Title :
Turnstile reflecto-polarimeter using the principal incidence method: Determination of permittivities up to 1200°C and industrial applications
Author :
Bretenoux, Alain ; Marzat, Cl ; Sardos, Rene
Author_Institution :
Lab. de Phys., Bordeaux I Univ., Talence, France
fDate :
11/1/1993 12:00:00 AM
Abstract :
Having designed a free-space reflecto-polarimeter at 10 and 35 GHz using circular horns and turnstile analyzers, the authors proceed to use this device to measure the dielectric constants of various substances at temperatures up to 1200°C. Prismatic samples are used to eliminate the influence of the back face of the sample as well as that of interference phenomena. Some results are given, and also a practical application of principal- or Brewster-angle incidence to the heating of substances using microwaves is described
Keywords :
microwave measurement; microwave reflectometry; permittivity measurement; polarimeters; radiofrequency heating; reflectometers; 10 GHz; 20 to 1200 C; 35 GHz; Brewster-angle incidence; circular horns; dielectric constant measurement; free-space reflecto-polarimeter; industrial applications; microwave heating; permittivity measurement; principal incidence method; prismatic samples; turnstile analyzers; turnstile reflecto-polarimeter; Dielectric constant; Dielectric measurements; Electromagnetic heating; Equations; Helium; Interference elimination; Microwave theory and techniques; Optical reflection; Permittivity measurement; Temperature;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
