A delta-function method was proposed to quantitatively evaluate the electromagnetic impedance matching degree. Measured electromagnetic parameters of {\alpha}-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 according to the method is also proposed.
@article{arxiv.1110.3184,
title = {A New Method to Calculate Electromagnetic Impedance Matching Degree in One-Layer Microwave Absorbers},
author = {Zhi Ma and Chen-Tao Cao and Qing-Fang Liu and Jian-Bo Wang},
journal= {arXiv preprint arXiv:1110.3184},
year = {2015}
}