33-1320-05-0150

TW1320/TW1322 Embedded GPS/GLONASS Antenna The TW1320/TW1322 is a high performance OEM GNSS antenna covering the GPS L1, GLONASS L1 and SBAS (WAAS, EGNOS & MSAS) frequency band (1575 to 1606 MHz). It features a patch element with 40% wider bandwidth than previously available in this format. Unlike its competitors, both GPS-L1 and GLONASS signals are included in the 1dB RHCP received power bandwidth. The TW1320/TW1322 has a two stage Low Noise Amplifier (LNA) with a mid-section SAW. An optional tight pre-filter is available with part number TW1322 to protect against saturation by high level sub-harmonics and L-Band signals. TW1320 Dimensions (mm) The built-in 35mm circular ground plane should ideally be 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 optimized integration into OEM end-user modules. Applications • • • • • • Embedded OEM applications Precision Agriculture, Mining & Construction Military & Security Avionics Law Enforcement & Public Safety Fleet Management & Asset Tracking Features Benefits • • • • • • • • • • • • • • 1dB bandwidth 1575MHz-1606MHz Very low noise LNA: 1 dB 4dB Axial Ratio @1590MHz, 8db over B/W High rejection SAW filter LNA gain: 28dB TW1320, 26dB TW1322 typ. Lowest current draw on the market -9mA typical ESD circuit protection: 15 KV Wide Supply voltage: fixed 2.5V to 16V Great multipath rejection Increase system accuracy Excellent signal to noise ratio Great out of band signal rejection Compact form factor RoHS compliant TW1320/TW1322 Embedded GPS/GLONASS Antenna Specifications At; Vcc = 3V, over full bandwidth, T=25°C Antenna Architecture Polarization 1 dB Bandwidth 10dB Return Loss Bandwidth Antenna Gain (with 100mm ground plane) Axial Ratio Wideband Single Feed Patch RHCP 31MHz 45Hz 4.5dBic SAW filter-> LNA stage 2 SAW Prefilter ->LNA stage 1 -> SAW filter-> LNA stage 2 1574MHz to 1606MHz 28dB min., TW1320; 26dB min, TW1322, +/- 2dB, 1575MHz to 1606MHz TW1320: 35dB. TW1322: >70dB. TW1320: 25dB. TW1322: >45dB. TW1320: >1650MHz >35dB. TW1322: >70dB.