產品明細

TW7976

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 32 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和RoHS 標準


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      產品詳細介紹Product Introduction

      TW7976 Triple Band GNSS Antenna with L-Band

      The TW7976 is a precision-tuned Accutenna® technology antenna designed for precision positioning, covering the GPS/QZSS-L1/L2, QZSS-L6, GLONASS-G1/G2, Galileo-E1/E6, and BeiDou-B1/B3 frequency bands, including the satellitebased augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], as well as L-Band correction services.

      This antenna is ideal for Real-Time Kinematic (RTK) and Precise Point Positioning (PPP) applications, as well as precision agriculture, autonomous vehicle tracking and guidance, and other applications where precision matters.

      The TW7976 features a dual-feed circular stacked patch element. The signals from the two orthogonal feeds are summed in quadrature, pre-filtered in a low loss filter to protect against a wide range of potentially interfering signals, amplified in high linearity, wideband LNA, then band-split, tightly filtered and amplified prior to signal recombination at the output.

      This antenna provides superior multipath rejection and axial ratio, a linear phase response, and tight phase centre variation (PCV), while protecting against intermodulation and saturation caused by high-level LTE 700 MHz signals.  

      The TW7976 is housed in an IP67 weatherproof enclosure that supports direct screw, magnet, or adhesive tape attachment. A 100 mm diamter ground plane is recommended for optimal antenna performance. 


      Coverage:

      Features:

      • Very low noise preampp < 2.5 dB
      • Low axial ratio: ≤ 2.0 dB typ.
      • Tight phase centre variation
      • High-gain LNA: (32 dB typ.)
      • Low current: 24 mA typ.
      • ESD circuit protection (15 kV)
      • Invariant performance from 2.5 to 16 VDC
      • P67, REACH, and RoHS compliant
       

      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

       

      Antenna:- Measured with a 100 mm ground plane

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