Title :
Millimeter-wave properties of TGS ferroelectric crystal near phase transition
Author :
Golikov, F.V. ; Ovtchinnikova, G.I. ; Pirogov, Yu.A.
Author_Institution :
Lomonosov (M.V.) State Univ., Moscow, Russia
Abstract :
The temperature dependencies of both reflection and absorption coefficients measured at the two frequencies of 37.5 and 38.4 GHz has been compared to the real and imaginary parts of the microwave dielectric permittivity of TGS crystal near phase transition. It was shown that there is a good agreement between the temperature behavior of microwave dielectric permittivity and the wave characteristics measured at the same frequencies. It means that one can predict the dielectric properties of ferroelectrics measuring only wave characteristics modified by the presence of the crystal.
Keywords :
absorption coefficients; dielectric-loaded waveguides; ferroelectric materials; ferroelectric transitions; millimetre wave measurement; permittivity measurement; rectangular waveguides; 37.5 GHz; 38.4 GHz; TGS crystal loaded rectangular waveguides; TGS ferroelectric crystal near phase transition; crystal modified wave characteristics measurement; dielectric spectroscopy; ferroelectric materials; measurement frequencies; microwave dielectric permittivity measurement; microwave dielectric permittivity real/imaginary parts; mm-wave properties measurement; reflection/absorption coefficient temperature dependencies; structural phase transitions; triglycine sulphate; Dielectric measurements; Electromagnetic wave absorption; Ferroelectric materials; Frequency measurement; Microwave measurements; Millimeter wave measurements; Permittivity measurement; Phase measurement; Reflection; Temperature dependence;
Conference_Titel :
Infrared and Millimeter Waves, 2002. Conference Digest. Twenty Seventh International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7423-1
DOI :
10.1109/ICIMW.2002.1076142
