Title :
Microwave Properties of Yarns and Textiles Using a Resonant Microwave Cavity
Author :
Kumar, Akhileshwar ; Smith, D.Geoffrey
fDate :
6/1/1977 12:00:00 AM
Abstract :
Modified cavity perturbation methods for permittivity measurements of yarn and textile are described. A cylindrical cavity which is split into equal parts is designed to operate in the TE011 mode. The dielectric yarn is placed across the midplane of the cavity and a textile sample is placed in the cavity on a low-loss dielectric sheet in annular form. The shift in the resonant frequency and change in Q-factor are measured and the complex permittivity is calculated.
Keywords :
Cavity perturbation methods; Cavity resonators; Dielectric materials; Permittivity measurement; Q factor; Resonance; Resonant frequency; Sheet materials; Textiles; Yarn;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.1977.4314502