Giant antiresonance in electromagnetic wave reflection from a 3D structure with ferrite spinel nanoparticles

Transmission of Microwaves through the Composite Material with Fe–Si–Nb–Cu–B Alloy Particles

“…The calculation is performed as follows. The transmission D(H) and reflection R(H) ratios are expressed by the formulas [9] (6) (7) In these formulas, d is the sample thickness, a is the size of the larger wall of a rectangular waveguide, is the constant of TE 10 wave propagation in a sample, and is the ratio of equivalent resistances for the waveguide areas, among which one is filled with a sample (Z 2 ) and the other is not filled…”

“…The propagation constant β 2 can be calculated by Eq. ( 9) (9) For the waveguide area without a sample, it is necessary to set ε eff = 1 and μ eff = 1 in Eqs. ( 8) and ( 9).…”

“…An increased capability for electromagnetic shielding was revealed in the composites with lamellar particles [7,8]. In the frequency range from 2 to 18 GHz, good absorbing properties were obtained for the composites with Fe 16 Ni 82 Mo 2 alloy particles in an epoxide matrix [9].…”

“…shaped as a plate [9]. A sample was placed into a rectangular waveguide cross section so as to completely overlap it (Fig.…”

Ferromagnetic Resonance and Antiresonance in Composite Medium with Flakes of Finemet-Like Alloy

“…The DC conductivity of the samples was very low. The microwave measurements were carried out at frequencies from 12 to 38 GHz, using the methods described in [12]. All microwave measurements were performed at room temperature.…”