A New Method to Calculate Electromagnetic Impedance Matching Degree in One-Layer Microwave Absorbers
Zhi Ma, Chen-Tao Cao, Qing-Fang Liu, Jian-Bo Wang
TL;DR
This paper introduces a delta-function method to quantitatively evaluate electromagnetic impedance matching in one-layer microwave absorbers, providing insights into transmission and reflection mechanisms.
Contribution
The paper presents a novel delta-function method for accurately assessing impedance matching, validated with nanocomposite data and compared to existing theories.
Findings
The method accurately reflects microwave transmission and reflection properties.
It reveals the intrinsic mechanism of electromagnetic behavior in absorbers.
A high-performance honeycomb structure is proposed based on the method.
Abstract
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.
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