V. N. Apletalin, Yu. N. Kazantsev, A. N. Kozyr-kov, V. S. Solosin

Measurement technique peculiarities of complex permittivity and permeability of radio materials in the microwave range with the help of the Vector Network Analyzer are considered. Basic advantage of that technique is the possibility of elimination of influence of parasitic reflections and re-reflections in the measuring waveguide circuit on the measurement accuracy due to use of the direct and inverse Fourier transform of measuring data for the reflection and transmission coefficients, obtained on the frequency grid. Measuring circuits and basic calculated relations are presented, and measuring peculiarities of resonant frequencies and Q-factors are considered. Experimental measurement results of the electromagnetic parameters for some polymer composite magnetic dielectrics are presented.