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TW4821  BeiDou B1, GPS L1, Galileo E1 and SBAS antenna

The TW4821 employs Tallysman’s unique Accutenna™ technology in a compact magnetic mount antenna covering the BeiDou B1, GPS L1, Galileo E1 and SBAS (WAAS, EGNOS, QZSS & MSAS) frequency band (1557 to 1593 MHz). It provides truly circular response over its entire bandwidth thereby producing superior multipath signal rejection.

TW4821支持北斗B1、GPSL1、GlonassG1、GalileoE1天线，36dB增益、仅仅50克重。

Features

TW4821 BeiDou B1, GPS L1, Galileo E1 and SBAS antenna
  • Accutenna™ Technology
  • High rejection SAW filter
  • Low noise LNA: 1dB
  • Temperature compensating LNAs

Benefits

  • Superior multipath signal rejection
  • Great out-of-band signal rejection
  • Excellent signal-to-noise ratio
  • Consistent response in all operating temperatures

The TW4821 is housed in a compact, magnetic mount, IP67 compliant housings. It is RoHS and REACH compliant.

For further details, please download the Datasheet.

Antenna
Architecture                                                       Wideband Dual Feed Patch Element 

1.5 dB radiated power bandwidth (RHCP)              36 MHz
Antenna Gain (with 100mm ground plane)             4.5 dBic
Axial Ratio over Bandwidth (over full bandwidth)    <2dB typ. 3dB max.
Polarization RHCP

Specifications

Mechanical:

Architecture:

Dual, quadrature feeds

Size:

38mm x 38mm dia. x 14.3mm H

Weight:

50g

Enclosure:

Radome and Base: ASA Plastic

Attachment Method:

Magnetic

Environmental:

IP67, REACH, and RoHS compliant

Electrical:

LNA Gain:

28dB typ, 26 dB min.

Supply Current:

10mA typ. 15mA max. @ 85°C

Supply Voltage:

2.5 to 16 VDC nominal (12VDC recommended max.)

Noise:

1 dB typ.

Axial Ratio:

<2dB typ. 3dB max

 

For further details, please download the Datasheet.

Drawings

TW4821/TW4421 drawing

                    Download  TW4821_Datasheet_Rev21.pdf