YH-901 GNSS antenna adopts multi-arm and multi-feed point technology, supports L1, L2/L5 and L-band satellite navigation signal reception of Beidou, GPS, GLONASS and GALILEO systems, has built-in multi-stage filters and low-noise amplifiers, good out-of-band suppression, strong anti-interference ability, and ensures normal operation in harsh electromagnetic environments. Meet the current needs of multi-system compatibility and high-precision measurement.
YH-901
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- Overview
- Key Features
- Parameters
- Applications
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Overview
Key Features
Multi-System & Multi-Band Compatibility with Strong Anti-Interference
Adopts multi-arm and multi-feed point technology, supporting reception of L1, L2/L5, and L-band signals from BDS, GPS, GLONASS, and Galileo (e.g., GPS L1/L2/L5, BDS B1/B2/B3). Built-in multi-stage filters and low-noise amplifiers (LNA) provide excellent out-of-band suppression, ensuring stable operation in harsh electromagnetic environments, ideal for high-precision measurement scenarios.
Optimized Antenna Design for Superior Signal Reception
Utilizes quadrifilar helix technology to ensure right-hand circular polarization (RHCP) and stable phase center performance, minimizing measurement errors. With peak gain ≥2.5 dBi, small gain roll-off, and axial ratio ≤1.5dB @ zenith, it excels in receiving low-elevation satellite signals, enhancing positioning reliability.
High-Performance LNA for Precise Signal Amplification
Features LNA with gain of 35±3.0dB, noise figure ≤1.5dB, and group delay variation ≤5ns, effectively amplifying weak signals while reducing noise interference. Output VSWR ≤1.8:1 (typ.) ensures stable signal transmission, compatible with 3.0~6.0V DC power supply (current ≤45mA).
Compact, Lightweight & Rugged for Portable Applications
Weighs ≤32g with a compact design, easy to carry and install (via 3 bottom screws). IP67 waterproof rating, operating temperature -40℃~+85℃, and 95% non-condensing humidity resistance make it suitable for UAVs, micro RTK, sub-meter handheld devices, and other portable equipment.
Parameters
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Numbered version： |
YH-901 V1.0 |
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Preparation / Date： |
2022.03 |
◆Product Introduction
YH-901 GNSS antenna adopts multi-arm and multi-feed point technology, supports L1, L2/L5 and L-band satellite navigation signal reception of Beidou, GPS, GLONASS and GALILEO systems, has built-in multi-stage filters and low-noise amplifiers, good out-of-band suppression, strong anti-interference ability, and ensures normal operation in harsh electromagnetic environments. Meet the current needs of multi-system compatibility and high-precision measurement.
◆Application fields
Suitable for occasions with requirements on volume and weight, such as UAVs, micro RTK, sub-meter handheld devices/tablets and other portable devices.
◆Technical features
1.The multi-arm spiral technology is adopted to ensure the right-hand circular polarization and phase center performance, and reduce the influence of measurement errors;
2. The antenna unit has the characteristics of high gain and small gain roll-off, and has good reception effect for low elevation angle satellite signals;
3. Sophisticated low noise, high gain amplification and excellent out-of-band suppression;
4. Small size, light weight, easy to carry and install.
◆主要技术参数(典型)
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Antenna |
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Patch Architecture |
Quadrifilar Helix |
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Supported positioning signal bands |
GPS: L1/L2/L5 GLONASS: L1/L2/L3 BDS: B1/B2/B3 Galileo: E1/E5/E6 L-band |
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Peak Gain* |
≥2.5 dBi |
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Polarization |
Right-hand circular polarization（RHCP） |
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Axial Ratio@zenith |
≤1.5dB |
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Azimuth Cov8erage |
360° |
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Impedance |
50 ohm |
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LNA |
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Frequency Range |
1164MHz~1278MHz 1525MHz~1615MHz |
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LNA Gain* |
35±3.0dB （Typ. @25°C） |
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Group Delay variation |
≤5ns |
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Noise Figure* |
≤1.5 dB@25°C , Typ. |
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Output VSWR |
≤1.8:1 typ. 2.0:1max |
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Operation Voltage |
3.0~6.0V DC(Recommended 3.3V or 5.0V) |
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Operation Current |
≤45mA |
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Mechanicals & Environmental |
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Dimension |
See attached picture |
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Connector |
SMA-J（Internal thread needle） |
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Radome |
ABS+PC |
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Weight |
≤32g |
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Attachment Method |
Through the 3 screws at the bottom |
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Operating Temp |
－40℃～＋85℃ |
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Storage Temp |
－45℃～＋85℃ |
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Humidity |
95% No-condensing |
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Waterproof |
IP67 |
Note: The sealing ring needs to be well pressed against the antenna support plane, which is the primary condition for achieving IP67 protection level.
◆Product Dimensions (mm)
Applications
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