High Gain Helix GNSS Antenna for UAV Navigation

Product Parameters

HA-301A GNSS antenna adopts eight-arm coupling and four-feed point feeding technology, supports L1 and L2 dual-band satellite navigation signal reception of Beidou II, GPS, GLONASS and GALILEO systems, built-in low noise amplifier, and adopts two-stage filter , good out-of-band suppression and strong anti-interference ability, ensuring normal operation in harsh electromagnetic environments. Meet the needs of current multi-system compatibility and high-precision measurement.

• The antenna adopts multi-arm spiral technology, which ensures the performance of right-handed circular polarization and phase center, and reduces the influence of measurement errors;

• The antenna unit has the characteristics of high gain and small gain roll-off, and has a good reception effect on satellite signals at low elevation angles;

• Compact low noise, high gain amplification and excellent out-of-band rejection;

• Electrostatic protection: 15KV (air discharge);

• Small size, light weight, easy to carry and install.

Main technical indicators (typical)

Patch Architecture:Quadrifilar Helix

Supported positioning signal bands

BD：B1/B2/B3；

GPS：L1/L2；

GLONASS：G1/G2；

Galileo：El/E5b

Peak Gain*:≥2.0 dBi

Polarization:RHCP

Axial Ratio@zenith:≤1.5dB

Azimuth Coverage:360°

Impedance:50 ohm

LNA

Frequency Range:1197MHz~1278MHz/1559MHz~1606MHz

LNA Gain*:35±3.0dB（Typ. @25°C）

Noise Figure*:≤1.5 dB@25°C , Typ.

Output VSWR:≤1.8:1 typ. 2.0:1max

Operation Voltage:3.0~6.0V DC

Operation Current:≤45mA

Mechanicals & Environmental

Dimension:Φ71mm*27.5mm

Connector:SMA-J

Radome:ABS+PC

Operating Temp:－40℃～＋85℃

Storage Temp:－45℃～＋85℃

Humidity:95% No-condensing

Waterproof:IP67