标签: 34mobile

34Mobile_antennaBasicAntennaPrinciplesforMobileCommunicationsDipl.Ing.PeterScholzKATHREIN-WerkeKGAnton-Kathrein-Strae183004Rosenheim1.2.3.3.13.23.33.43.53.63.74.4.14.1.14.1.24.1.34.24.2.14.2.24.2.34.2.45.5.15.1.15.1.1.15.1.1.25.1.25.1.2.15.1.2.25.2IntroductionTheoryDefinitionsPolarizationRadiationPatternHalf-Power-Beam-WidthGainImpedanceVSWR/ReturnLossMechanicalfeaturesBaseStationAntennasOmnidirectionalAntennasGroundplaneandλ/4-SkirtAntennasSide-mountedOmnidirectionalAntennasOmnidirectionalGainAntennasDirectionalAntennasGainAchievedviaHorizontalBeamingEnd-fireArrayBroadsideArrayAntennaSystemsParticularTechniquesusedinGSMandDCS1800DiversitySpaceDiversityOmni-BaseStationSectoredBaseStationPolarizationDi……