TW1889

TW1889 Accutenna® Pre-Filtered Embedded Dual-Band GNSS Antenna

The TW1889 employs Calian's patented Accutenna® technology providing dual-band GPS/QZSS L1/L2, GLONASSG1/G2/G3, Galileo E1/E5b, and BeiDou B1/B2 coverage and is especially designed for precision dual frequency positioning where light weight is important.

The TW1889 features a precision-tuned, circular dual-feed, stacked patch element. The signals from the two orthogonal feeds are combined in a hybrid combiner, amplified in a wideband LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output.

The TW1889 offers excellent axial ratio and a tightly-grouped phase centre variation.

The TW1889 covers GPS/QZSS L2 (1227.6 MHz, centre), GLONASS G2 (1248 MHz, centre), GLONASS G3 (1202.02 MHz, centre), GPA/QZSS L1/WAAS/EGNOS/MSAS (1575.42 MHz), GLONASS G1 (1602 MHz, centre), Galileo E1 (1575.42 MHz, centre), Galileo E5b (1207.14 MHz, centre), BeiDou B1 (1575.42 MHz, centre), and BeiDou B2 (1207.14 MHz, centre).

The TW1889 it has a pre-filter that increases the antenna’s immunity to high-amplitude interfering signals, such as LTE and other cellular signals.
 

• Autonomous uncrewed aerial vehicles (UAVs)
• Precision GNSS position
• Dual-frequency RTK receivers
• Mission Critical GNSS Timing
• Network timing & synchronization

Antenna:- Measured with a 100 mm ground plane