The results of the study of the structure and radiophysical properties in the frequency range 1-60 GHz composite hexagonal ferrites with different impurity content at the boundaries of crystallites. It is shown that the presence of impurities and their influence on the radiophysical characteristics of ferrite [1-3] allows to synthesize both radio-transparent and radio-absorbing materials. Materials with controlled electrical and magnetic properties will be effective in creating absorbers with a specified level of absorption, transmittance and reflection coefficients. Electrodynamic properties of ferromagnetic fillers with radio absorbing properties depend on the magnetic and dielectric permeability of the composite material. Technology of synthesis of ferromagnetic fillers is developed and types of complexes which can be entered in the received composition are defined. For this purpose, the contribution of the proposed complexes to the magnetic and dielectric permeability of the obtained materials is determined.
composite ferrite, ferromagnetic filler, dielectric and magnetic permeability