Estimation of permittivity of materials using sub-millimeter waves

Work presented in this abstract is aimed at reconstruction of relative electric permittivity. Recent real measurements gave rise to the progress of this research. Known dielectric materials as polytetrafluorethylen (Teflon), aluminium oxide, a generic black rubber, and their combinations were examined on higher range of frequencies to get some real data and to prove or to point out possible imperfections of the prepared inverse approach. A great novelty of this research is also in using sub-millimeter waves in measurements. © 2017 IEEE.Ministry of Education, Youth and Sports of the Czech Republic within the National Sustainability Programme project [LO1303 (MSMT-7778/2014)