Satellite Positioning Antenna Helical Spiral Transmitting Multi-band Beidou GLONASS GPS GNSS Antenna
1. Specification
| A. Electrical Characteristics | ||
| Frequency | 1197-1278MHz; 1559-1606MHz | |
| Supported Positioning signal bands | GPS: L1/L2 BDS: B1/B2/B3 GLONASS: G1/G2 Galileo: E1/E5b | |
| Peak Gain | ≥2dBi | |
| Impedance | 50Ohm | |
| Polarization | RHCP | |
| Axial Ratio | ≤1.5 dB | |
| Azimuth Coverage | 360° | |
| B. LNA and Filter Electrical Properties | ||
| LNA Gain | 35±2dBi(Typ.@25℃) | |
| Noise Figure | ≤1.5dB@25℃,Typ.(Pre-filtered) | |
| Output VSWR | ≤1.8 : 1Typ. 2.0 : 1 Max | |
| Operation Voltage | 3-16 V DC | |
| Operation Current | ≤45mA | |
| C. Material & Mechanical Characteristics | ||
| Connector Type | SMA connector | |
| Dimension | Φ27.5x56mm | |
| Radome material | PC+ABS | |
| Waterproof | IP67 | |
| Weight | 0.018Kg | |
| C. Environmental | ||
| Operation Temperature | - 40 ˚C ~ + 85 ˚C | |
| Storage Temperature | - 40 ˚C ~ + 85 ˚C | |
| Humidity | ≤95% | |
2. Antenna - S Parameter Test Data
2.1 VSWR

2.2 LNA Gain:
| Frequency (MHz) | Gain (dBi) | Frequency (MHz) | Gain (dBi) | |
| 1195.0 | 30.91 | 1555.0 | 32.22 | |
| 1200.0 | 32.02 | 1560.0 | 34.14 | |
| 1205.0 | 33.15 | 1565.0 | 35.37 | |
| 1210.0 | 34.27 | 1570.0 | 35.14 | |
| 1215.0 | 35.11 | 1575.0 | 34.94 | |
| 1220.0 | 35.80 | 1580.0 | 34.90 | |
| 1225.0 | 36.40 | 1585.0 | 35.00 | |
| 1230.0 | 36.74 | 1590.0 | 34.61 | |
| 1235.0 | 36.57 | 1595.0 | 34.88 | |
| 1240.0 | 35.82 | 1600.0 | 32.42 | |
| 1245.0 | 34.49 | 1605.0 | 31.26 | |
| 1250.0 | 33.07 | 1610.0 | 31.52 | |
| 1255.0 | 31.59 | |||
| 1260.0 | 30.45 | |||
| 1265.0 | 29.47 | |||
| 1270.0 | 28.61 | |||
| 1275.0 | 27.93 | |||
| 1280.0 | 27.51 | |||
| 3D | 2D-Horizontal | 2D-Vertical | |
| 1195MHz | ![]() | ![]() | ![]() |
| 1235MHz | ![]() | ![]() | ![]() |
| 1280MHz | ![]() | ![]() | ![]() |
| 3D | 2D-Horizontal | 2D-Vertical | |
| 1555MHz | ![]() | ![]() | ![]() |
| 1585MHz | ![]() | ![]() | ![]() |
| 1610MHz | ![]() | ![]() | ![]() |