Emerging Materials and Designs for Low‐ and Multi‐Band Electromagnetic Wave Absorbers: The Search for Dielectric and Magnetic Synergy?

Abstract Vigorous development of 5G communication technologies can boost mobile networks yet bring in electromagnetic interferences and safety concerns in utilizing electronic devices. Particularly, 5G network can not only involve a low‐frequency band of n 78 (3.3–3.8 GHz) but also cover multi‐frequency bands of n 77 (3.3–4.2 GHz) and n 79 (4.4–5.0 GHz), displaying multiple electromagnetic radiations. Countless efforts have been devoted to investigating electromagnetic wave (EMW) absorbers with low‐ and multi‐band absorption properties. However, in terms of emerging materials and designs, few reports propose the mechanisms related to those properties. This perspective briefly reviews the impressive…

• NN
  National Natural Science Foundation of China

  Awards: 61790581, 11727807, 52101213, 22088101, 52102370, 52102368, 51672050, 51725101
• CP
  China Postdoctoral Science Foundation

  Award: 2020M680085
• NS
  Natural Science Foundation of Ningbo

  Award: 2021J225