此超小型天线片:用于GPS个人追踪器,上网本,平板电脑.GPS系列产品.1.ELECTRICALSPECIFICATIONSNO.PartNumberOutlineDimension(mm)GroundPlane1-1DA1575S10T410*10*4 Inthecustomer smechanical1-2CenterFrequency1575 1.5MHz1-3Bandwidth5MHzmin.1-4Impedance50 1-5Gain@Zenith-3.0dBi typ1-6FrequencyTemperatureCoefficient0 10 ppm/℃1-7ReturnLoss@fo-15dB typ1-8V.S.W.R2.0max.1-9AxialRatio@fo3.0dBmax2.STRUCTUREANDMATERIALNo.DescriptionStructureandmaterial2-1AntennaSubstrateDielectricCeramics2-2PinCopper2-3ElectrodeAgplated2-4GroundBaseAgplated3.PHYSICALDIMENSIONS