A New Method to Calculate the Degree of Electromagnetic Impedance Matching in One-Layer Microwave Absorbers

By Zhi Ma, Qing-Fang Liu, Jianbo Wang. 2011

138 citations recorded by the source corpus.

A delta-function method is proposed to quantitatively evaluate the electromagnetic impedance matching degree. Measured electromagnetic parameters of α-Fe/Fe3B/Y2O3 nanocomposites are applied to calculate the matching degree by the method. Compared with reflection loss and quarter-wave principle theory, the method accurately reveals the intrinsic mechanism of microwave transmission and reflection properties. A possible honeycomb structure with promising high-performance microwave absorption, devised according to the method, is also proposed.

Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/bfe2507547361a89f2a46e0f74ce054c8574a914