“Dielectric Loss Mechanism in Electromagnetic Wave Absorbing Materials” (2022), by Ming Li Qin et al. Materials Science research paper. Original abstract below, unchanged. No free PDF was found.

Dielectric Loss Mechanism in Electromagnetic Wave Absorbing Materials

Ming Li Qin, Limin Zhang, Hongjing Wu · February 7, 2022 · Materials Science

Abstract

Electromagnetic (EM) wave absorbing materials play an increasingly important role in modern society for their multi-functional in military stealth and incoming 5G smart era. Dielectric loss EM wave absorbers and underlying loss mechanism investigation are of great significance to unveil EM wave attenuation behaviors of materials and guide novel dielectric loss materials design. However, current researches focus more on materials synthesis rather than in-depth mechanism study. Herein, comprehensive views toward dielectric loss mechanisms including interfacial polarization, dipolar polarization, conductive loss, and defect-induced polarization are provided. Particularly, some misunderstandings and ambiguous concepts for each mechanism are highlighted. Besides, in-depth dielectric loss study and novel dielectric loss mechanisms are emphasized. Moreover, new dielectric loss mechanism regulation strategies instead of regular components compositing are summarized to provide inspiring thoughts toward simple and effective EM wave attenuation behavior modulation.

Source page DOI: 10.1002/advs.202105553