33-1721-05-0150

TW1721 When precision matters.® TW1721 Accutenna® Single-Band Embedded GNSS Antenna Frequency Coverage: GPS/QZSS-L1 + GLONASS-G1 + Galileo-E1 + BeiDou-B1 Overview The TW1721 is a compact wideband GNSS antenna employing patented Accutenna® technology. This antenna provides accurate reception for all upper-band GPS/QZSS-L1, GLONASS-G1, Galileo-E1, and Beidou-B1 signals and associated augmentation signals (WAAS, EGNOS and MSAS). The TW1721 features a novel 25 mm dual-feed wideband patch element that, in sharp contrast with its competitors, provides a truly circularly polarized response, with a typical axial ratio of less than 2.0 dB over the full bandwidth. This provides a more linear carrier phase response, substantially improved multipath rejection, and tight phase centre variation (PCV), making the TW1721 ideal for applications that require high-precision positioning and timing in a small form factor. The TW1721 features a two-stage low-noise amplifier (LNA) with a midsection filter. The Accutenna® technology provides an excellent axial ratio that is constant across the supported bandwidth. The built-in 35 mm 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 Features Benefits • High-accuracy GNSS positioning • Precision agriculture, mining & construction • Law enforcement & public safety • Fleet management & asset tracking • Avionics • Compact dual-feed patch element • Low noise LNA: < 1.0 dB • Axial ratio: 2.0 dB typ. over the full bandwith • LNA gain: 28 dB typ. • Voltage input range: 1.8 to 16 VDC • ESD circuit protection: 15 kV • Temperature-compensated gain • RoHS and REACH compl • Great multipath rejection • Increased system accuracy • Improved carrier phase linearity • Excellent signal-to-noise ratio • Great out-of-band signal rejection • Compact form factor • Reliable performance About Tallysman: With global headquarters and manufacturing in Ottawa, Canada, Tallysman is a leading manufacturer of highprecision antennas and components for Global Navigation Satellite System (GNSS) applications. Tallysman’s mission is to support the needs of a new generation of positioning systems by delivering unprecedented antenna precision at competitive prices. Learn more at www.tallysman.com Revision: 1.8 Contact us: info@tallysman.com T: +1 613 591-3131 TW1721 Accutenna® Single-Band Embedded GNSS Antenna Frequency Coverage: GPS/QZSS-L1 + GLONASS-G1 + Galileo-E1 + BeiDou-B1 Antenna Low Noise Amplifier (LNA) - Measured at 3V and 25°C Technology Dual-feed RHCP ceramic patch Frequency Bandwith Gain * Axial Ratio dBic typ. at Zenith dB at Zenith L1 4.5 ≤ 2.0 L2 - - GNSS GPS / QZSS 1559 - 1606 MHz Out of Band Rejection - Upper Band Lower Band < 1500 MHz > 40 dB < 1525 MHz > 45 dB > 1630 MHz > 45 dB - L5 - - G1 4.0 ≤ 2.0 G2 - - Architecture LNA stage 1 → filter → LNA stage 2 G3 - - Gain 28 dB typ., 25 dB min. E1 4.5 ≤ 2.0 Noise Figure 1.0 dB typ. E5A - - VSWR < 1.5:1 typ. | 1.8:1 max. E5B - - Supply Voltage Range 1.8 VDC min. to 16 VDC max. (+12 VDC rec. max.) E6 - - Supply Current 10 mA typ. | 15 mA max. ( @ 85 °C ) B1 4.5 ≤ 2.0 ESD Circuit Protection 15 kV air discharge. B2 - - P 1dB Output - B2a - - Group Delay - B3 - - IRNSS / NavIC L5 - - QZSS L6 - - - - Iridium - - Globalstar - - Efficiency - GLONASS Galileo BeiDou L-Band Services (1525 MHz - 1559 MHZ) Mechanical Diagram Satellite Communications Other Axial Ratio at 10° - PC Variation * with 100 mm ground plane Mechanicals Size 35 mm (dia.) x 7.25 mm (h.) Weight 18 g Radome - Mount Adhesive | 4 M2 screws Environmental Operating Temperature -40 °C to +85 °C Storage Temperature -50 °C to +95 °C Vibration MIL-STD-810-D Shock Vertical axis: 50 G, other axes: 30 G Salt Fog Not Applicable IP Rating Not Applicable Compliance IPC-A-610, FCC, RED / CE Mark, RoHS, REACH Ordering Information Part Number Where xx = connector type; yyyy= cable length (in mm); and zz = reserved for Tallysman’s use Warranty: Parts and Labour One year (extended warranty available) Please refer to our Ordering Guide to review available radomes and connectors at: https://www.tallysman.com/resource/tallysman-ordering-guide/ © 2019 Tallysman Inc. All rights reserved. Tallysman, the “When Precision Matters” tag line and the Tallysman logo are trademarks or registered trademarks of Tallysman Inc. and/or its affiliates in Canada and certain other countries. All other trademarks mentioned in this document are the property of their respective owners. The information presented is subject to change without notice. Tallysman assumes no responsibility for any errors or omissions in this document. Tallysman Wireless Inc. hereby disclaims any or all warranties and liabilities of any kind. Revision: 33-1721-xx-yyyy-zz 1.8 www.tallysman.com