Computation design and performance prediction towards a multi-layer microwave absorber

Enhanced electromagnetic absorption properties of carbon nanotubes and zinc oxide whisker microwave absorber

“…According to the theory of electromagnetic wave, the attenuation constant ˛ is given by [30]: [31] has proved that two important conditions should be satisfied for a good absorbing material. The first is the "matched characteristics impedance", in which the intrinsic impedance of the material is made equal to the impedance of the free space.…”

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.…”

Electromagnetic properties of pyrolytic carbon-Si3N4 ceramics with gradient PyC distribution

“…1 In commercial applications, with the wide use of anti-EM interference technology, microwave communication technology, self-concealing technology and microwave darkrooms, absorption is more useful than reflection in shielding EM radiation. [2][3][4][5] In modern military applications, with the rapid development of radar detection technique, various stealth targets are being researched to meet the needs for covert action, and these stealth targets shield EM radiation mainly by absorption rather than reflection. 6,7 Due to the low density, high electrical conductivity and good environmental stability of carbon, carbon-based materials are good EM-shielding materials used in harsh condition, and the EM properties of materials containing carbon-based filler have been extensively investigated.…”