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1、L型探針饋電的微帶天線仿真設(shè)計L型探針饋電的微帶天線仿真設(shè)計中文摘要近年來，隨著移動通信系統(tǒng)業(yè)務(wù)的不斷增加，通信設(shè)備不斷朝著小型化方向發(fā)展，同時對天線體積，集成化及工作頻段的要求也越來越高。重量輕，剖面低，成本低和易于集成的微帶天線，受到大家的廣泛的關(guān)注。目前微帶天線的主要限制還在于天線的狹窄。經(jīng)過數(shù)十年的發(fā)展，很多研究學(xué)者提出了拓展微帶貼片天線帶寬的方法，其中采用L型探針饋電的方式得到了很多關(guān)注。由于L型探針垂直部分及水平部分和貼片之間產(chǎn)生感抗和容抗，兩者相互作用產(chǎn)生諧振，使天線頻帶拓寬或者呈現(xiàn)多頻帶。這使得L型探針饋電廣泛應(yīng)用于現(xiàn)代移動通信系統(tǒng)中。本文介紹了微帶天線的輻射原理及微波射頻段電
2、磁波的基本理論及L型探針饋電的微帶天線。文中依據(jù)理論分析以及數(shù)值計算相結(jié)合的方式設(shè)計出滿足設(shè)計需要的微帶天線并借助天線設(shè)計軟件HFSS分析了L型探針?biāo)蕉魏拓Q直端長度對天線帶寬的影響，在最后設(shè)計了一副進(jìn)行仿真優(yōu)化了的信號頻段在3.2~4.4GHz的L型探針饋電的微帶天線。關(guān)鍵詞：微帶天線；容感性；L型探針饋電；HFSS仿真IIIL型探針饋電的微帶天線仿真設(shè)計ThedesignandSimulationofantennawithL-shapedprobefeedAbsractInrecentyears,withtheincreasingnumberofmobilecommunicationsys
3、tem,communicationequipmentdevelopedtowardsminiaturizationdirectionconstantly,andtheantennasize,highintegrationandfrequencyrequirementsarealsobecomingmoreandmoreimportant.Lightweight,withlowprofile,lowcostandeaseofintegrationhasgotwidespreadattentionbyallofus.Themajorlimitationsofmicrostripantennanow
4、isthebandwidthoftheantenna.Afterdecadesofdevelopment,alotofresearchscholarsproposedmethodtoexpandthebandwidthofthemicrostrippatchantenna,whichadoptstheL-shapedprobefeedgetalotofattention.BecauseverticalsectionandhorizontalsectionofL-shapedprobecreateinductivereactanceandcapacitivereactance,andbothof
5、theminteracttoproduceresonance,thismakestheantennahaswidebandwidthormultiplefrequencybands.ThismakesL-shapedprobefeediswidelyusedinmodernmobilecommunicationssystem.Thispaperintroducestheradiationprincipleofmicrostripantennaandmicrowaveradiofrequencysectionofthebasictheoryofelectromagneticwavetransmi
6、ssionandtheantennawithL-shapedprobefeed.Basedonthebasictheoryofmicrostripantennaanalysisandnumericalcalculationdesignamicrostripantennameetthedesignneed,andanalysistheeffectofthesizehorizontalandverticalsectionofL-shapedprobeontheantennabandwidthwiththeaidofwithsimulationsoftwareHFSS.Inthefinal,itde
7、signsamicrostripantennawithL-shapedprobefeedwhichthetransmissionsignalfrequencybandin3.2~4.4GHz.KEYWORD：Microstripantenna；Shouldtheemotion；L-shapedfeed；HFSSsimulationIIIL型探針饋電的微帶天線仿真設(shè)計目錄第一章緒論11.1課題背景及
