L1/L2/L5 High Performance Multiband RTK GNSS Active Quad Helix Antenna

Highlights

• •Active quad helix design enables simultaneous reception of L1, L2, L5, and global GNSS signals for enhanced accuracy
• •IP67-rated automotive-grade components ensure reliable performance in harsh environments
• •Compact, lightweight build minimizes integration effort and fits retrofit applications
• •Low phase center variation across azimuth and elevation for improved signal integrity
• •Integrated SMA connector simplifies installation and system integration

Specs

Supported Frequencies

1166–1280 MHz (L1, L2, L5, GLONASS G1, G2, G3, Galileo E1, E5a, E5b, BDS B1i, B2i, B1c, B2a, B2b, B3, SBAS L1, L5, QZSS L1, L2, L5, IRNSS I5), 1550–1610 MHz (L1, E1, B1i, B1c, G1, B2a, B2b, SBAS L1, L5, QZSS L1, L2, L5, IRNSS I5)

Polarization

Right hand circular (RHC)

Peak Efficiency

46–49%

Realized Gain

1.1 dB ± 0.5 dB

Axial Ratio Max

1.2 dB at zenith, max 0.9 dB at zenith

VSWR Max

2:1

Beamwidth

135° × 125°

Phase Center Variation

max 10 mm at 40° elevation, max 10 mm between samples, max 5 mm over frequency band

RF Specifications

30 dBic (1227 MHz), 28 dBic (1575 MHz), 28 dBic (1602 MHz)

LNA Gain

32–37 dB

Noise Figure

1.5 dB max, 2 dB max

Current

29–45 mA max

Voltage

3.0–18 V

Out-of-Band Rejection

40 dBc

Group Delay Variation

<5 ns over GNSS bands

EMI Immunity

Out-of-band 30 V/m

Circuit Protection

15 kV ESD (human body model, air discharge)