Electromagnetic wave absorption characteristics of Mg–Ti substituted Ba-hexaferrite

Development of novel magnetic-dielectric ceramics for enhancement of reflection loss in X band

“…The obtained results are tabulated in Table 3. It is observed that two reflection dips were appeared in the whole series of the nanocomposite samples, which could be attributed to domain wall resonance and natural resonance [27,28]. The maximum reflection loss value of CCTO is about À5 dB.…”

Effect of carbon shell thickness on the microwave absorption of magnetite-carbon core-shell nanoparticles

“…10. Based on the transmission where Z in is the composite impedance, Z 0 is the intrinsic impedance of free space, t is the thickness of absorber layer, c is the free space velocity of light, f is the incident wave frequency, m r is the relative complex permeability, and ε r is the relative complex permittivity of the composite layer [26]. The best absorbing performance based on R.L parameter is the situation in which smaller (more negative) R.L values are achieved over a wider frequency range and thinner composite layer thickness.…”

Microwave Absorbing Properties of Ba0.6Sr0.4Fe12-zMnzO19 (z = 0 – 3) Materials in XBand Frequencies

“…Therefore, some intrinsic properties of its magnetic phase, such as the anisotropy constant, which governs the coercivity value, have to be reduced. Reduction of the anisotropy constant of barium-strontium hexaferrite modification is primarily required since a substantially low coercivity and high magnetization are the most important properties required for microwave absorber applications [4][5].…”