Low-Profile High-Isolation MCX-J Bds High-Precision Antenna

• Customization: Available
• Directionality: Directional Antenna
• Frequency Band: B3 :1268.52±10.23MHz
• Model NO.: GL-KGR0401
• Material: ABS
• Sturcture Form: Surface Antenna
• VSWR: <1.5
• Fob Port: Guangzhou
• MOQ: 100
• Payment: Tt, Paypal
• Attribute: Reliable High-Precision Antenna
• Transport Package: Carton
• Specification: 53*29*24cm
• Trademark: LEHENG
• Origin: China
• HS Code: 8517710000
• Production Capacity: 10000PCS/Day
• Package Size: 27.00cm * 20.00cm * 10.00cm
• Package Gross Weight: 1.000kg
• Lead Time: 14 days (1 - 100 Pieces) ; To be negotiated ( > 100 Pieces)

Product Description

Product Description

GL-KGR0401 High Precision Antenna--High Accuracy Applications
The GL-KGR0401 is a low-profile, square-shaped high-precision antenna specifically designed for the BeiDou B3 frequency (1268.52±10.23MHz). It offers optimized gain across elevation angles, providing ≥0.5dBi at zenith and stable performance down to 30°. With excellent signal purity (axial ratio ≤3dB, isolation ≥15dB) and reliable impedance matching (VSWR ≤2.0), it ensures consistent reception for dedicated B3 applications. Its ultra-thin design (160×160×8 mm) and customizable MCX-J connector make it ideal for surface mounting in space-constrained installations such as vehicle roofs, UAV platforms, and integrated navigation systems. Built to operate in harsh environments (-40℃ to +75℃), it delivers robust performance where a low-profile form factor and specialized B3-band accuracy are required.

Specification

Frequency Range(MHz)	B3:1268.52±10.23MHz
Gain	-5dBi(Elevation 30°) ≥0.5dBi(Elevation 90°)
Axial Ratio	≤3dB
lsolation	≥15dB
mpedance	50Q
VSWR	≤2.0
Connector	MCX-J(Customizable)
Humidity	95%Non-condensing
Storage temperature	-45℃ to +80℃
Dperating temperature	-40℃ to+75℃
Dimensions	160*160*8mm

Functional Advantages

Comprehensive Multi-System Support

Compatible with all major global navigation satellite systems (BDS, GPS, GLONASS, and Galileo) across multiple frequency bands. 

Superior Signal Quality for High-Accuracy Applications

With an integrated Low-Noise Amplifier (LNA) offering high gain and a low noise figure (≤2.0), the antenna significantly improves signal reception and sensitivity.  

Robust Design with Low Power Consumption

Engineered for durability, the antenna operates reliably in extreme temperatures (-40℃ to +85℃) and high humidity (95% non-condensing). 

Core Applications

Surveying & Mapping
Ideal for high-accuracy geodetic surveying, cadastral mapping, and construction layout, where its stable phase center and multi-GNSS support enable centimeter-level positioning reliability.

Precision Agriculture
Enables automated guidance for farm machinery and supports variable-rate application systems, improving efficiency and crop yield through accurate, real-time positioning.

Unmanned Aerial Vehicles (UAVs)
Provides dependable navigation and positioning for drones used in aerial mapping, inspection, delivery, and agricultural monitoring, even in dynamic flight conditions.

Autonomous & Connected Vehicles
Supports automotive testing, ADAS development, and fleet management systems by delivering robust and continuous positioning data essential for navigation and telematics.

Critical Infrastructure & Timing
Suitable for synchronization in telecommunications networks, power grids, and scientific monitoring stations where precise timing and reliable GNSS signals are crucial.

FAQ

 
Q1: What level of positioning accuracy can this antenna support?

A: This antenna is designed to support centimeter to millimeter-level accuracy when used with a compatible GNSS receiver in RTK (Real-Time Kinematic) or PPK (Post-Processed Kinematic) modes.     Its stable phase center (±5mm) and low axial ratio ensure reliable signal quality for high-precision applications.
 
Q2: Is the antenna compatible with my existing GNSS receiver?

A: Yes, it supports all major GNSS systems (GPS, GLONASS, Galileo, BDS) across multiple frequencies.     It uses a standard SMA connector and operates on 3–12V DC, making it compatible with most industrial and surveying-grade receivers.
 
Q3: Can it be used in harsh environmental conditions?

A: Absolutely.  The antenna is built to operate in temperatures from -40℃ to +85℃ and withstand up to 95% non-condensing humidity, making it suitable for outdoor, marine, and industrial environments.

Q4: How should the antenna be mounted for optimal performance?

A: For best results, mount the antenna on a stable, metallic ground plane with a clear view of the sky.     Ensure the polarization (RHCP) is oriented upward, and avoid obstructions near the antenna's horizon.

Q5: Is the antenna suitable for moving platforms like drones or vehicles?

A: Yes.  Its lightweight design (≤150g), low power consumption, and robust performance across dynamics make it ideal for UAVs, autonomous vehicles, agricultural machinery, and marine navigation systems.