Towards an intelligent CAD system for multilayer electromagnetic absorber design

Computer aided analysis and design of broadband electromagnetic absorbers

“…The idea of this method is to track and calculate refraction waves at each stratified interface, while the reflection waves are pushed into memory and summarized. Then the ratio between the summarized reflected waves and the incident wave will give us the reflection coefficient [3].…”

Broadband asymmetric electromagnetic wave absorption tailored by impedance gradation: To construct diode-like absorbers

“…The microwave absorption efficiency of absorbents is mainly dependent on the complex permeability (μ r ¼ μ 0 þiμ 00 ) and permittivity (ε r ¼ε 0 þiε˝) [7][8][9][10][11], while the impedance match and layer thickness are thought to be keys in the structural design of absorbers [12][13]. Based on these, we herein propose a concept for multiple-layer absorbers, by using Ni nanoparticle/paraffin composite as a model, in which the impendence of each layer is adjusted by the loading fraction of Ni nanoparticle fillers.…”

Enhanced Wave‐Absorption Properties of Nanocomposites Based on the Synthesized Bi2S3 Nanorods and Polyvinylidene Fluoride

“…Currently, the top challenge in this field is how to achieve broadband absorption, which requires not only approximate electromagnetic parameters, but also adequate parameter stabilities and disperse characteristics. [3][4][5] However, to attain light, thin, and compatible wave-absorbing materials, advanced material and technology must be applied. Thus, it has become an important task to develop high-performance material systems with controllable electromagnetic parameters in the field of stealth materials.…”