TW4320 TALLYSMAN | Alldatasheet

Document overview

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Technical content

Features

  • 40% wider bandwidth, small footprint
  • Axial ratio: 6 dB Typ. (GPS & GLONASS)
  • Low noise LNA: 1 dB
  • High rejection mid-section SAW filter
  • Available Pre-filter (TW4322)
  • High gain: 28 dB typ.
  • Wide voltage input range: 2.5 to 16 VDC
  • IP67 weather proof housing
  • Low Power: 9mA typ. at 2.3Vcc min. Benefits
  • 1dB Bandwidth Includes GPS-L1 & GLONASS
  • Excellent multipath rejection
  • improved GNSS reliability
  • Excellent signal to noise ratio
  • RoHS compliant
  • Ideal for harsh environments
  • Excellent out of band signal rejection The TW4320/TW4322 is a wideband GNSS antenna covering the GPS L1 , GLONASS L1 and SBAS (WAAS, EGNOS & MSAS) frequency bands (1575 to 1606 MHz). It features a small patch element with 4 0% wider bandwidth than previously available in this format. Unlike its competitors, both GPS-L1 and GLONASS signals are included in the 1dB received power bandwidth. The TW4320 /TW4322 has a two stage Low Noise Amplifier with a mid -section SAW . A tight pre -filter is available in the TW4322 to protect against saturation by high level sub- harmonics and L-Band signals. Even wit h the wider bandwidth, the TW4320/TW4322 antenna is the smallest high performance antennas available. It is housed in a compact IP67 magnetic mount enclosure.

TW4320/TW4322 Wideband GPS/GLONASS Antenna Specifications Antenna Architecture Wideband Single Feed Patch 1 dB radiated power bandwidth 31 MHz 10dB Return Loss Bandwidth 45MHz Antenna Gain (with 100mm ground plane) 4.5 dBic Axial Ratio (over full bandwidth) 6 dB typical, 8dB Maximum. Polarization RHCP Electrical Architecture LNA stage 1 -> SAW filter-> LNA stage 2 (TW4320) SAW Pre-filter ->LNA stage 1 -> SAW filter-> LNA stage 2 (TW4322) Filtered LNA Frequency Bandwidth 1574 to 1606 MHz Gain 28dB min., 1575.42 to 1606 MHz Gain flatness +/- 2 dB, 1575 to 1606 MHz Out-of-Band Rejection Out-of-Band Rejection <1500 MHz >32 dB (TW4320) >50dB (TW4322) <1550 MHz >25 dB >50dB >1640 MHz >35 dB >70dB VSWR (at LNA output) <1.5:1 typ. 1.8:1 max. Noise Figure 1 dB typ.(TW4320); 3.5 dB typ. (TW4322) Supply Voltage Range (over coaxial cable) +2.5 to 16 VDC nominal Supply Current 12 mA max. ESD Circuit Protection 15 KV air discharge Mechanicals & Environmental Mechanical Size 38mm x 38mm dia. x 14.3mm H Cable RG174 Operating Temp. Range -40 °C to +85 °C Enclosure Radome and base: EXL9330 Weight 50 gm (Enclosure + SMA connector 34gm, cable 0.31gm/cm) Environmental IP67 and 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

TW4320 – Wideband GPS Antenna 33-4320-xx-yyyy TW4322 – Prefiltered Wideband GPS Antenna 33-4320-xx-yyyy Where xx = connector type and yyyy = cable length in mm Please refer to the Ordering Guide (http://www.tallysman.com/orderingguide.php) for the current and complete list of available radomes and 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. © 2010 Tallysman Wireless Inc. All rights reserved. Rev 2.3