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    Short Message Antenna

    TDXL-HC4212 multiple BDS POSITIONING TERMINAL ANTENNA
    创始人2025-01-11

    TDXL-HC4212 is a composite spiral antenna designed for high-precision positioning. The antenna features a nested combination design for receiving satellite signals from BDS B3I, B2b, B1C, B1I, and S-band. The BDS antenna utilizes a multi-arm spiral structure, offering high antenna unit gain, wide beam pattern, and excellent high and low elevation angle performance. Additionally, the product integrates a WiFi communication band antenna within the antenna. This product is an ideal integrated antenna for light measurement, UAVs, handheld terminals, and other BDS multi-system field equipment.

    1、The antenna adopts symmetrical multi-arm spiral design to minimize the impact of the precision error and ensure the phase center stability.

    2、Independent RF circuit with pre-filter design for the B1I, B1C band result in superior out-of-band interference rejection.

    3、Particularly, it reduces electromagnetic saturation interference during short message transmissions effectively, thereby enhancing the reliability of BDS positioning.

    4、The lightweight construction makes it an ideal choice for integration into UAV, surveying, and monitoring equipment.

    5、Integrated WiFi antenna and the high-position integrated design streamlined the antenna requirements for terminal devices and reduces design costs.


    Signal reception

    BDS：B3I、B2b、B1C、B1I、S

    WiFi：2.4G~2.5G

    Output impedance

    50Ω

    Polarization

    Linear polarization（WiFi）

    Highest gain(max)

    ≥2.0dBi（BDS）

    ≥0.5dBi（WiFi）

    Axial ratio

    ≤3.0dB（BDS）

    Elevation coverage

    360°

    Output V.S.W.R.

    ≤2.0

    LNA index

    Exclusively for BDS antennas

    Gain

    32±2dB

    Noise figure

    ≤2.0dB

    Output voltage V.S.W.R.

    ≤2.0

    Flatness in band

    ±2dB

    Operating voltage

    ﹢3V~﹢12V

    Operating current

    ≤65mA & 3.3V

    Mechanical characteristics

     

    Connecting type

    IPEX I（customizable）

    Mounting type

    Through-hole Locking Screws

    Dimension

    D 54.0±1.0mm H 30.8±1.0mm （see the attached figure）

    Weight

    ≤35g

    Operating environment

     

    Operating temperature

    -40℃~﹢70℃

    Storage temperature

    -55℃~﹢70℃

    Humidity

    95% non-condensing

    Related models：TDXL-HC4212
    Dimension：
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