 9 (4) , 317-328
- https://doi.org/10.1080/00222739.1974.11688929
Abstract
A method of permittivity measurement by a cavity perturbation technique is described. The cavity resonates in two modes at two different frequencies. Continuous measurement of the dielectric constant of a test sample can be performed using a low frequency digital counter (up to 500 MHz) while the loss factor can be determined from the difference in the transmission coefficients at the two resonant frequencies. Experimental results for rectangular and circular cylindrical geometries of cavities used for permittivity monitoring at 2450 MHz are also reported.Keywords
This publication has 0 references indexed in Scilit: