A new approach to the comparison of microwave methods used at dielectric constant assessment

The paper deals with some methods for relative permittivity of dielectric materials measurement and with the relevant techniques. In addition to current methods of measurement evaluation on vector network analyser (VNA) it gives also an information about possibility of classical methods using for evaluation of VNA application at measurements as a faster source of basis for computations. It is referred to the possibility of immediate use standing wave ratio (SWR) and phase after its simple adjustment for computations according to classical methods and for this purpose also necessary relations are given. In this context a reference is made to the needs of experimental arrangement on VNA. In the paper also an attention to a situation is paid when it is problematical to determine the unknown permittivity of solid material by usual methods.