微波电磁超材料设计与应用研究进展

Research progress on design and application of microwave electromagnetic metamaterial

电磁超材料在二十多年的发展历程中,引发了学术界和产业界的广泛关注,在军事、民用等领域扮演着重要的角色.电磁超材料可以突破传统电磁器件电磁响应的局限,具有自然媒质所不具备的电磁特性.电磁超材料对不同频段的电磁波均具备优异的操控能力,进而演化出了多样化的电磁超材料功能器件.随着应用需求的不断提升,电磁超材料结构日趋复杂,功能趋向多元化.新材料与新工艺在电磁超材料中的融合应用不断涌现,以人工智能和优化理论为驱动力的超材料设计方法学研究蓬勃发展.本文结合近年来涌现出的研究成果和行业发展状况,简要总结了微波领域电磁超材料的发展应用态势.同时本文以近年知网论文数据库中收录的4949篇电磁超材料论文作为语料库,利用长短期记忆网络模型,从大数据角度,统计归纳了当前国内电磁超材料发展趋势.为从事本领域研究的科研人员提供了可资借鉴的方向展望.

Electromagnetic metamaterials have attracted extensive attention from academia and industry in the past two decades and have been widely utilized in military and civil applications.Electromagnetic metamaterials can overcome the limitations of traditional electromagnetic devices because of their extraordinary electromagnetic properties that natural media do not possess.Electromagnetic metamaterial have an excellent ability to manipulate electromagnetic waves in different spectra,which has resulted in the evolution of various electromagnetic functional devices.With the increasing demand for applications,the structures of electromagnetic metamaterials are becoming increasingly complex,and their functions are diversified.The fusion applications of new materials and new processes in metamaterial continue to emerge.The research on the design methodology of metamaterial driven by artificial intelligence and optimization theory is burgeoning.In this study,the development and application of electromagnetic metamaterial in the microwave field are briefly summarized based on the research findings and industry development in recent years.A total of 4949 electromagnetic metamaterial papers are included in the CNKI database as the corpus,and the LSTM model is introduced to statistically summarize the current development trend of electromagnetic metamaterial from the perspective of big data,providing valuable guidance for researchers engaged in this field.