The TW1500 is a low cost OEM dual feed, magnetic mount, passive Left Hand Circularly Polarised antenna (LHCP) for the 1610 to 1620 MHz frequency band, specifically designed to maximise the performance of the GlobalStar™ STU (Simplex Transmit Unit) modems.
The wide-band dual feed patch element in the TW1500 has an excellent axial ratio across the entire GlobalStar™ bandwidth. Unlike single feed antennas, the TW1500 provides excellent multipath rejection and a truly circular transmission response across the GlobalStar™ band.
The TW1500 includes a built-in 35mm circular ground plane but best performance is obtained with this augmented with a local system ground plane or reflecting surface (DC connection not required).
OEM antennas are easily detuned by the local environment. Tallysman offers custom tuning services for optimised integration into OEM end-user modules
- Dual Feed Wide Band Patch
- Axial ratio, 3 dB over full bandwidth
- High gain 4.25 dBi
- 15 KV ESD circuit protection
- Robust design
- Small form factor
- -40C to +85C Operation