GPS天线就是通过接受卫星信号，进行定位或者导航的终端。而接受信号就必须用到天线。 GPS卫星信号分为L1和L2，频率分别为1575.42MHZ和1228MHZ，其中L1为开放的民用信号，信号为圆形极化。信号强度为-166DBM 左右，属于比较弱的信号。这些特点决定了要为GPS信号的接受准备专门的天线。而我司的CERAMIC PATCH ANTENNA 优点在于体积小,且环境温度变化对其影响不大。
Environmental Conditions
| Operation Temperature | - 20℃ to + 65℃ |
| Storage Temperature | -30℃ to + 75℃ |
| Relative Humidity | 40% to 95% |
Electrical Specifications
| Input Voltage | Min:2.7 V Typ.: 3.0V Max:3.3V |
| Current Consumption | At 3.0V Min:2mA Typ: 4.2mA Max: 5mA |
Cable & Connector
| RF Cable | RF Coaxial Cable,ψ1.13± 0.1mm, |
| L = 227±4mm(with I-PEX Connector) | |
| RF Connector | I- PEX ( F ) |
Antenna
| Antenna Dimensions | 15mm*15mm*4mm |
| Frequency Range | 1575.42 ± 1.023 MHz |
| 1602± 6.5 MHz | |
| Gain | 1575MHz @ -6.5dBi at Zenith Typ. |
| 1602MHz @ -4.5dBi at Zenith Typ. | |
| Polaration | RHCP |
| Output VSWR | 2.0 Max |
LNA
| Frequency Range | 1575.42 ± 1.023 MHz |
| 1602± 6.5 MHz | |
| Gain | 18dB Typ. |
| Noise Figure | 1.5dB Typ. |
| Output Impedance | 50Ω |
| Output VSWR | 2.0 Max |
Total Specifications
| Frequency Range | 1575.42 ± 1.023 MHz. |
| 1602 ± 6.5MHz. | |
| Gain | 1575MHz @ 11.5dBi at Zenith Typ. |
| 1602MHz @ 13.5dBi at Zenith Typ. | |
| Output Impedance | 50Ω |
