SparkFun ANN-MB2 GNSS All-Band High Precision Antenna

SparkFun ANN-MB2 GNSS All-Band High Precision Antenna is an easy-to-use, reliable all-band (L1/L2/L5/E6/B3/L) antenna as part of u-blox high-precision solution. This antenna is designed to reduce time-to-market for modern wide-frequency, multi-constellation, high-precision GNSS applications. The ANN-MB2 antenna includes a frequency range of 1535MHz to 1602MHz L/L1 band, and 1166MHz to 1285MHz L5/L2/B3/E6 band. This antenna operates at a 3V to 5V supply voltage range, a typical 15mA supply current, and 50Ω impedance. The ANN-MB2 antenna offers a robust design, excellent price-to-performance ratio, and flexible mounting options for applications requiring an all-band high-precision GNSS antenna.

Features

  • Patch antenna:
    • Frequency:
      • 1535MHz to 1602MHz L/L1 band
      • 1166MHz to 1285MHz L5/L2/B3/E6 band
    • 50Ω impedance
    • Gain:
      • L: typical 5.4dBic
      • L1: typical 5.0dBic
      • L5: typical 4.5dBic
      • L2: typical 5.0dBic
      • E6: typical 4.2dBic 
    • Efficiency data:
      • L: Typical 64%
      • L1: Typical 56%
      • L5: Typical 55%
      • L2: Typical 60%
      • E6: Typical 50%
    • Axial ratio:
      • L/L1 band: 0.5dB to 1.3dB typical (Zenith)
      • L5/L2/B3/E6 band: 1.9dB to 2.9dB typical (Zenith)
    • RHCP polarization
  • RF front-end:
    • Frequency:
      • L/L1 band: 1535MHz to 1602MHz
      • L5/L2/B3/E6 band: 1166MHz to 1285MHz
    • Impedance: 50Ω
    • LNA gain:
      • L/L1 band: typical 31.0 ± 3dB
      • L5/L2/B3/E6 band: typical 31.5 ± 3dB
    • LNA noise figure:
      • L/L1 band: typical 3dB
      • L5/L2/B3/E6 band: typical 2.5dB
    • Output VSWR: typical 2.0
    • Cable insertion loss (RG-174, length 5m)
      • L/L1 band: typical 6.5dB
      • L5/L2/B3/E6 band: typical 5.5dB
    • 3V to 5V supply voltage
    • Typical 15mA supply current

Block Diagram

Block Diagram - SparkFun ANN-MB2 GNSS All-Band High Precision Antenna

Overview

SparkFun ANN-MB2 GNSS All-Band High Precision Antenna

Dimension Diagram

Mechanical Drawing - SparkFun ANN-MB2 GNSS All-Band High Precision Antenna
Inilathala: 2026-02-24 | Na-update: 2026-02-24