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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
TW1015 Compact Embedded GPS L1 Antenna
The TW1015 by Tallysman Wireless is a small, high performance, low profile, embedded GPS L1 antenna, specially designed for industrial, military, precision positioning and timing applications.
The TW1015 features a high performance custom tuned ceramic patch element, a very low noise amplifier (LNA) and a tight bandpass SAW filter. 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 TW2015 comes in a compact circular form factor with a built-in 50 mm diameter ground plane, and with a 15 cm RG174 cable.
The TW1015 LNA gain is optimised to capture the LNA noise figure for OEM applications.
The built-in 35mm circular ground plane can be augmented with host system ground surfaces.
Tallysman offers custom services to assist with 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 | LNA ->SAW filter or |
| 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 | |
|---|---|
| TW1015 – GPS L1 antenna | 32-1015-x -yyyy (X= Connector type, yyyy = cable length in mm) |
Download TW1015 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.