UAV Antenna

Introduction
Key Features
Parameters
Applications
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Introduction

Harxon HX-HE401A is a high-performance embedded helix antenna supporting full-band signal reception from GPS, GLONASS, BDS, and Galileo. It offers high gain, wide bandwidth, and stable satellite tracking, ensuring reliable positioning performance. With its compact, lightweight, and robust design, the HX-HE401A combines superior RF performance with high reliability. It is easily integrated into lightweight UAVs and is compatible with a wide range of GNSS receivers. Typical applications include surveying and mapping, aerial surveying, navigation, remote sensing, disaster monitoring, traffic patrol, fleet management, public safety, etc.

Key Features

Consistent Performance across Full Frequency Bands

HE401A offers full support for superior satellite signals tracking, including GPS, GLONASS, Galileo, BeiDou, QZSS, and L-band, providing UAVs with reliable positioning in complex flight environments.
High Phase Center Stability and Consistent Performance

HE401A features a multi-point feeding technology that ensures a high phase center stability with centimeter level accuracy. It has a high peak gain and excellent axial ratios, enabling excellent multipath mitigation and a very precise phase center.
Small Form Factor, Light Weight, Designed for Integration

Weighting only 10g, the lightweight HE401A embedded antenna has a compact dimension, withФ45*H39.8mm only, making it ideal to be integrated into UAVs.
Tracking in Challenging Environments

The antenna delivers high gain and a wide radiation beam, enabling excellent reception of low-elevation satellite signals. It effectively tracks visible satellites even in challenging environments—such as under tree canopies or near buildings

Parameters

Performance
LNA
Mechaical
Environmental
Drawing

Signal Received	GPS L1/L2/L5 GLONASS G1/G2/G3 GALILEO E1/E5a/E5b/E6 BDS B1I/B2I/B3I/B1C/B2a/B2b QZSS L1/L2/L5/L6 L-Band
Nominal Impedance	50Ω
Polarization	RHCP
Axial Ratio	≤3dB
Peak Gain	2.8dBi typical 1164~1300: 3.8 dB 1525~1612: 3 dB