AT190 Helix Antenna-Antenna-ComNav Technology Ltd.

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OEM Board GNSS Receiver Handheld GNSS Optical Instrument RTK Drone 3D Laser Scanner Antenna Data Link Software
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Features

GPS L1, L2, L5, GLONASS L1, L2, BeiDou B1, B2, B3 and Galileo E1, E5a, E5b tracking
High gain (3.5dBi) with superior tracking performance at low elevation angle
Compact size and low noise figure
Ground Plane independent
High stability and repeatability at phase center
IP67-level waterproof design

Compact and Durable

The antenna's small size (Φ27.5×59mm, 25g) and IP67-level waterproof and dustproof certification make it rugged enough for outdoor use, including in harsh weather conditions.

High Performance

Delivers a high gain of 3.5dBi, ensuring superior tracking performance even at low elevation angles, crucial for maintaining signal quality in challenging environments.

High Phase Center Stability

The AT190 Helix Antenna ensures high stability and repeatability at the phase center, making it optimal for applications requiring precise GNSS positioning, such as Unmanned Aerial Vehicle (UAV), GIS, RTK and related mobile devices where need high accuracy GNSS positioning.

Product Parameter

Antenna

LNA

Physical

Environmental

Antenna

GPS	L1, L2, L5
GLONASS	L1, L2
Beidou	B1, B2, B3
Galileo	E1, E5a, E5b
Nominal Impedance	50Ω
Polarization	RHCP
Axial Ratio (90°)	≤ 3dB

LNA

LNA Gain	33±2dB
Noise Figure	≤ 2dB
VSWR Output	≤ 2.0
Operation Voltage	3.3 - 12VDC
Operation Current	≤ 45mA
Passband Ripple	± 2dB
Gain at Zenith	+ 3.5dBi

Physical

Dimension	Φ27.5×59mm
Connector	SMA male connector
Weight	25g

Environmental

Operating Temperature	-40°C to +85°C
Storage Temperature	-55°C to +85°C
Humidity	95% No-condensing
Water and Dust Proof	IP67
Drop	Survive from a 1.5m drop