Title :
Determination of the dielectric constant of materials from effective refractive index measurements
Author :
Abbas, Zulkifly ; Pollard, Roger D. ; Kelsall, Robert W.
Author_Institution :
Dept. of Electron. & Electr. Eng., Leeds Univ., UK
fDate :
2/1/1998 12:00:00 AM
Abstract :
This paper presents an extension to the rectangular dielectric waveguide technique to obtain the permittivity of samples iteratively from the effective refractive index measurements by using the solution of the wave equation. The effective refractive index is presented for several samples in the 33 GHz to 50 GHz frequency range. The method is very fast and simple and provides an accuracy of better than 1% for the determination of permittivity of materials
Keywords :
optical waveguides; permittivity measurement; rectangular waveguides; refractive index measurement; waveguide discontinuities; 33 to 50 GHz; dielectric constant; effective refractive index measurements; permittivity; rectangular dielectric waveguide; wave equation; waveguide discontinuities; Dielectric constant; Dielectric materials; Dielectric measurements; Frequency; Optical waveguide theory; Optical waveguides; Permittivity measurement; Rectangular waveguides; Refractive index; Waveguide discontinuities;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
