產品明細

TW3972

三頻GNSS天線+L波段

    產品簡述
    ♦ 超低雜訊前置放大器：典型值 < 2.5dB
    ♦ 低軸比：< 2dB（典型值）
    ♦ 緊密相位中心變化（PCV）
    ♦ 高增益低雜訊放大器增益（典型值 37 dB）
    ♦ 低電流：典型值 24 mA
    ♦ ESD電路保護（15 kV）
    ♦ 在 2.5 至 16 VDC 電壓範圍內性能保持不變
    ♦ 符合 IP69K、REACH、RoHS 和 S-9401.V1.0 標準
    ♦ 符合 EN45545-2、EN50121、EN50155 和 EN61373 標準

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      產品詳細介紹Product Introduction

      TW3972 Triple Band GNSS Antenna with L-Band


      The TW3972 is a precision-tuned triple-band Accutenna® technology antenna providing triple-band GPS/QZSS-L1/L2/L5, GLONASSG1/G2/G3, Galileo-E1/E5a/E5b, BeiDou-B1/B2/B2a, NavIC-L5, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], plus L-band Corrections coverage, and is especially designed for precision triple-frequency positioning.

      Ideal for train control sensors, autonomous vehicle tracking and guidance, precision agriculture, and other applications where precision matters, The TW3972 provides superior multipath signal rejection, a linear phase response, and tight phase centre variation (PCV).

      The TW3972 features a precision-tuned, twin circular dual-feed, stacked patch element. The signals from the two orthogonal feeds are combined in a hybrid combiner, amplified in a wideband LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output. The antenna also has a strong pre-filter to mitigate intermodulated signal interference from LTE and other cellular bands. The TW3972 offers excellent axial ratio and a tightly grouped phase centre variation.

      The TW3972 meets all requirements of the Association of American Railroads (AAR)’s Electronics Environmental Requirements and System Management Standard (S-9401.V1.0). In addition, it is also compliant with the EN45545-2, EN50121, EN50155, and EN61373 standards.

      The TW3972 is housed in a through-hole mount, weatherproof enclosure for permanent installations. L-bracket (PN 23-0040-0) or pipe mount (230065-0) are available. A 100-mm ground plane is provided with the antenna, which ensures optimal performance. This antenna is also available in an OEM format: TW3967 (28 dB) and TW3972E (37 dB).


      Coverage:

      • Very low noise preampp < 2.5 dB
      • Low axial ratio: ≤ 2.0 dB typ.
      • Tight phase centre variation
      • High-gain LNA: (37 dB typ.)
      • Low current: 24 mA typ.
      • ESD circuit protection (15 kV)
      • Invariant performance from 2.5 to 16 VDC
       

      Applications:

      • Autonomous vehicle tracking and guidance
      • Positive Train Control (PTC)
      • Positive Train Location (PTL)
      • Precision GNSS position
      • Precision agriculture
      • Triple-frequency RTK and PPP receivers
      • Law enforcement and public safety
      • Automotive Positioning (Supports ADAS)
       

      Antenna:- Measured with a 100 mm ground plane

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