GNSS Products
Documents
Comparing GNSS Antenna Performance
4000 Series White Paper – New Challenges for GNSS Patch Antennas
Tallysman TW4000 Series White Paper
Patch Antennas for the New GNSS (GPS World Article Feb /12)
Multi-constellation GNSS
TW1017 Compact Embedded Brickwall Filtered GPS L1 Antenna
The TW1017 by Tallysman Wireless is a small, high performance, low profile, embedded GPS L1 antenna, specially designed for industrial and military precision positioning and timing applications.
The TW1017 features a high performance custom tuned ceramic patch element, a tight bandpass SAW filter and a very low noise amplifier (LNA). It covers the GPS L1 and SBAS (WAAS /EGNOS/MSAS) frequency band (1572.5 to 1578 MHz), and it offers great circular polarized signal reception, multipath rejection and out of band signal rejection.
The TW1017 LNA gain is optimised to capture the LNA noise figure for OEM applications.
A SAW pre-filter prevents saturation of the LNA by high signal levels associated with terrestrial L-Band interference.
Tallysman offers custom services to assist in integration of the OEM module into end user solution.
| Applications | Features | Benefits |
|---|---|---|
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Specifications
Vcc = 3V, over full bandwidth, T=25°C
| Antenna | |
|---|---|
| Architecture | Custom single-feed ceramic patch |
| Antenna Gain (70mm ground plane) | 4 dBic at 90° |
| Axial Ratio | 4 dB at 90°, 6dB at 20° |
| Electrical | |
|---|---|
| Architecture | Input >SAW filter >LNA |
| Frequency/Bandwidth | 1575.42 MHz +/- 10MHz |
| Polarization | RHCP |
| Gain | 15 dB min. (at 1575.42 MHz) |
| Out-of-Band Rejection <1560 MHz >1600 MHz >1620 MHz |
>25 dB >30 dB >35 dB |
| VSWR (at LNA input) | <1.5:1 |
| Noise Figure | 1 dB typ. |
| Supply Voltage Range | 2.7VDC to 3.3VDC |
| Supply Current | 5 mA typ. |
| ESD Circuit Protection | 15 KV air discharge |
| Mechanicals & Environmental | |
|---|---|
| Mechanical Size | 35 mm dia. x 7.5mm |
| Connectors | Optional |
| Cable | 1.48mm OD, 15 cm. Custom lengths optional |
| Operating Temp. Range | -40 to +85 °C |
| Weight | 50 g |
| Attachment Method | Adhesive or screw mount |
| Environmental | RoHS compliant |
| Shock | Vertical axis: 50 G, other axes: 30 G |
| Vibration | 3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G |
| Warranty | One year, parts and labour |
| Ordering Information | |
|---|---|
| TW1017 – GPS L1 antenna | 32-1015-x-yyyy (x= Connector type, yyyy = cable length in mm) |
TW1017 Datasheet
The information provided herein is intended as a guide only and is subject to change without notice. This document is not to be regarded as a guarantee of performance. Tallysman Wireless Inc. hereby disclaims any or all warranties and liabilities of any kind. © 2010 Tallysman Wireless Inc. All rights reserved.