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33.4422-XX-YYYY

更新时间：2025-07-09 22:19:02

品牌：TALLYSMAN

描述：TW4421/TW4422 Wideband Dual Feed GPS/GLONASS Antenna

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33.4422-XX-YYYY 概述

TW4421/TW4422 Wideband Dual Feed GPS/GLONASS Antenna

33.4422-XX-YYYY 数据手册

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A Tallysman Accutenna^®

TW4421/TW4422 Wideband Dual Feed GPS/GLONASS Antenna

The TW4421/TW4422 employs Tallysman’s

patented

Accutenna^®technology covering the GPS L1, GLONASS G1, and

SBAS (WAAS, EGNOS & MSAS) frequency band (1574 to 1606

MHz). The TW4421/TW4422 features a novel 25mm dual feed

wideband patch element that provides a more linear carrier

phase response by virtue of the axial ratio that is greatly

improved across the full frequency bandwidth. It provides truly

circular response over its entire bandwidth thereby producing

superior multipath signal rejection. It is especially suitable for

high accuracy applications while providing high out of band

signal rejection.

The two feeds from the patch element are summed in a 90°

Hybrid then input to a first stage Low Noise Amplifier (LNA),

followed by a mid-section SAW and a second low noise gain stage.

The TW4422 has a pre-filter which increases the antenna’s

immunity to high amplitude interfering signals, such as LTE and

other cellular signals

The TW4421/TW4422 is the smallest dual feed, high

performance antenna available. It is housed in a compact IP67

magnetic or adhesive mount enclosure. It is available with a wide

range of cable and connector options.

The antenna can be ordered without the magnet. In such cases,

the magnet is replaced with a plastic plug to provide a smooth

under surface, with the option of ordering it with or without 1.1

mm doublesided VHB tape on the bottom.

Applications

•

Cost Sensitive Mission Critical Positioning

Military & Security

Covert surveillance

Fleet Management & Asset Tracking

Features

Benefits

•

Dual feed patch element

•

1dB Bandwidth Includes GPS-L1 & GLONASS

Axial ratio: 2.5 dB Max. (GPS & GLONASS)

Low noise LNA: 1 dB

High rejection mid-section SAW filter

High gain: 26 dB typ.

Wide voltage input range: 2.5 to 16 VDC

IP67 weather proof housing

Low Power: 9mA typ. at 2.3Vcc min.

Greatly enhanced multipath rejection

Improved GNSS reliability

Excellent signal to noise ratio

RoHS compliant

Ideal for harsh environments

Excellent out of band signal rejection

TW4421/TW4422 Wideband Dual Feed GPS/GLONASS Antenna

Specifications At; Vcc = 3V, over full bandwidth, T=25°C

Antenna

Architecture

Wideband Dual Feed Patch Element

1 dB radiated power bandwidth (RHCP)

Antenna Gain (with 100mm ground plane)

Axial Ratio over full bandwidth,

Polarization

32 MHz

4.5 dBic

<1.5 dB @zenith, ≤2.5dB max

RHCP

Electrical

Architecture

Filtered LNA Frequency Bandwidth

Gain

Dual Feed Patch -> Hybrid->LNA stage 1 -> SAW filter-> LNA stage 2

1575 to 1606 MHz

TW4421: 26dB -2/+1, TW4422: 26dB -2/+1

Gain flatness

+/- 2dB, 1575 MHz to 1606MHz

TW4421

>32dB

>25dB

>60dB

TW4422

>60dB

>55dB

>65dB

Out-of-Band Rejection

<1500MHz:

<1550MHz:

>1640MHz:

VSWR (at LNA output)

Noise Figure

<1.5:1 typ. 1.8:1 max.

1.0dB typ.

Supply Voltage Range (over coaxial cable)

Supply Current

+2.5VDC to 16VDC nominal (12VDC recommended maximum)

10mA typ. 15mA max. (@ 85°C)

ESD Circuit Protection

15KV air discharge

Mechanicals & Environmental

Mechanical Size

Cable

38mm x 38mm dia. x 14.3mm High

RG174

Operating Temp. Range

Enclosure

Weight

Attachment Method

Environmental

Shock

-40°C to +85°C

Radome and base: EXL9330

50gm (Enclosure + SMA connector 34gm, cable 0.31gm/cm)

Magnetic or Adhesive

IP67 and RoHS compliant

Vertical axis: 50G, other axes: 30G

3 axis, sweep = 15 min, 10 to 200Hz sweep: 3G

One year, parts and labour

Vibration

Warranty

Ordering Information

TW4421 – Wideband GPS Antenna

TW4422 – Pre-Filtered Wideband GPS Antenna

33-4421-xx-yyyy

33.4422-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 radomes and connectors.

Tallysman Wireless Inc

36 Steacie Drive

Ottawa ON K2K 2A9 Canada

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

Rev 5.1

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