Design sketch
Dimensions
Multi-constellation Multi-band Wide Voltage Spiral Antenna
AH201b GNSS antenna, with dobby coupling and four-feedpoint feeding technology, supports L1 and L5 dual-band satellite navigation signal reception of BeiDou II, GPS, GLONASS and GALILEO systems, with built-in low-noise amplifier, two-stage filter, good out-of-band rejection and strong anti-interference ability, ensuring normal operation in harsh electromagnetic environment. Meet the current demand for multi-system compatibility and high-precision measurement.
AH201b-GNSS Spiral Antenna | |
Patch Architecture | Four-armed spiral structure |
Supported positioning signal bands | BEIDOU：：B1/B2a； GPS：L1/L5； Galileo：El/E5a GLONASS：L1 |
Peak Gain | ≥1.5 dBi |
Polarization | RHCP |
Axial Ratio@zenith | ≤1.5dB |
Azimuth Coverage | 360° |
Characteristic impedance | 50 ohm |
LNA | |
Frequency Range | 1176.45±10.23MHz 1559MHz~1606MHz |
LNA Gain | 25±3.0dB （Typ. @25°C） |
Noise Figure | ≤1.5 dB@25°C , Typ. |
Output VSWR | ≤1.8:1 typ. 2.0:1max |
Operation Voltage | 3.0~12V DC |
Operation Current | ≤45mA |
Mechanicals & Environmental | |
Dimension | see attached figure |
Connector | SMA-J（Internal threaded female needle） |
Radome | ABS+PC |
Weight | ≤16g |
Attachment Method | Through the connector |
Operating Temp | －40℃～＋85℃ |
Storage Temp | －55℃～＋85℃ |
Humidity | 95% No-condensing |
Waterproof | IP67 |
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