TW3887 Embedded Dual-Band GNSS Antenna

The TW3887 employs Calian's patented Accutenna® technology providing dual-band GPS-L1/L2, GLONASS-G1/G2 + BeiDou B1/B2b + Galileo E1/E5b coverage and is especially designed for precision dual frequency positioning.

The TW3887 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 TW3887 has a pre-filter which increases the antenna’s immunity to high amplitude signals, such as LTE and other cellular signals. The TW3887 offers excellent axial ratio and a tightly grouped phase centre variation.

The TW3887 covers GPS L2 (1227.6MHz), GLONASS G2 (1248MHz centre), GPS-L1/WAAS/EGNOS/MSAS (1575.42 MHz), GLONASS-G1 (1602 MHz, centre), BeiDou B1/B2b (1575 and 1207 MHz) and Galileo E1. (1561 and 1589 MHz).

The antenna is supplied with a standard 60 mm (dia.)iameter circular ground plane, with a coaxial cable terminated with your choice of connector.

Mounting holes are provided for attachment to larger ground planes. Custom tuning and ground plane options may be available, depending on purchase level commitment.
 

• Very low noise preamp < 2.5 dB
• Axial ratio: < 2.0 dB typ.
• Tight phase centre variation
• High-gain LNA (28 dB typ.)
• Low current (24 mA typ.)
• ESD circuit protection (15 kV)/span>
• Invariant performance from 2.5 to 16 VDC

Applications:

• Precision GPS position
• Dual-frequency RTK receivers
• Law enforcement and public safety
• Network timing & synchronization

Antenna:- Measured with a 100 mm ground plane