Studies of the behavior of the permittivity in microwave region of solid materials according to the temperature variation

The precise knowledge of the permittivity is essential now. Besides, relationship with temperature become inescapable following the target applications of the radiofrequencies systems and hyper frequency, like biomedical applications, aeronautics... To know the dependence on temperature of the permittivity we propose a setup based on a coaxial line system upgraded with a heating component. In this study, we are presenting some results on solids materials. We explain the limits of our measurement setup and how we can solve them.