The influence of different Ni contents on the radar absorbing properties of FeNi nano powders

Abstract

Absorbing property of Fe20Ni80 nanopowder was better than that of other Fe100−xNix powder fabricated by liquid phase reduction method. Absorbing band could be effectively broadened and absorbing property improved through optimal structural designs.

Enhancing the Performance of the Microwave Absorbing Materials by Using Dielectric Resonator Arrays

“…In the following context we show one of these published results compared with our simulation results. The setup of that published work is in the form of a MA layer backed by a PEC ground plane as shown in the inset of Figure 4, taken from [13]. Good agreement between the results of our simulation and those from [13] is obtained, as shown in Figure 3.…”

“…The setup of that published work is in the form of a MA layer backed by a PEC ground plane as shown in the inset of Figure 4, taken from [13]. Good agreement between the results of our simulation and those from [13] is obtained, as shown in Figure 3. This comparison shows that the simulation setup used in this work and the obtained results are quite accurate and realistic.…”

“…The MA-CDR array is modeled by infinite 2D array in the and directions and composed of identical circular cylinders that are arranged in square lattice structure, as Figure 2(a) shows. The circular cylinders are composed of an MA material with known microwave properties taken from [13]. This material is a composite material that is loaded with a nanopowder material, Fe20Ni8, that has relative permittivity in the range of ∼16-∼28 and relative permeability in the range of ∼1-∼1.8.…”

“…The reflection loss spectra of different thicknesses layers of Fe20Ni8 nanopowders composite MA material backed by PEC ground plane: results of[13] (solid black) and our simulation results (colored doted)[14].…”

Tailorable microwave absorption characteristics of bio waste-based composites through a macroscopic design

“…due to the electromagnetic interference (EMI). 3,4 In order to avoid these problems, need of tuned-frequency elastomeric absorbers are increasingly felt. The conventional radar absorption materials are mainly ferrites based, 5 carbon based, 6 graphene/CNT based, 7,8 conducting polymer and hollow microsphere based.…”