GPRS/GPS二合一天线 一．GSM/GPRS天线特性 AntennaSpecification 频率范围---MHzFrequencyRangeA:890~960 B:1710~1990带宽---MHzBandwidthA:70 B:170增益---dbiGain2电压驻波比VSWR≦1.5标称阻抗----NominalImpedance50极化方式Polarization垂直最大功率---WMaxPower50外形尺寸---mm50X43X23重量----gWeight100接头型号ConnectorSMA或由用户指定备注Remarks 二．GPS1、天线特性AntennaSpecification型号特性CC-AGPS-SBJ中心频率CenterFrequency1575.42MHz 3MHz电压驻波比V.S.W.R1.5:1带宽BandWidth 5MHz带外衰耗Attenuationfo 100MHz＞30dB阻抗Impendence50ohm最高增益PeakGain＞3dBic Basedon7 7cmgroundplane增益范围GainCoverage＞-4dBicat 90 ＜0＜+90 (over75%Volume) 天线极化PolarizationRHCP2、放大器规格LNASpecification型号特性 放大器增益LNAGain(Withoutcable) 27dB Typical 噪声系数NoiseFigure1.5dB输出电压驻波比V.S.W.R＜2.0直流电压DCVoltage3V to 5V直流电流DCcurrent15mA Max 3、结构特性MechanicalSpecification型号特性 重量Weight＜100(克)gram外型尺寸Size50 43 23mm电缆Cable 3meterlongorother RG174 3meterlongorother连接器型号ConnectorSMB或由用户指定固定方式Mounting磁性Magneticbase外壳颜色Housing黑Black4、低噪声放大器原理LNA 5、环境特性EnvironmentalSpecification工作温度WorkingTemp-40℃~+85℃极限温度StorageTemp-40℃~+100℃振动VibrationSinesweep1g(0-p)10~50~10Hzeachaxis湿度Humidity95%~100%RH防水Weatherproof100%Waterproof可靠性 MTBF=1 10-6/pc.hr 40℃ 5℃ DC=3v~5v数量2000pcs 持续时间为480h