High Precision Dual-Band L1 L2 L5 BeiDou B1 B2 IP67 28dB LNA RTK GNSS Active Antenna GPS
High precision dual-band RTK GNSS active antenna supporting GPS, BeiDou and Galileo. 28dB LNA, low noise, IP67 waterproof, ideal for surveying, tracking and autonomous vehicles.
Product Description
The GA384HGA High Precision Multi-Band GNSS Active Antenna is designed for RTK and high-accuracy positioning applications, supporting GPS, BeiDou, Galileo, QZSS and IRNSS constellations.
Featuring a dual-band stacked patch antenna with four-feed architecture, the GA384HGA delivers excellent axial ratio, stable RHCP polarization, and reliable performance across L1 / L2 / L5 frequency bands.
An integrated low-noise LNA and high-rejection SAW filter design ensures superior signal-to-noise ratio, even in challenging RF environments.
With an IP67 waterproof enclosure, wide operating temperature range, and compact external form factor, GA384HGA is ideal for surveying, autonomous vehicles, navigation systems, and industrial tracking solutions.
Key Features
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Multi-band GNSS reception (L1 / L2 / L5)
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Supports GPS, BeiDou, Galileo, QZSS & IRNSS
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Four-feed stacked patch antenna architecture
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Low axial ratio, stable RHCP polarization
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Integrated LNA with 28 dB typical gain
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Low noise figure ≤ 2 dB
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High-rejection SAW filtering
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IP67 waterproof, industrial-grade design
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Wide operating temperature: −40 °C to +85 °C
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SMA connector for easy integration
GNSS & Antenna Performance
| Item | Specification |
| Supported GNSS | GPS (L1, L1C, L5C) |
| BeiDou (B1I, B1C, B2a) | |
| Galileo (E1, E5a) | |
| QZSS (L5) | |
| IRNSS (S-L5) | |
| Antenna Architecture | Four-feed stacked patch |
| Polarization | RHCP |
| Axial Ratio | ≤ 3.0 dB @ zenith |
| Peak Gain (High Band) | 3.85 dBi (38×38 mm GND) |
| Peak Gain (Low Band) | 2.53 dBi (38×38 mm GND) |
RF Performance
| Item | Specification |
| LNA Gain | 28 dB typ. |
| Noise Figure | ≤ 2 dB |
| Output Impedance | 50 Ω |
| Output VSWR | < 2.5 |
| Out-of-Band Rejection | ≥ 30 dB (±50 MHz) |
| Supply Voltage | 3.3–5 V (3.3 V typ.) |
| Current Consumption | 21 mA @ 3.3 V |
Mechanical & Environmental
| Item | Specification |
| Antenna Dimensions | Ø59.7 × 56.7 × 21 mm |
| Operating Temperature | −40 °C to +85 °C |
| Humidity | 40% – 95% RH |
| Waterproof Rating | IP67 |
| Compliance | RoHS, REACH |
| ESD Protection | IEC61000-4-2 ±18 kV |
Applications
RTK Surveying & Mapping Equipment
Autonomous Vehicles & Robotics
Precision Agriculture Systems
Industrial Navigation & Positioning
Asset Tracking & Telematics Devices
Smart Transportation & Fleet Management
