一种基于双开口谐振环的双频吸波体设计

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中图分类号：TP391.7；0441 文献标识码：A 文章编号：2096-4706（2025）20-0017-05

Abstract：A 2.4GHz and 5GHz dual-band electromagnetic absorber structure based on Dual Split-Ring Resonator is designedfortheWLANbandoflaptops.Theabsorberstructureconsistsofthreeparts：metalresonantlayer，dielectriclayerand metaleflectivelayer.The metalresonantlayerunitrealizes the miniaturizationanddual-bandcharacteristicsof theabsorberby using two embedded curved Split-Ring Resonator structures.The simulation results showthat the peak absorptionrates of the absorber structure at 2.42 GHz and 5.2 GHz resonant frequencies can reach 97% and 98% ，respectively.Moreover， the structure of the metalresonant unitoftheabsorber is simple，and theresonant frequencyofthe absorbercan be adjustedbyadjusting the structural parametersof theresonantunit.This design provides areference forthe subsequent design of electromagnetic absorbers for the WLAN band of laptops.

Keywords：laptop; Split-Ring Resonator; wireless local area network; electromagnetic absorber;dual frequency

0 引言

随着无线WLAN技术的飞速发展，笔记本电脑、平板以及手机等便携无线终端设备的内部电磁波噪声越来越复杂，这无疑对无线产品的噪声屏蔽方案提出了更高的要求。（剩余6135字）