Measurement of Dielectric Constant and Loss Factor of Powder Materials in the Microwave Region
- 1 March 1967
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 38 (3) , 384-386
- https://doi.org/10.1063/1.1720711
Abstract
A system has been developed to measure the dielectric properties of powder materials using X band microwave frequencies. The measurement is conducted in a microwave cavity oscillating in the TM012 mode and resonant at 9.4kMc. Relatively small amounts of material are needed, and samples are introduced into the cavity using a quartz tube. The limitation of the perturbation theory as a basis for computation is examined experimentally. The suitability of different equations correlating the apparent dielectric constant of the powder material with the intrinsic values of the solid (crystalline or fused solids) is demonstrated by the data.Keywords
This publication has 1 reference indexed in Scilit:
- New Technique for Measurement of Microwave Dielectric ConstantsReview of Scientific Instruments, 1961