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TW4421 Wideband Dual Feed GPS/GLONASS Antenna  紧凑型天线、价廉物美

The TW4421 employ Tallysman’s unique Accutenna™ technology covering the GPS L1, GLONASS G1, and SBAS (WAAS, EGNOS & MSAS) frequency bands (1574 to 1606 MHz). It provides truly circular response over its entire bandwidth thereby producing superior multipath signal rejection resulting in higher accuracy of position and timing.

TW4421支持GPSL1、GlonassG1天线，28dB增益、仅仅50克重。

Features

TW4421 GPS L1, GLONASS G1, and SBAS antenna
  • Accutenna™ Technology
  • Tight phase centre variation
  • 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 TW4421 is housed in a compact, magnetic or adhesive mount, IP67 compliant housings. 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.

Specifications

Antenna
Architecture                                                 Wideband Dual Feed Patch Element
1 dB radiated power bandwidth (RHCP)          32 MHz
Antenna Gain (with 100mm ground plane)       4.5 dBic
Axial Ratio over full bandwidth,                      <1.5 dB @zenith, ≤2.5dB max
Polarization                                                  RHCP 

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:

28 dB

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 over full bandwidth:

<1.5 dB @zenith, ≤2.5dB max

For further details, please download the Datasheet.

Drawing

TW4421 GPS L1, GLONASS G1, and SBAS紧凑型天线

 

Download： TW4421_Datasheet_Rev3_4.pdf

 

 

 

 

 

 

 

 

 

Performance

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

TW4421 Measurements