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High gain multi-frequency GNSS antenna GL301

Multi-star Multi-frequency Antenna GL301
  • GL301

  • Asialeren

  • 8517710000

  • 100pc

  • Accepted

  • 10000pc/day

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Electrical Characteristics

Antenna

Antenna

1

Antenna model

GPS  Compass GLONASS GALILEO

2

Nominal frequency

GPS       L1:1575.42±1.023MHz,

L2: 1227±1.023MHz;

L5 :1176±1.023MHZ

Compass                B1:1561±2.046 MHz,                                   B2:1207±2.046MHz, B3:1268±10.23MHz;

GLONASS L1=1602+0.5625*k(MHz), L2=1246+0.4375*k(MHz)

GALILEO E1:   1575.42

3

Frequency Range

1197-1278/ 1559-1612MHz

4

V.S.W.R

≤2 .0

5

Axial Ratio  

elevation 90 ° :≤3 ,

elevation 15 °:≤5

6

Gain

elevation 90 °: ≥6 ,            elevation 20 °: ≥0     plane

7

Front to back Power  

±60°  ≥15dB

8

Phase center( mm)

<2

9

Impedance

50Ω

10

Polarization

RHCP

LNA

1

LNA Gain

38±2dB

2

V.S.W.R

<2

3

Noise  Figure

<1.0

4

DC Voltage

3.3~12V

5

Current  

25~40 mA


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Product Introduction

  1. Universal Compatibility
    Supports all major global navigation systems (GPS L1/L2/L5, GLONASS, Galileo, Compass B1/B2/B3) across 1197-1612MHz frequency range, ensuring global positioning coverage.

  2. High-Sensitivity Performance
    Integrated 38dB Low-Noise Amplifier (LNA) with <1.0 noise figure captures weak signals in challenging environments, while <2mm phase center stability ensures centimeter-level accuracy.

  3. Superior Signal Quality
    ≤2.0 V.S.W.R and Right-Hand Circular Polarization (RHCP) minimize signal loss. Axial ratio ≤3 (at 90° elevation) and front-to-back ratio ≥15dB reject multipath interference.

  4. Robust & Energy Efficient
    Wide voltage input (3.3V-12V) and low current consumption (25-40mA) make it ideal for battery-powered field equipment like drones and portable devices.

  5. Optimized Radiation Pattern
    High gain (≥6dB at zenith, ≥0dB at 20° elevation) and wide ±60° coverage ensure consistent performance across varied installation angles and moving platforms.

Application scenarios

  • Precision Agriculture: RTK-guided tractors requiring multi-band correction

  • Surveying & Mapping: Base stations needing stable phase center for geodetic work

  • Marine Navigation: Sailboats in open water requiring GLONASS/Galileo coverage

  • Drone Operations: UAVs performing LiDAR surveys in urban canyons

  • IoT Trackers: Long-term asset monitoring with low power consumption

GL301 is used in drones

FAQ

Q: Does this antenna support modern GPS L5 signals?
A: Yes, it fully supports GPS L5 (1176±1.023MHz) for high-accuracy applications.


Q: What power supply is required?
A: It operates at 3.3V-12V DC with only 25-40mA current draw.


Q: Is the LNA built into the antenna?
A: Yes, it includes a 38dB gain LNA with <1.0 noise figure.


Q: Can it be used for compass applications?
A: Absolutely, it supports Compass B1/B2/B3 frequencies (1561/1207/1268MHz).


Q: What is the phase center stability?
A: Critical for surveying - maintains <2mm phase center offset.


Q: How does it perform in low-elevation scenarios?
A: Maintains ≥0dB gain at 20° elevation and ≤5 axial ratio at 15°.


Q: Is it suitable for mobile installations?
A: Yes, the ±60° coverage pattern is ideal for vehicles/vessels.


Q: What connector type does it use?
A: Standard 50Ω impedance.

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