Citation
Abstract
In this article, a surface loss measurement technique using a TE,,,-mode circular waveguide cavity resonator is described. A novel feature of this technique is the use of a standard cavity, with a test sample (a flat plate) forming one of the end walls of the cavity. The unique properties of this cavity eliminate the need for intimate contact between the test surface and the rest of the cavity; a surface contact problem is thereby avoided. Precision Q-measurement equipment is required for this technique. Formulas for the surface resistivity of the sample as a function of the measured cavity Q are derived. Preliminary test data are presented and compared with predicted values, where available. The method described in this article appears to have a wide range of applicability.
Details
- Volume
- XII
- Published
- December 15, 1972
- Pages
- 59–67
- File Size
- 1.3 MB