TW1421 Dual Feed Embedded GPS/GLONASS Antenna

TW1421 Dual Feed Embedded GPS/GLONASS Antenna

Model No.︰TW1421

Brand Name︰Tallysman

Country of Origin︰Canada

Unit Price︰CNY ¥ 1 / pc

Minimum Order︰100 pc

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Product Description

TW1421 Dual Feed Embedded GPS/GLONASS Antenna

The TW1421 by Tallysman Wireless is an OEM dual feed GPS & GLONASS antenna covering the GPS L1, GLONASS G1 and SBAS (WAAS, EGNOS & MSAS) frequency band (1574 to 1606 MHz). The dual feed architecture provides a low axial ratio, a very tight Phase Centre Variation (PCV), and is especially suitable for high accuracy applications, with excellent multipath rejection and a more linear carrier phase response. It also offers high out of band signal rejection.

The TW1421 features a novel 25mm wideband patch element with dual-feeds that are summed in a 90° Hybrid and input to a two stage Low Noise Amplifier (LNA),with a mid section SAW a second low noise gain stage. This configuration provides excellent axial ratio and cross-polarization rejection across the full frequency band.

The built-in 35mm circular ground plane should ideally be augmented with a local system ground plane or reflecting surface (DC connection not required).

There are two options: TW1421S which has a lower profile can, mico-coax cable, and a U.FL. connector; or TW1421T which has a taller can, RG174, and a choice of connectors.

OEM antennas are easily detuned by the local environment. Tallysman offers custom tuning services for optimized integration into OEM end-user modules.

Applications

Features

Benefits

High Accuracy GPS & GLONASS

UAV / UAS / Drones

Military & Security

Avionics

Law Enforcement & Public Safety

Fleet Management & Asset Tracking

Accutenna™ technology

Very tight Phase Centre Variation (PCV)

1dB bandwidth 1575-1606 MHz

Very low noise LNA: <1.25 dB

<2.5dB Axial Ratio over bandwidth

Wide Supply voltage: fixed 2.5V to 16V

ESD circuit protection: 15KV

Great multipath rejection

Increase system accuracy

Improved carrier phase linearity

Excellent signal to noise ratio

Great out of band signal rejection

Compact form factor

RoHS compliant

Reliable performance

Specifications

Vcc = 3V, over full bandwidth, T=25°C

Antenna

 

Architecture

Dual, Quadrature Feeds

1 dB Bandwidth

31MHz

Antenna Gain (with 100mm ground plane)

4.5d Bic

Axial Ratio over full bandwidth (horizon to horizon)

≤2.5dB max

 

Electrical

 

Architecture

One LNA per feed line, mid-section SAW filter

Filtered LNA Frequency Bandwidth

1574MHz to 1606MHz

Polarization

RHCP

LNA Gain

28dB typ., 26dB Min, 1575.42MHz to 1606MHz

Gain flatness

+/- 2dB, 1575MHz to 1606MHz

Out-of-Band Rejection
<1500 MHz
<1550 MHz
>1640 MHz


>32 dB
>25 dB
>35 dB

VSWR (at LNA output)

<1.5:1

Noise Figure

≤1.25dB typ.

Supply Voltage Range (over coaxial cable)

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

Supply Current

15mA typ, 25m Max (85°C)

ESD Circuit Protection

15 KV air discharge

 

Mechanicals & Environmental

 

Mechanical Size

35 mm dia. x 7.25mm

Cable

1.38mm OD (micro-coax) or 2.6mm OD (RG174)

Operating Temp. Range

-40 to +85 °C

Weight

30 g

Attachment Method

Adhesive or M2 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

Warranty

One year, parts and labour

 

Ordering Information

 

Legacy Product Numbers

 

TW1421T

OEM Dual Feed antenna, with 2.72 mm can – 32-1421T-xx –yyyy-zz

TW1421S

OEM Dual Feed antenna, with 2.0 mm can – 32-1421S-xx –yyyy-zz

Connector: xx

 

specifications︰ Antenna
Architecture Dual, Quadrature Feeds
1 dB Bandwidth 31MHz
Antenna Gain (with 100mm ground plane) 4.5d Bic
Axial Ratio over full bandwidth (horizon to horizon) ≤2.5dB max

Electrical
Architecture One LNA per feed line, mid-section SAW filter
Filtered LNA Frequency Bandwidth 1574MHz to 1606MHz
Polarization RHCP
LNA Gain 28dB typ., 26dB Min, 1575.42MHz to 1606MHz
Gain flatness +/- 2dB, 1575MHz to 1606MHz
Out-of-Band Rejection
<1500 MHz
<1550 MHz
>1640 MHz
>32 dB
>25 dB
>35 dB
VSWR (at LNA output) <1.5:1
Noise Figure ≤1.25dB typ.
Supply Voltage Range (over coaxial cable) +2.5VDC to 16VDC nominal (12VDC recommended maximum)
Supply Current 15mA typ, 25m Max (85°C)
ESD Circuit Protection 15 KV air discharge

Mechanicals & Environmental
Mechanical Size 35 mm dia. x 7.25mm
Cable 1.38mm OD (micro-coax) or 2.6mm OD (RG174)
Operating Temp. Range -40 to +85 °C
Weight 30 g
Attachment Method Adhesive or M2 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
Warranty One year, parts and labour

Advantages︰ Applications Features Benefits
High Accuracy GPS & GLONASS
UAV / UAS / Drones
Military & Security
Avionics
Law Enforcement & Public Safety
Fleet Management & Asset Tracking Accutenna™ technology
Very tight Phase Centre Variation (PCV)
1dB bandwidth 1575-1606 MHz
Very low noise LNA: <1.25 dB
<2.5dB Axial Ratio over bandwidth
Wide Supply voltage: fixed 2.5V to 16V
ESD circuit protection: 15KV Great multipath rejection
Increase system accuracy
Improved carrier phase linearity
Excellent signal to noise ratio
Great out of band signal rejection
Compact form factor
RoHS compliant
Reliable performance

Export Markets︰ UAV

Pricing︰ 1

Payment Details︰ T/T

Min Order︰ 100pcs

Ship Date︰ 4 WEEK

Standard Met︰ ISO

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