D-Helix™ Antenna HX-CH7018A

The Harxon HX-CH7018A embedded helix antenna is designed for high-precision positioning and offers superior satellite signal tracking, including GPS, GLONASS, GALILEO, and Beidou, as well as L-Band correction service. Its RTK-level positioning accuracy makes it ideal for integration into applications such as surveying and mapping, and various UAV operations like aerial photography, remote sensing, infrastructure inspection, traffic control, and public security.

Advanced D-QHA Technology for Consistent Performance

The HX-CH7018A antenna features multi-point feeding technology that ensures high phase center stability for outstanding positioning accuracy. By adopting advanced patented O-QHA technology and covering a wider frequency band, the HX-CH7018A achieves an extraordinary 2.8 dBi gain for reliable and consistent performance. Its high gain with ultralow signal loss, wide beam width for exceptional low-elevation satellite tracking, and symmetric radiation patterns deliver consistent performance even in challenging environments with significant blockage.

Strong Anti-Interference Performance

The HX-CH7018A optimizes circuit layout and equips a robust pre-filtered LNA that provides excellent out-of-band interference rejection and restrains possible unwanted electromagnetic interference, ensuring reliable GNSS signals for easy integration into positioning solutions.

Small Form Factor, Lightweight, Designed for Integration

Weighing only 8 g, the lightweight HX-CH7018A embedded antenna has a compact dimension, with
Key Features

- Supports GPS, GLONASS, Galileo, BeiDou, and L-Band correction services
- Centimeter-level phase center repeatability with high gain at low elevation
- Improved signal filtering and excellent multipath rejection
- Lightweight (8 g) and compact design for easier integration

Parameter	Details
Signal Received	GPS (L1/L2/L5)
	GLONASS (L1/L2)
	GALILEO (E1/E5a/E5b)
	BDS (B1/B2/B3)
	QZSS (L1/L2/L5/L6)
	IRNSS (L5)
	SBAS (L1/L5)
	L-Band
Nominal Impedance	50Ω
Polarization	RHCP
Axial Ratio	≤3dB
Gain RHCP (maximum)	2.6dBi (1166-1278 MHz), 2.8dBi (1559-1612 MHz),
	L-Band: 1.5dBi (@ Zenith)
LNA Gain	33±2dB
Noise Figure	≤2dB
Azimuth Coverage	360° [ Omni-d irectionall
Output VSWR	≤2.0
Passband Ripple	±2dB
Out of Band Rejection	Upper Band: <1400MHz>: 30dB, <1450MHz>: 33dB, <1700MHz>: 30dB
	Lower Band: <1000MHz>: 41dB, <1100MHz>: 40dB, <1130MHz>: 28dB
Operation Voltage	+3.3V to +5V DC
Operation Current	≤55mA
Dimensions	Ø44 x 28mm
Connector	IPEX Female
Weight	≤8g
Mounting	4 x M2 screws
Operating Temperature	-40°C to +70°C
Storage Temperature	-55°C to +70°C
Humidity	95% non-condensing
Water/Dust Resistance	IP67

Download Data Sheet