GPS车载天线

       产品规格Production Parameter

一、产品型号Product Model GPS

电缆头及电缆线(Connector or Cable)：RG174,L=3M

电缆线材总损耗（GAIN：±3DB）

二、介质天线Dielectric Antenna

中心频率Center Frequency           1575.42±3 MHz

电压驻波比V．S．W．R           2:1

带宽Band Width                   ±5 MHz

阻抗Impendence                   50Ω

最高增益Peak Gain                ＞3dBic Based on 7×7cm ground plane

增益范围Gain Coverage             ＞-4dBic at -90°＜0＜+90°(over 75% Volume)

天线极化Polarization                          RHCP

三、放大器/滤波器LNA/Filter

放大器增益LNA Gain Without cable               28dB Typical

噪声系数Noise Figure                                                       2.0dB

滤波器带外衰减Filter Out Band Attenuation                 (f0=1575.42MHz)

                                                                                            7dB Min  f0+/-20MHz;

                                                                                            20dB Min f0+/-50MHz;

                                                                                            30dB Min f0+/-100MHz

输出电压驻波比V．S．W．R                                       ＜2.0

直流电压DC Voltage                                                        3V，5V，3V to 5V或其它

直流电流DC current                                                         7-10MA

四、结构Mechanical

重量Weight                                                 60（克）gram

外型尺寸Size                                            45X38X15mm

电缆Cable                                                  RG174 3M

连接器型号Connector               SMA,MCX,MMCX, SMB等客户要求

固定方式Mounting                     （磁铁） 吸附

外壳颜色Housing                                      黑Black

五、环境Environmental

1．工作温度Working Temp       -40℃~+105℃

2．防水测试：在水龙头下放置4小时，让水流冲在外壳上；4小时后拿起产品，底部没有进水现象，说明此产品具有良好的防水功能。

3．振动Vibration               Sine sweep 1g(0-p)10~50~10Hz each axis