33-1722-00-1500

## TW1722 

## Multi-Constellation Antenna 

**Frequency Coverage:** GPS L1 | GALILEO E1 | BEIDOU B1 | GLONASS G1 

## Overview 

The TW1722 is a compact wideband GNSS antenna employing patented Accutenna® technology. This antenna provides accurate reception for all upper-Band GPS/QZSS-L1, GLONASSG1, Galileo-E1, and Beidou-B1 signals and associated augmentation signals (WAAS, EGNOS and MSAS). 

The TW1722 features a novel 25 mm dual-feed wideband patch element that, in sharp contrast with its competitors, provides a truly circularly polarized response, with a typical axial ratio of less than 2.0 dB over the full bandwidth. This provides a more linear carrier phase response, substantially improved multipath rejection, and tight phase centre variation (PCV), making the TW1722 ideal for applications that require high-precision positioning and timing in a small form factor. 

The TW1722 contains a pre-filter to protect against saturation by high-level sub-harmonic and out-of-band signals, such as LTE and Wi-Fi. It also features a two-stage low-noise amplifier (LNA) with a mid-section filter. The Accutenna® technology provides an excellent axial ratio that is constant across the supported bandwidth. 

The built-in 35 mm 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. Calian offers custom tuning services for optimized integration into OEM end-user modules. 

## Benefits 

## Applications 

## Features 

- High-accuracy GNSS positioning • Compact Dual-feed Patch Element 

      - Great multipath rejection 

   - Axial ratio: ≤ 2.0 dB typ. over the full bandwith 

- Precision agriculture, mining, and construction 

   - Increased system accuracy 

- Law enforcement and public safety 

- LNA gain (27 dB typ.) 

      - Improved carrier phase linearity 

   - Voltage input range: 2.5 to 16 VDC 

- Fleet management and asset tracking 

   - Excellent signal-to-noise ratio 

- ESD circuit protection (15 kV) 

   - Great out-of-band signal rejection 

- Avionics 

   - Compact form factor 

- Temperature-compensated gain 

- RoHS and REACH compliant 

- Reliable performance 

About Calian: With global headquarters and manufacturing in Ottawa, Canada, Calian is a leading manufacturer of highprecision antennas and components for Global Navigation Satellite System (GNSS) applications. Calian’s mission is to support the needs of a new generation of positioning systems by delivering unprecedented antenna precision at competitive prices. Learn more at www.calian.com 

Contact us: info@tallysman.com T: +1 613 591-3131 

38 

Revision: 

**Frequency Coverage:** GPS L1 | GALILEO E1 | BEIDOU B1 | GLONASS G1 

## Multi-Constellation Antenna 

Antenna - Measured with a 100 mm ground plane Technology Dual-feed RHCP ceramic patch 

|||||||Gain|Axial Ratio|
|---|---|---|---|---|---|---|---|
||||||dBic typ. at Zenith||dB at Zenith|
||GNSS|||||||
|||||L1||4.5|≤ 2.0|
||GPS / QZSS|||L2||-|-|
|||||L5||-|-|
|||||G1||4.0|≤ 2.0|
||GLONASS|||G2||-|-|
|||||G3||-|-|
|||||E1||4.5|≤ 2.0|
|||||E5A||-|-|
||Galileo|||||||
|||||E5B||-|-|
|||||E6||-|-|
|||||B1||4.5|≤ 2.0|
|||||B2||-|-|
||BeiDou|||||||
|||||B2a||-|-|
|||||B3||-|-|
||IRNSS / NavIC|||L5||-|-|
||QZSS|||L6||-|-|
||L-Band Services (1525 MHz - 1559 MHz)|||||-|-|
||Satellite Communications|||||||
||-<br>Iridium<br>-<br>Globalstar<br>-<br>-<br>~~EE~~<br>~~a~~|||||||
||Other|||||||
||Axial Ratio at 10°|-|||Efficiency||-|
||PC Variation|-||||||
|**Mechanicals**<br>~~———~~||||||||
||Size||35 mm (dia.) x 8.8 mm|35 mm (dia.) x 8.8 mm||||
||Weight||18 g|18 g||||
||Radome||-|||||
||Mount||Adhesive | 4⋅M2 screws|||M2 screws||
||Available Connectors||Refer to Ordering Guide|||||
||**Environmental**|||||||
||Operating Temperature||-40 °C to +85 °C||-40 °C to +85 °C|||
||Storage Temperature||-55 °C to +95 °C||-55 °C to +95 °C|||
||Vibration||MIL-STD-810D|||||
||Shock||Vertical axis: 50 G, other axes: 30 G|||||
||Salt Fog||-|||||
||IP Rating||-|||||
||Compliance||IPC-A-610, FCC, RED / CE Mark, RoHS, REACH|||||
||Warranty|||||||
||Parts and Labour||1-year standard warranty|||||



Low Noise Amplifier (LNA) - Measured at 3 V and 25 ° C 

Upper Band Lower Band Frequency Bandwith 1559 - 1606 MHz - Out-of-band Rejection > 50 dB @ < 1500 MHz > 50 dB @ < 1525 MHz - > 50 dB @ > 1640 MHz Architecture Pre-filtered Gain 27 dB typ., 24 dB min. Noise Figure 3.0 dB typ. VSWR < 1.5:1 typ., 1.8:1 max. Supply Voltage Range 2.5 to 16 VDC nominal, up to 50mV p-p ripple Supply Current 10 mA typ., 15 mA max. ESD Circuit Protection 15 kV air discharge P 1dB Output - Group Delay - PCO - Mechanical Diagram 

Ordering Information 

## Part Number 33-1722-xx-yyyy-zz Where xx = connector type;  yyyy= cable length (in mm); and zz = reserved for Calian's use 

Please refer to our Ordering Guide to review available radomes and connectors at: https://www.tallysman.com/resource/tallysman-ordering-guide/ 

> © 2023 Calian Inc. All rights reserved. Calian, the “Confidence. Engineered.” tag line and the Calain logo are trademarks or registered trademarks of Calian Inc. and/or its affiliates in Canada and certain other countries. All other trademarks mentioned in this document are the property of their respective owners. The information presented is subject to change without notice. Calian assumes no responsibility for any errors or omissions in this document. Calian hereby disclaims any or all warranties and liabilities of any kind. 

202404 

Revision: