无线通信产品之天线简介

1良HighTechComputerCorporation2Outline„BluetoothandWLANSystem„Bluetoothantenna„WLANantenna„PCMCIAnetworkcardantenna„DiversityantennaforPCMCIA„Conclution3Operatingband„BlueTooth:2400-2483.5MHz„WLAN:„802.11a:5150-5350MHz5725-5825MHz„802.11b,802.11g:2400-2483.5MHz4BlueToothsystem5BlueToothband„Operatinginthe2.4GHzISM(IndustrialScientificMedicine)band6PowerClass„WirelessLAN行連路(LAN)WirelessLANIEEE802.11„若PCMCIA8WLANbandSystemBand(MHz)DataRate(Mbps)802.11a5150-53505250-53505725-58286-54802.11b2400-2493.51,2,5.5,11802.11g2400-2493.554Wi-Fi(wirelessfidelity)ismeanttobeusedgenericallywhenreferringofanytypeof802.11network,whether802.11b,802.11a,dual-band,etc.9WiMAXband„802.16a,802.16e„2.5GHzband„3.5GHzband„5GHzband„Datarate:75Mbps10WLANMobile-UnitAntennas„Surfacemountableantennas„Printedmonopoleantennas„Printeddipoleantennas„Slotantennas,PIFAs„Low-costmicrostripantennasusingFR4substrates11SMA-CeramicChipAntennas„Regularpatchantenna(ceramicchipasasubstrate)„PIFAs„Monopoles(ceramicchipasasupportforthemonopole)12SMA-CeramicChipAntennaHelixmonopoleembeddedwithintheceramicchipUSPatent5977927,5892490Meanderedmonopoleembeddedwithintheceramicchip13ChipAntenna14SMA-FR4ChipAntenna(1)FR4chipantenna(size6x6x1.6mm3)forWLANoperationsinthe2.4and5.2GHzbandsPatentpending15SMA-FR4ChipAntenna(1.1)7.3dBRLBW:107MHz@2.45GHz;820MHz@5.5GHz;gainlevel~1dBiforbothbands2E+0093E+0094E+0095E+0096E+009-40-30-20-10016SMA-PlasticChiporFoldedStripMonopole(2)Dual-bandoperationin2.4/5.2GHzWLANbands;Antennasize:12x8x3mm3Patentpending17SMA-PlasticChiporFoldedStripMonopole(2.1)10dBRLBW:130MHzfor2.4GHzband,418MHzfor5.2GHzband;Gainlevelabout2dBiinthe2.4and5.2GHzbands18SMA-MultilayerChipAntenna(4)Proc.2001Asia-PacificMicrowaveConf.,Vol.2,pp.472-475Line-pitchangle:26.26oGroundsize:25x40mm2Size:6x10.2x1.26mm3@r=7BW:[e-mail]:-1.85dBi@E-planeθ=75o,285o-5.85dBi@H-planeSMA-MultilayerChipAntenna(4.1)20SMA-DRAntennas„Dielectricconstant=20~100„Compactsize„Verylowdielectricloss„Nometallicloss,Suitableforhigher-frequencyoperation„Widerbandwidththanmicrostripantennas21WLANPrintedMonopoleAntennas„Integrateddesignwiththesystemcircuitboard„Dual-bandmonopoleantenna„Printedmonopolewithacoaxialfeedline22WLANPrintedMonopole-Dual-bandmonopole(1)Dual-bandF-shapedmonopolefor2.4/5.2GHzWLANbands;antennasize:10x15mm2Patentpending23WLANPrintedMonopole-Dual-bandmonopole(2)Dual-bandspiralmonopolefor2.4/5.2GHzWLANbandsPatentpending1E+0091.5E+0092E+0092.5E+0093E+0093.5E+0094E+0094.5E+0095E+0095.5E+0096E+009-30-20-10024WLANPrintedMonopole-Dual-banddesign(3)Dual-banddouble-Tmonopolefor2.4/5.2GHzWLANbandsPatentpending25WLANPrintedMonopole-usingacoaxialfeedlineDual-bandspiralmonopolefor2.4/5.2GHzWLANbandsPatentpending26WLANPrintedMonopole-usingacoaxialfeedlineDual-banduni-planarmonopolefor2.4/5.2GHzWLANbandsPatentpending27PCMCIAantenna28PCMCIAnetworkcardPCMCIA(personalcomputermemorycardinternationalassociation)29PCMCIACard:MovableAntennaUSPatentPub.No.0034924A1,Feb.200330PCMCIACard:RotatableAntennaUSPatentNo.5949379,Sep.199931PCMCIACard:RotatableAntennaVerticalantennaUSPatentNo.6535172B2,Mar.200332CFCard:Dual-BandDesign33CFCard:Dual-BandDesign34DiversityAntennaforPCMCIA35„DiversityantennaforPCMCIA„Printedmonopolefordiversitydesign„Printedmonopoleantenna„PrintedDual-bandmonopoleantenna„IsolationondiversityantennaOutline36DiversityAntennas„CombatthemultipathprobleminWLANsystem¾Spatialdiversity¾Patterndiversity¾Polarizationdiversity¾Timediversity¾Frequencydiversity37PCMCIAnetworkcard38PCMCIAnetworkcard39Printedmonopolefordiversitydesign(1)Spatial/polarizationdiversityinthe2.4GHzbandProtrudedgroundplaneimprovesportdecouplingbetweenports1and2Patentpending40S11andS21Gainlevel~1.8dBiforports1and2USPatent6549170B1,Apr.200341RadiationpatternPort1Port242Printeddual-bandmonopolefordiversitydesign(1)Diversitymonopoleantennafor2.4and5.2GHzdual-bandoperationsProtrudedgroundplaneimprovesportdecouplingbetweenports1and2Patentpending43S11andS21Withinthe2.4and5.2GHzbands,S11-10dBandS21-28dB1.515221.530221.545221.560221.5752244Radiationpattern45MobilePhoneMainAntenna46MobileAntenna露(monopoleantenna)F(PIFA)::1.易2.SAR:SAR:度vs.47ExternalAntennaHelixAntenna48RadiationPatternofMonopoleAntenna49YagiAntenna50PIFAPIFA(PlanarInverted-FAntenna)51SAR(SpecificAbsorptionRate)52SARComparison53AnechoicChamber54Phantommodefacility55Conclusion„BluetoothandWLANantenna„Surfacemountableantennas„Printedmonopoleantennas„Printeddipoleantennas„APantenna„DiversityantennaforPCMCIAnetworkcard„MobilePhoneMainAntenna56ThankYou