在社交媒体上共享

TW4721 Wideband Dual Feed GPS/GLONASS/BeiDou/Galileo Antenna

兼容北斗、伽利略、格洛纳斯紧凑型天线，价廉物美

The TW4721 is a compact, wideband Accutenna™ technology GNSS antenna that provides accurate reception for all upper L- band GPS, GLONASS, Beidou, and Galileo signals (L1, G1, B1, B1 BOC, B1-2, E1) and associated augmentation signals (WAAS, EGNOS and MSAS SBAS). It provides truly circular response over its entire bandwidth thereby producing superior multipath signal rejection resulting in higher accuracy of position and time.

TW4721支持GPSL1、北斗B1、GlonassG1、Galileo E1，增益26dB、仅仅50克重。28dB增益版本为TW4821。

TW4721 GPS, GLONASS, Beidou, and Galileo signals (L1, G1, B1, B1 BOC, B12, E1) & SBAS antenna

Features

  • 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 TW4721 is housed in a compact, magnetic or adhesive mount, IP67 compliant housing. 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. A double sided tape can then be used to mount the antenna.

It is RoHS and REACH compliant.

For further details, please download the Datasheet.

Antenna

Architecture                                                  Wideband Dual Feed Patch Element

2 dB radiated power bandwidth (RHCP)           47 MHz

Antenna Gain (with 100mm ground plane)        4.5 dBic @ 1582.5MHz

Axial Ratio 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 or Adhesive

Environmental:

IP67, REACH, and RoHS compliant

Electrical:

LNA Gain:

26 dB min

Supply Current:

10mA typ. 15mA max. @ 85°C

Supply Voltage:

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

Noise:

1 dB typ.

Axial Ratio at Zenith over full bandwidth:

<2dB typ. ≤3dB max

 

For further details, please download the Datasheet.                      

Drawing

TW4721 GPS, GLONASS, Beidou, and Galileo signals (L1, G1, B1, B1 BOC, B12, E1) & SBAS antenna

Performance

The attached PDF contains graphical representation of the axial ratios, Phase Centre Variation (PCV) and gain patterns over elevation and rotation.

TW4721-Measurements.pdf

 

Download: TW4721_Datasheet_Rev1_3.pdf

 

TW4721 measurement