Comparison of Cavity and Open-Resonator Measurements of Permittivity and Loss Angle at 35 GHz

A comparison has been made between cavity and open-resonator measurements of permittivity ϵ' and dielectric loss angle δ at 35 GHz. Two comparisons were made, the first using one set of samples of unsintered polytetrafluoroethylene measured in both systems and the second using two sets of simil...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 1974-12, Vol.23 (4), p.438-442
Main Authors: Cook, Raymond J., Jones, R. Gareth, Rosenberg, Christopher B.
Format: Article
Language:English
Subjects:
Copper
Density measurement
Dielectric loss measurement
Dielectric losses
Dielectric measurements
Loss measurement
Microwave measurements
Permittivity measurement
Q measurement
Wavelength measurement
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Summary:A comparison has been made between cavity and open-resonator measurements of permittivity ϵ' and dielectric loss angle δ at 35 GHz. Two comparisons were made, the first using one set of samples of unsintered polytetrafluoroethylene measured in both systems and the second using two sets of similar samples, one set measured in each system, of a high density polyethylene (Rigidex 2000), cut from the same rod. The measured values of ϵ' and δ obtained by the two systems agreed within the limits of the experimental errors. The standard deviations obtained for ϵ' and δ were 0.0021 and 2.1 μrad, respectively. A discussion of the uncertainties associated with each measured parameter is given.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.1974.4314330