一種基于異向介質(zhì)帶阻濾波器的設計.pdf

1、哈爾濱工程大學碩士學位論文一種基于異向介質(zhì)帶阻濾波器的設計姓名：趙嬪嫣申請學位級別：碩士專業(yè)：光學工程指導教師：王政平20090601哈爾濱T稗大學碩十學位論文AbstractMetamaterialsareartificialstructuralelements，designedtoachieveadvantageousandunusualelectromagneticproperties，includingdouble—negati

2、vematerials(DNG)，whichpermittivityandpermeabilityaresimultaneouslynegative，andsingle—negativematerials(SNG)，whicheitherthepermittivityorpermeabilityisnegativeThesematerialsincludetheepsilonnegativematerial(ENG)，inwhichth

3、epermittivityisnegative，butthepermeabilityispositive，andthemunegaitvematerial(MN6)，inwhichthepermeabilityisnegative，butthepermittivityispositiveTheSNGmaterialshaveattractedmuchattentionduetotheirpeculiarpropertiesWhenthe

4、SNGmaterialsarepairedtogethersuchinterestingpropertiesas：resonances，transparencyanomaloustunneling，andzereflectionarefoundPutthemetaltothebilayersinglenegativeback，ifthematerialsareloosythereflectionwillreachtozeroinacer

5、tainfrequencyThispaperresearchesonthebandstopfilterbasedonthesinglenegativematerials，analysisthefactorswhichimpactthereflectionofthefilterThemaincontentiSasfollows：Atfirst，anoverviewofthemetamaterialsanditspotentialappli

6、cations，researchingtheelectromagnetictheoryoftheelectricwavepropagateinthesinglematematerialsThentheelectromagneticwavepropagateinthebilayersingle—negativewillbediscussedWecalculatethemagneticfieldandtheenergydensityinth

7、ebilayerstructureintheconjugateandnonconjugatesituationThelosslessmetamaterialsandlossymetamaterialswillbeequivalentusingtheleft—handedtransmissionline，theaccordingmodelalsobebroughtforwardThereflectionformulawillbegiven