DocumentCode :
1232086
Title :
Complex Dielectric-Constant Measurements in the 100- to 1,000-Megacycle Range
Author :
Holtum, A.G., Jr.
Author_Institution :
Signal Corps Engineering Laboratories, Fort Monmouth, N.J.
Volume :
38
Issue :
8
fYear :
1950
Firstpage :
883
Lastpage :
885
Abstract :
A method is described wherein the dielectric constant and conductivity of lossy materials may be determined quickly and conveniently. A sample of the material is incorporated as the dielectric of a capacitor which acts as a load terminating a slotted measuring line. The complex impedance of this load can be determined by the conventional method from the voltage standing-wave ratio and position of the minimum. The inherent limitations of the method restrict its application to medium- and high-loss materials because of the very high standing-wave ratios encountered as the conductivity decreases. However, the dielectric constant alone may be measured for low-loss materials. Standardized components are used throughout, with the exception of the sample holder.
Keywords :
Capacitors; Conducting materials; Conductivity; Dielectric constant; Dielectric loss measurement; Dielectric materials; Dielectric measurements; Impedance; Transmission line measurements; Voltage;
fLanguage :
English
Journal_Title :
Proceedings of the IRE
Publisher :
ieee
ISSN :
0096-8390
Type :
jour
DOI :
10.1109/JRPROC.1950.234125
Filename :
1701349
Link To Document :
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