TW3865/TW3867 Embedded Dual-Band GNSS Antennas

The TW3865 and TW3867 employ Calian's unique Accutenna® technology providing dual-band GPS L1 and L2, GLONASS G1 and G2, BeiDou B1, and Galileo E1 coverage and are especially designed for precision dual-frequency positioning. The antennas feature a precision-tuned, circular dual feed and 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 TW3867 has a strong pre-filter to mitigate intermodulated signal interference from LTE and other cellular bands. Both antennas offer excellent axial ratio and a tightly grouped phase center. They cover GPS L2 (1227.6 MHz), GLONASS G2 (1248 MHz center), GPS L1/WAAS/EGNOS/MSAS (1575.42 MHz), GLONASS G1 (1602 MHz, center), BeiDou B1 (1561 MHz, 1589 MHz), and Galileo E1. The OEM antennas are supplied with a standard 60 mm diameter circular ground plane with a coaxial cable terminated with the customer’s 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.