利用實(shí)測天線方向圖確定天線增益的研究.pdf

1、山東師范大學(xué)碩士學(xué)位論文利用實(shí)測天線方向圖確定天線增益的研究姓名：李相周申請學(xué)位級(jí)別：碩士專業(yè)：教育技術(shù)學(xué)指導(dǎo)教師：魏璁2001.4.20利用實(shí)測天線方向圖確定天線增益的研究第4頁共43頁一一一.一WithbusinessAbstracttherapiddevelopmentofsatellitecommunicationtechnologyanditisindispensabletomeasureandanalyzeantennasv

2、ariessuchasradiationpaternintheprocessofmanafacturingantennaandinverifyingdirectionpropertyonearthstationofsatellitecommunicationtoothernetworkparameterstestingandAntennasandgainarethemostimpoandcapabilitysothertantparam

3、etersthatreflectantennasspecificstudyofantennasgainimportant.Proceedingfromactualconditioninasystematicisparticularlywaythisthesisdiscusseshowtouseantennasradistionpaternmeasuredtoachieveitsgainquicklyanconveniently.Atfi

4、rstthisthesisbrieflyaddressesconventionalmethodsofmeasuringantennasgainanddiscussestheiradvantageanddisadvantage.Tomeasureantennasgainwithconventionalmethodwemustspendmuchenergytochoosefriablemeasuringpoint.Itnotonlyneed

5、lotsofmanpowerandmaterialresourcebutthemeasuringefficiencyisspeciallymuchlower.ThisthesiselaboratetwoconvenientandefectualmethodstocalculateantennasgainusingitsradiationpaternBeamwidthmethodandIntegralmethod.Ideduceanddi

6、scussthetwomethodsindetailsandgettheconvenientformulatocalculateantennasgainbythetwomethods.OnthebaseofantennasradiationpaternIalsodemonstratetheformulascorrectionbyquatitiesoftestingdata.AtlastImakeasystematicexposition

7、ontheadvantageofthetwomethods.Thebuildingmodelmethodofmathenatiesisemployedtodealwiththeproblemofusingactualantennasradiationpaternmeasuredtostudyitsgainwhichtranslatesproblemsofprocticalmeasurementintomathematicalproble

8、ms.ByanalyingandstudyingthemeasureddataofantennasradiationpaternIbuildcorrectmathematicsmodelatsametimeanalyandsolveitexaminethebuildedmathematicalmodulusandreviseitconstantlyuntilgetingthecorrectreault.Thisthesisusescom

9、putertohandlethetesteddataandemploysmathematicalmathodstodemonstratethecorreetionofbeamwidthmethodandintegralmethod.FinallyIdiscussandcomparethetestedresultanalyzetheinaccuratesourceandcausingreasionsimplyandcorrectthein

10、accuratedataonsomedegree.TheBeamwidthmethodandIntegralmethodaddressedinthisthesishavemoreextensivepracticalvalueintheprocessofmanufacturingantennaandtestingorverifyinganearthstationofsatellitecommunicationtoenterthesatel