The results of the study saturation magnetization and crystallographic anisotropy doped with diamagnetic ions of hexagonal ferrites are presented. It is shown that the impedance matching properties of ferrimagnetic fillers depend on equality values of magnetic and dielectric permittivity composite material in the working wave band. The contribution of the proposed replacement complexes to the magnetic and dielectric permittivity resulting materials is determined. Magnetostatic and electrodynamic properties of composites based on doped hexaferrites type M and Z are studied. Hexagonal ferrites, which play the role of an impedance matching medium in frequency range 0.1-3 GHz, are obtained. Recommendations are offered on the possibility using impedance matching composite hexagonal ferrites in the development filtering and frequency separation systems.
The results of numerical electrodynamic modeling and experimental research of slotted waveguide radiator is presented. The operational frequency was decreased on 25%. It was found that the differences between the experimental and calculated characteristics are associated with the following factors: the inaccuracy of manufacture of the geometric dimensions of the slotted waveguide radiator, methodical error of the finite element method in calculating the characteristics, inaccuracy of the values of the relative permittivity and magnetic permeability.