第 1 页精品文档---下载后可任意编辑微波左手材料单元结构设计和电磁特性的数值分析分析 1、andpermeabilitycanbeenexpressedbythedimensionparametersoftheE’shaped.ItismoredistinctlyshownthattheresonancefrequencypointandtheeffectiveelectromagneticparametersCanbeimpactedbythegeometriclengthandlongitudeoftheE-shaped.Inthepaper.themultibandandtheisotropiccharacteristics,atle 2、astwiththewaveincidentinthedoublewaysfortheleft-handedmaterialsisdiscussedsimply.Theelectromagneticpropertiesareintroducedinbrief.Keywords:Left-handed;E-shapedstructure;Negativepermeability;NegativepermittivityDual-bandnegativerefractionIV 名目名目第一章绪论????.?????.??????11.1 本文的讨论背景??? 3、????????????。.11.2 左手材料的讨论现状??????????????21.2.1左手材料电磁特性讨论现状??????????.21.2.2 左手材料结构设计讨论现状??????????.41.2.3 左手材料试验讨论现状???????????..51.2.4 左手材料应用特性讨论现状??????????.51.3 本论文的内容,意义,创新点???????????..61.4 本章小结?????????????????.8