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    KGR4B1 4-element anti-jamming array antenna
    创始人2025-01-13

    TDXL-KGR4B1 is a 4-element anti-jamming satellite array antenna designed for supporting BDS B1I and B1C bands. It through the rational layout of four antenna elements, it effectively suppresses low elevation angle signals, thereby achieving multipath resistance. The antenna has excellent circular polarization characteristics and high consistency between elements. The array synthesis results in high top gain and a high roll-off factor, offering the antenna excellent multipath interference resistance capabilities. The single antenna gain with special craft makes it possible to resist extreme temperature fluctuation, corrosion, and UV rays. It can be widely applied in UAV, shipborne, ship-mounted, vehicle-mounted and other various fields.

    1、The antenna's anti-jamming units are symmetrically designed, ensuring consistent gain for each unit;

    2、It features a high degree of isolation between unit ports;

    3、Excellent top reception gain and roll-off characteristics;

    4、It can be flexibly customized in terms of operating frequency, size, and structure according to customer’s requirements.

    Signal support

    BDS:B1I、B1C；

    Frequency range

    B1I:1561.098MHz±2.041MHz

    B1C:1575.42MHz±2.04210MHz

    Passive index

    Impedance matching

    50Ω

    Polarization

    RHCP

    Maximum gain of a single antenna

    ≥2.0dBi

    Axial ratio of a single antenna (zenith)

    ≤2dB

    Maximum gain of the array

    ≥5.0dBi

    Axial ratio of the array (zenith)

    ≤2dB

    Array axial plane coverage

    ±50°

    Array elevation coverage

    360°

    Low elevation suppression（30°~-15°）

    ≤-5dBi

    Low elevation suppression（15°~-0°）

    ≤-10dBi

    Low elevation suppression（0°~-90°）

    ≤-15dBi

    Anti-jamming unit antenna isolation

    ≥15dB

    Active index

    Operating voltage

    3.0~12V DC

    Operating current

    ≤35mA

    LNA gain

    36±2dB

    Noise figure

    ≤1.5dB

    Output V.S.W.R.

    ≤2

    Flatness in band

    ±2dB

    Dimension and reliability index

    Dimension

    ≤φ200*9 mm

    Weight

    300g

    Output interface

    SMA-K (cable length:15cm)

    Humidity

    95% non-condensing

    Storage temperature

    －45℃～＋85℃

    Operating temperature

    －40℃～＋80℃

    Related models：TDXL-KGR4B1

    Dimension：
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