Multi-GNSS High Precision Antenna Technical Overview
1. Overview
The
Multi-GNSS High Precision Antenna is designed to deliver centimeter-level
positioning accuracy and ultra-stable timing by simultaneously receiving signals
from multiple global navigation satellite systems (GNSS), including GPS,
GLONASS, Galileo, Beidou, and Galileo. This antenna minimizes positioning errors
caused by multipath interference, ionospheric delays, and signal occlusion,
making it ideal for mission-critical applications.
2. Key Technical Specifications
Parameter Description
Supported GNSS
Systems GPS (L1/L5), GLONASS (G1/G2), Galileo (E1/E5), Beidou
(B1/B2a/B2b).
Frequency Bands L1 (1575.42 MHz), L5 (1176.45 MHz), E1 (1975.42
MHz), B1 (2405.00 MHz).
Gain ≥30 dBi (depending on antenna type: helical,
patch, or array).
Impedance 50Ω (nominal) – matched via integrated circuits
or external matching networks.
Polarization Linear (Vertical/Horizontal) or
Circular (for enhanced multipath rejection).
Beamwidth 1–5° (narrow beam for
precision tracking).
导体材料 Oxygen-free copper (low loss) or ceramic substrate
(high stability).
Mounting Options Magnetic, Screw, or adhesive mounts –
compatible with vehicles, drones, and fixed infrastructure.
Environmental
Rating IP67/IP68 (waterproof and dustproof) – suitable for extreme conditions
(-40°C to +85°C).
3. Core Design Features
3.1 Multi-GNSS Signal
Integration
Simultaneous Reception: Combines signals from multiple GNSS to
improve signal availability and reliability, especially in urban canyons or
obstructed environments.
Interference Mitigation: Advanced filtering and
signal processing algorithms reduce cross-system interference and multipath
errors.
3.2 High Precision Tracking
Trimble RTX Technology: Supports RTK
(Real-Time Kinematic) for centimeter-level accuracy.
Atomic Clock
Synchronization: Ensures ultra-stable timing (±10 ns) for critical applications
like autonomous vehicles.
3.3 Robust Antenna Structure
Low-Profile Design:
Minimizes physical obstructions while maintaining high
sensitivity.
Anti-Vibration Mounts: Essential for drones, vehicles, and
industrial machinery.
4. Typical Applications
Autonomous
Vehicles
Precise navigation, obstacle avoidance, and lane-keeping
systems.
Drone Mapping & Surveying
High-accuracy geolocation for
drone-based LiDAR and photography.
Precision Agriculture
Farm equipment
guidance and crop monitoring via real-time positioning.
Surveying &
Mapping
Centimeter-level mapping for construction, mining, and GIS
applications.
Military & Defense
Secure location tracking and
communication in contested environments.
5. Product
Recommendations
Vendor/Model Key Features Gain Supported GNSS
Systems
Trimble X7 RTX-powered antenna, 35 dBi gain, supports multi-GNSS and
Galileo. 35 dBi GPS, GLONASS, Galileo, Beidou
Leica GRX1100 High-precision
array antenna, 30 dBi gain, integrated with Leica’s survey software. 30 dBi GPS,
GLONASS, Galileo,北斗
u-blox NEO-M8N Compact ceramic antenna, 25 dBi gain,
supports multi-GNSS with low power consumption. 25 dBi GPS, GLONASS, Galileo,
Beidou
Huawei HiSilicon GNSS Embedded antenna module, 20 dBi gain, optimized
for Chinese Beidou system. 20 dBi GPS, GLONASS, Galileo, Beidou
6. Design
Guidelines
Environmental Adaptability:
Use ceramic substrates for
temperature stability and metallic radomes for EMI protection.
Signal
Processing:
Integrate Kalman filters or RTK algorithms to refine positioning
data.
Testing & Validation:
Perform RTK testing in real-world
scenarios to verify accuracy under dynamic conditions.
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