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1、摘要在現(xiàn)在無線通信產(chǎn)業(yè)的飛速發(fā)展下,無線通信行業(yè)正遍布我國的各個領域,并且競爭也越來越激烈,而作為移動通信系統(tǒng)中通信終端的天線要求也就越來越高。伴隨著無線局域網(wǎng)中各項標準的出臺,因此,研制可同時適用于多個頻帶內的天線成為天線的設計的要求。本文提出了一種應用WLAN/WiMAX通信系統(tǒng)的新型雙頻帶印刷天線。通過在微帶板蝕刻對稱的叉子形輻射貼片和寄生貼片,仿真設計了一款雙頻帶印刷天線結構,借助于仿真軟件對天線進行優(yōu)化設計,使天線能覆蓋2.4/5.2/5.8GHzWLAN和5.5GHz頻帶,并對其進行了測試。結果表明,測試結果和仿真的結果一樣
2、,并且在帶內擁有良好的全向輻射特性。論文共分為五個部分。首先,論文簡單介紹了無線局域網(wǎng)的基本概念,在了解了無線局域網(wǎng)的的基本知識后討論了印刷天線發(fā)展情況,最后簡單敘述了本次用的三維仿真軟件。其次,詳細地回顧了天線的基本理論,包括天線的基本電參數(shù),天線單元的饋電方法等等。接著,介紹了WLAN/WiMAX雙頻帶印刷天線的特點和設計特點以及設計要求。然后介紹了應用于WLAN/WiMAX雙頻帶印刷天線仿真的流程的具體步驟。最后,論文總結了全部工作,并對未來相關研究工作做了適當展望。【關鍵詞】WLAN/WiMAXHFSS雙頻對稱叉子型ABSTRA
3、CTInthecurrentrapiddevelopmentofwirelesscommunicationindustry,wirelesscommunicationsindustryisalloverthecountryinvariousfields,andmoreintensecompetition,asamobilecommunicationterminalinacommunicationsystem,itrequiresmoreandmoreantennas.WiththeintroductionofwirelessLANsta
4、ndards,therefore,developmentofanantennacanbesimultaneouslyappliedtothepluralityofbandantennadesignrequirementsbecome.ThispaperproposesaWLAN/WiMAXapplicationsofnewcommunicationssystemdual-bandprintedantenna.Microstripplateetchingbyfork-shapedsymmetricalradiationpatchandpa
5、rasiticpatch,simulationdesignedadual-bandprintedantennastructure,bymeansofsimulationsoftwaretooptimizethedesignoftheantenna,theantennacancover2.4/5.2/5.8GHzWLANand5.5GHzfrequencybands,andtestedit.Theresultsshowedthatthetestresultsandsimulationresultsofthesame,andhaveagoo
6、domnidirectionalradiationcharacteristicsintheband.Thethesisisdividedintofiveparts.First,thepaperintroducesthebasicconceptsofwirelessLANs,intheunderstandingofthebasicsofwirelessLANantennadiscussedthedevelopmentofprinting,andfinallyabriefdescriptionofthethree-dimensionalsi
7、mulationsoftwareusedforthis.Secondly,adetailedreviewofthebasictheoryoftheantenna,thebasicelectricalparametersoftheantennaelementscomprisingtheantennafeedandthelike.Then,introducedtheWLAN/WiMAXfeaturesanddesignfeaturesanddesignrequirementsdual-bandprintedantenna.Thenintro
8、ducesthespecificstepsusedinWLAN/WiMAXdual-bandprintedantennasimulationprocess.Finally,thepapersummarize