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S雷 光1,王培章2,许 舵1(1.4,210007;2.):,S,,,,,:;;:TN713:B:CN32-1289(2010)03-0064-03DesignerofS-bandCapacity-loadedCoaxialCavityFilterLEIGuang1,WANGPei-zhang2,XUDuo1(1.PostgraduateTeam4ICE,PLAUST,Nanjing210007,China;2.DepartmentofSatelliteCommunicationICE,PLAUST)Abstract:AnS-bandcapacity-loadedcoaxialcavityfilterwasproposed.Thecenterfrequen-cyandbandwidthofthefilterwerechangedbytuningscrews,amongwhichsomewereplacedattheopenendofeveryresonatorandtheotherswerelocatedbetweentheopenendsofeverytworesonators.Bothcascadedtripletfilterandcascadedquadrupletcavityfilterweredesignedandfabricated.Experimentalresultsshowthatthecascadedquadrupletcavityfilterhastheadvantageofenhancingtherejectionofstopband.Keywords:capacity-loaded;coaxialfilter;narrow-band,,Q,,,,Q,[1]:(),,[2],,,S,,(),;(),,[3]31320109JournalofMilitaryCommunicationsTechnologyVol.31No.3Sep.2010:2010-04-14;:2010-06-11:(1986-),,.,,,,,1,1,,TEM,,[4]1(a)1nC1Cn,0n+1,Ci,0/4,Ci,,,Ci,0/4,[5]1,,(a)(b)1232,,,,[6],,[7],,B~1B~2,43:B~1+B~2=03B~10,B~20,0:C0-1Z0cotl=02fZ0C0=cot2fl,Z0,C0f,,4,C0,,,,::2.2GHz2.5GHz;:20MHz40MHz;:2dB4dB653:S,,,2,AnsoftHFSS,5,S11,S21(a)(b)56,,6,,,,7,,,,7(a)S21,2.414GHz12,7(b)7(c)7(b)S21,2.414GHz;7(c)S21,2.215GHz;7(d)S11,,1dB,3,,,,,,(下转第80页)662010,(3),tableStyles.xml,,,tableStyles.xml,,4Office,,PowerPoint2007,,,,PowerPoint2007,,PowerPointXML,,PowerPointXML,:[1],.[J].,2005,31(23):116-118.[2],.Word[J].,2005,31(24):175-209.[3]RiceF.Office(2007)OpenXML[EB/OL].(2007-07-06)[2010-04-15].http:[4]Microsoft.Fundamentalsandmarkuplanguagereference[EB/OL].[2010-04-15].http:(上接第66页),,,,,,:[1],,.[M].:,2003:146-157.[2],.[M].:,1973:11-55.[3]ThomasJB.Cross-couplingincoaxialcavityfilter-atutorialoverview[J].IEEETransMicrowaveTheoryTech,2003,51(4):1368-1376.[4],,.C[C]2007.:,2007:1135-1138.[5],,,.[C]2007.:,2007:986-988.[6]RheaRW.HFfilterdesignerandcomputersimulation[M].AtlantaGA:Noble,1994.[7]LiangXP,ZakiKA.Modelingofcylindricaldielectricresonatorsinrectangularwaveguidesandcavities[J].IEEETransMicrowaveTheoryTech,1993,41(12):2174-2181.802010