GNSS Products

Documents

pdf Antenna Product Overview

pdf Comparing GNSS Antenna Performance

pdf White Paper – GNSS Antennas

pdf GNSS Antenna Presentation

pdf TW3072 Timing Antenna Install

pdf4000 Series White Paper – New Challenges for GNSS Patch Antennas

pdfTallysman TW4000 Series White Paper

pdfPatch Antennas for the New GNSS (GPS World Article Feb /12)

STMicroelectronics GPS + GLONASS Simulation

Multi-constellation GNSS

Download TW3370/TW3372 Datasheet

TW3370/TW3372 40dB Wideband GPS/GLONASS Antenna

The TW3370/TW3372 is a high Gain (40dB) 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 received power bandwidth.

The TW3370/TW3372 has a three stage Low Noise Amplifier with a mid-section SAW. A tight pre-filter is available with the TW3372 to protect against saturation by high level sub- harmonics and L-Band signals making it particularly suitable for timing applications.

The TW3370/TW3372 has a 19mm (3/4 Inch) though hole, permanent mount white-metal base, with an industrial-grade, IP67 compliant conical radome. The standard connector is a TNC Jack (female). An L-bracket for pole mount is available.

Applications Features Benefits
  • Timing applications
  • Fixed installations
  • Cost Sensitive Mission Critical Positioning
  • 40dB LNA Gain
  • 1 dB LNA Noise Figure (TW3370)
  • Available Pre-filter (TW3372)
  • Wide voltage input range: 2.5 to 10 VDC
  • IP67 Compliant conical radome
  • Low Power: 9mA typ. at 2.3Vcc min.
  • Bandwidth fully Includes GPS-L1 & GLONASS
  • Excellent multipath rejection
  • Increased system accuracy
  • Excellent signal to noise ratio
  • Great out of band signal rejection
  • Ideal for harsh environments
  • RoHS compliant

Specifications

Antenna
Architecture Wideband Single Feed Patch
1 dB Bandwidth 31 MHz
10dB Return Loss Bandwidth 45 MHz
Antenna Element Gain (100mm ground plane) 4.5 dBic
Axial Ratio <4dB @ 1590MHz, 8 dB typical at band-edges
Electrical
Architecture TW3370: LNA stage 1 -> SAW filter-> LNA stage 2
TW3372: SAW Pre-filter ->LNA stage 1 -> SAW filter-> LNA stage 2
Filtered LNA Frequency Bandwidth 1574 to 1606 MHz
Polarization RHCP
Gain TW3370 : 41 dB min.
TW3372: 40dB min.
Gain flatness +/- 2 dB, 1575 to 1605 MHz
Out-of-Band Rejection
<1500 MHz
<1550 MHz
>1640 MHz		 >35 dB
>25 dB
>35 dB
VSWR (at LNA output) <1.5:1
Noise Figure TW3370: 1dB typ.
TW3372: 2.5 dB typ.
Supply Voltage Range (over coaxial cable) 2.5 to 10VDC nominal
Supply Current 15 mA max.
ESD Circuit Protection 15 KV air discharge
Mechanicals & Environmental
Mechanical Size 66.5 mm dia. x 21 mm H
Connectors TNC Jack (female)
Cable (Option) Custom flying cable assembly available.
Operating Temp. Range -40 to +85 °C
Enclosure Radome: ASA Plastic, Base: Zamak White Metal
Weight 150 g
Attachment Method Fixed-Mount
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
TW3370 – GPS/Glonass Antenna TNC Connector 32-3370-xx-yy
TW3372 – GPS/Glonass Antenna TNC Connector 32-3372-xx-yy
Download TW3370/TW3372 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. © 2012 Tallysman Wireless Inc. All rights reserved.