Title :
Oblique Incidence Performance of Microwave Absorbers Based on Magnetic Polymer Composites
Author :
Linbo Zhang ; Haipeng Lu ; Peiheng Zhou ; Jianliang Xie ; Longjiang Deng
Author_Institution :
State Key Lab. of Electron. Thin Film & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Oblique incidence properties of the reflection coefficient of a multi-layered (or single-layered) metal-backed magnetic absorber (MA) are analyzed in terms of the input impedance. Constant input impedance, almost independent of the incident angles and polarizations, is achievable for most MAs. Thus, the incidence angle restriction for a specified level of polarization-independent reflection in most MAs can be deduced. Preconditions of the law are also discussed. Experimental results confirm both the law and its application for absorption design.
Keywords :
electromagnetic wave absorption; microwave materials; magnetic polymer composites; metal-backed magnetic absorber; microwave absorbers; oblique incidence; polarization-independent reflection; Absorption; Impedance; Magnetic domains; Magnetic resonance; Microwave theory and techniques; Permeability; Reflection coefficient; Impedance; Microwave absorber; impedance; magnetic; microwave absorber; oblique incidence; polarization;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2015.2439682
