Helix Antenna JH001
Dual-Band Helix Antenna for Land/Sea/Air Applications
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Overview
Key Features
Parameters
Applications
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Overview
The JH001 is a robust, dual-frequency helical antenna with high interference immunity. It is designed to mitigate co-frequency signal interference, high-power signal interference, and multiple radio communication system interference, ensuring high-precision positioning in complex electromagnetic environments. The antenna employs beamforming technology to enhance signal strength and quality, and utilizes advanced pre-multiple filtering to effectively suppress out-of-band noise and multipath signals, significantly improving anti-interference capabilities. These features make it ideal for use in drones, aviation, vehicle-mounted, and shipborne devices. Additionally, it is compatible with multi-brand boards and can achieve static millimeter-level positioning.
Key Features
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Advanced Beamforming Technology
In environments where low-elevation co-frequency signal interference causes GNSS to malfunction, this antenna effectively reduces the reception of co-frequency signals below a 15-degree elevation angle. So it can achieve more than 20dB co-frequency signal attenuation, with greater suppression at lower elevation angles.
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Strong Multipath Signal Suppression
The antenna reduces the reception of non-line-of-sight signals by precisely controlling the beam direction, thus effectively mitigating the adverse effects of multipath interference.
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Superior Out-of-Band Signal Rejection
The antenna is equipped with advanced pre-multiple filters that effectively eliminate unwanted out-of-band interference signals, thereby reducing adjacent frequency signal interference.
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Compact and Durable Structure
This antenna boasts a small form factor (Φ101.1mm x H97mm) and light weight (200g). It is IP67-rated, providing excellent water and dust protection, along with corrosion and shock resistance.
Parameters
ANTENNA PERFORMANCE
Frequency Coverage
GPS L1/L2
VSWR
≤2
Impedance
50Ω
Polarization
RHCP
Axial Ratio
≤3dB
Coverage Angle
Azimuth: 0-360°; Elevation: 0-90°
Peak Gain
2.5dBic
CIRCUIT PERFORMANCE
LNA Gain
35±2dB
Out-of-Band Rejection
≥85dB@≥1625M3
≥85dB@≤1520M
≥85dB@≥1297M
≥85dB@≤1167M
Burnout Resistance
≥10W
Noise Figure
L1: ≤2.0dB L2: ≤2.5dB
Group Delay
≤10ns
VSWR
≤2
Operation Voltage
5-12V
Operation Current
≤150mA
SYSTEM PERFORMANCE
Phase Center Error
≤4mm
Positioning Accuracy
Static millimeter level
Adaptation Board
Compatible with multi-brand boards, with some requiring
LNA gain adjustment
MECHANICAL
Dimensions
Φ101.1mm*H97mm (Connector not included)
Weight
≤200g
Antenna Cover
Radome: PC; Base: Aluminum Alloy
Mounting
4*M3 screws fixed, upward or downward
Color
Black
Connector
TNC-K
ENVIRONMENTAL
Operating Temperature
-40°~+70°
Storage Temperature
-45°~+85°
Waterproof Rating
IP67
Salt Spray Test
Conducted for 96 hours using neutral salt spray
Mechanical Shock Test
≤50g
Quality Level
Industrial Grade
Product Certification
FCC, CE, RoHS
Localization Rate
100%
Applications
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