TW2406 TALLYSMAN | Alldatasheet
Document overview
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- PDF pages: 2
Technical content
Features
- Great axial ratio: ≤1dB typ. 2 dB max.
- Low noise LNA: 1 dB
- High rejection SAW filter
- High gain: 28 dB typ.
- Low current: 10 mA typ.
- ESD circuit protection: 15 KV
- Wide voltage input range: 2.5 to 16 VDC Benefits
- Excellent multipath signal rejection
- Increased system accuracy
- Excellent signal reception
- Great out of band signal rejection
- Compact form factor
- RoHS compliant The TW2406 / TW2408 is electronically identical to the TW2405 / TW2407. The TW2406 / TW2408 has a larger PCB with drilled holes for more secure mounting. The TW2406/TW2408 employs Tallysman’s unique Accutenna technology covering the GPS L1 , GLONASS L1 and SBAS (WAAS , EGNOS & MSAS) frequency band s (1574 to 1606 MHz). It is especially designed for precision industrial, agricultural and military OEM applications. It provides truly circular response over its entire bandwidth thereby producing superior multipath signal rejection. The TW2406/TW2408 features a dual -feed wideband patch element, with a two stage Low Noise Amplifier, comprised of one input LNA per feed, a mid section SAW to filter the combined output, and a final output gain stage. This configuration provides excellent axial ratio that is constant across the full frequency band. A tight pre-filter is available with part number TW2408 to protect against saturation by high level sub-harmonics and L-Band signals. The TW2406 /TW2408 comes in a c ompact circular form factor with a built-in 56 mm diameter ground plane.
TW2406/TW2408 Embedded GPS/GLONASS Antenna Specifications Vcc = 3V, over full bandwidth, T=25°C Antenna Architecture Dual, Quadrature Feeds 0.5 dB Bandwidth 31 MHz Antenna Gain (with 100mm ground plane) 4.25 dBic Axial Ratio ≤1dB typ. 2 dB max. Electrical Architecture One LNA per feed line, mid section SAW filter (TW2406) One SAW Filter & LNA per feed line, mid-section SAW filter (TW2408) Filtered LNA Frequency Bandwidth 1574 to 1606 MHz Polarization RHCP Gain 28 dB min., 1575.42 to 1606 MHz (TW2406) 25 dB min, 1575.42 to 1606 MHz (TW2408) Gain flatness +/- 2 dB, 1575 to 1605 MHz Out-of-Band Rejection <1500 MHz >32 dB (TW2406) >50dB (TW2408) <1550 MHz >25 dB (TW2406) >50 dB (TW2408) >1640 MHz >35 dB (TW2406) >70 dB (TW2408) VSWR (at LNA output) <1.5:1 typ. 1.8:1 max. Noise Figure 1 dB typ.(TW2406) <3.5 dB typ. (TW2408) Supply Voltage Range (over coaxial cable) +2.5 to 16 VDC nominal (12 VDC recommended maximum) Supply Current 15 mA typ, 25mA Q max (85°C). ESD Circuit protection 15 KV air discharge Mechanicals & Environmental Mechanical Size 56 mm dia. x 7.8 mm H Cable RG174 Operating Temp. Range -40 to +85°C Weight 38 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
Ordering Information
TW2406: 33-2406-xx-yyyy-zz TW2408: 33-2408-xx-yyyy-zz Where xx = type of connector yyyy = cable length in mm and zz = reserved for Tallysman’s use 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 an d liabilities of any kind. © 20 11 Tallysman Wireless Inc. All rights reserved. Rev 1.3