TW1320 TALLYSMAN | Alldatasheet
Document overview
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- PDF pages: 2
Technical content
Features
- 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 Benefits
- Great multipath rejection
- Increase system accuracy
- Excellent signal to noise ratio
- Great out of band signal rejection
- Compact form factor
- RoHS compliant 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 TW1 322 to protect against saturation by high level sub-harmonics and L-Band signals. 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. TW1320 Dimensions (mm)
TW1320/TW1322 Embedded GPS/GLONASS Antenna Specifications At; Vcc = 3V, over full bandwidth, T=25°C Antenna Architecture Wideband Single Feed Patch Polarization RHCP 1 dB Bandwidth 31MHz 10dB Return Loss Bandwidth 45Hz Antenna Gain (with 100mm ground plane) 4.5dBic Axial Ratio <=4dB @ 1590MHz, 8dB typical at band edges Electrical Architecture TW1320 LNA stage 1 -> SAW filter-> LNA stage 2 TW1322 SAW Prefilter ->LNA stage 1 -> SAW filter-> LNA stage 2 Filtered LNA Frequency Bandwidth 1574MHz to 1606MHz Gain (1575.42 to 1606 MHz) 28dB min., TW1320; 26dB min, TW1322, Gain flatness +/- 2dB, 1575MHz to 1606MHz Out-of-Band Rejection TW1320: <1500MHz >35dB. TW1322: >70dB. TW1320: <1550MHz >25dB. TW1322: >45dB. TW1320: >1650MHz >35dB. TW1322: >70dB. VSWR (at LNA output) <1.5:1 typ. 1.8:1 max. Noise Figure TW1320:1 dB typ. TW1322: 3.5dB typ. Supply Voltage Range (over coaxial cable) +2.5VDC to 16VDC nominal (12 VDC recommended max) Supply Current 9mA typ.. ESD Circuit Protection 15KV air discharge Mechanicals & Environmental Mechanical Size 35mm dia. x 7.25mm Cable 1.38mm OD, Operating Temp. Range -40°C to +85°C Weight 50g Attachment Method Adhesive or screw mount Environmental RoHS compliant Shock Vertical axis: 50G, other axes: 30G Vibration 3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G Warranty One year – parts and labour
Ordering Information
TW1320 – GPS L1 antenna, 33-1320-xx-yyyy TW13222 –GPS L1 antenna w/pre-filter 33-1322-xx-yyyy Where xx = connector type and yyyy = cable length in mm Please refer to the Ordering Guide (http://www.tallysman.com/wp-content/uploads/Current-Ordering-Guide.pdf) for the current and complete list of available connectors. Tallysman Wireless Inc
36 Steacie Drive
Tel +1 613 591 3131 Fax 613 591 3121 sales@tallysman.com 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. © 20 11 Tallysman Wireless Inc. All rights reserved. Rev 1.7