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    Short Message Antenna

    TDXL-BLS3005 BDS short message combined antenna
    创始人2025-01-08

    TDXL-BLS3005 is a built-in antenna designed for receiving BDS B1I, B1C, and S-band satellite signals, as well as transmitting BDS L-band signals. It is designed with an integrated structure to achieve miniaturization, while maintains high gain, wide directional beam, as well as exhibits excellent high and low elevation performance. For the B1I and B1C bands, an active design is adopted to reduce antenna output loss. The antenna with special craft makes it possible to resist extreme temperature fluctuation and corrosion, which can do outdoor work for a long time. It is widely applied in ship-borne, vehicle-mounted, handset and other other fields.

    1.The antenna part adopts symmetrical design to minimize the impact of the precision error and ensure the phase center stability.

    2.The unit features a dual-feed design, offering high gain, a wide directional beam, and excellent low-elevation signal reception, ensuring normal reception in special occasions where the signal is severely obscured.

    3.It is designed with an integrated structure to achieve miniaturization while increasing its thickness, thereby enhancing the gain.

    4. For the B1I and B1C bands, an active design is employed to reduce antenna output loss and improved antenna signal-to-noise ratio (SNR).

    5.Excellent circular polarization axial ratio and gain bandwidth.

    6、Compact size and easy to integrate.

    7、Can be flexible customized according to customer’s request.


    Signal support

    BDS: B1I、B1C、L、S

    Output impedance


    50 Ω

    Passive antenna performance


    B1 V.S.W.R.

    ≤2.0（B1I：1561.098±2.046MHz;

    B1C：1575.42±2.046MHz）

    B1 polarization gain

    （RHCP）

    ≥-1.0dBi(elevation angle 30°)

    ≥3dBi(elevation angle90°)

    L V.S.W.R.

    ≤2.0(1615.68±4.08MHz)


    L polarization gain

    （LHCP）

    ≥-0.5dBi(elevation angle30°)

    ≥2dBi(elevation angle70°)

    ≥4dBi(elevation angle90°)

    S V.S.W.R.

    ≤2.0 (2491.75±4.08MHz)


    S polarization gain

    （RHCP）


    ≥-2.5dBi(elevation angle30°)

    ≥2dBi(elevation angle70°)

    ≥3.5dBi(elevation angle90°)

    Isolation

    ≤-15dB(B1\S)

    ≤-15dB(B1\L)

    ≤-15dB(S\B1)

    ≤-15dB(S\L)

    ≤-15dB(L\B1)

    ≤-15dB(L\S)

    Axial ratio

    B1≤3.0

    S≤3.0

    L≤3.0

    Active antenna performance

    Active V.S.W.R.

    ≤2.0        

    Active gain

    35±2dB

    Active noise

    ≤2.0

    Flatness in band

    ±2dB

    Operating voltage

    3.0~12V DC

    Operating current

    ≤40mA

    Operating temperature

    －40℃～＋85℃

    Storage temperature

    －55℃～＋85℃

    Antenna physical characteristics

    Dimension

    ≤φ75*10.4 mm

    Weight

    ≤100g

    Output interface

    MCX (customizable)

    Humidity

    95% non-condensing

    Storage temperature

    －55℃～＋70℃

    Operating temperature

    －45℃～＋65℃

    Related models ：TDXL-BLS3005

    Dimension：
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