PT Journal
AU Polyakova, ON
   Tikhonov, VV
   Dzardanov, AL
   Boyarskii, DA
   Gol’tsman, GN
TI Dielectric characteristics of ore minerals in a 10–40 GHz frequency range
SO Tech. Phys. Lett.
JI Tech. Phys. Lett.
PY 2008
BP 967
EP 970
VL 34
IS 11
DI 10.1134/S1063785008110205
DE ore minerals; complex permittivity; sphalerite; magnetite; labradorite
AB A new approach to investigation of the complex dielectric permittivity of both nonmetallic and ore minerals in the microwave frequency range is proposed. Using this approach, data on the complex permittivity of sphalerite, magnetite, and labradorite in a 10–40 GHz frequency range have been obtained for the first time. A method is proposed for calculating the complex permittivity from experimentally measured frequency dependences of the reflection and transmission coefficients of a plane-parallel plate of a given mineral. Approximate expressions that can be used for calculations of the complex refractive index and permittivity of minerals are presented.
ER