The invention discloses a cross dipole broadband antenna, which belongs to the field of wireless communication, has a dual-polarization characteristic and can support two mutually vertical polarization directions at the same time, and the high isolation and the optimized design of the dual-polarization antenna reduce signal attenuation and loss and ensure the reliability and the stability of a communication system. Moreover, the antenna is provided with a balun structure which can effectively cut off the high-frequency current flowing through the sheath of the cable shielding layer from the cross dipole patch, thereby ensuring the correct transmission of signals and good antenna performance. The Balun structure can realize the conversion between different impedances, so that the impedance between the antenna and the transmission line is matched, and the maximum power transmission is ensured; besides, the patch of the antenna adopts a novel fractal structure, namely a quartering circular fractal structure, so that the antenna performance is improved, the broadband characteristic is maintained while the light weight is realized, the frequency bandwidth is improved, and the radiation efficiency is optimized.

    本发明公开了一种交叉偶极子宽带天线,属于无线通信领域,该天线具有双极化特性,能够同时支持两个相互垂直的极化方向,双极化天线的高隔离度和优化的设计减少了信号衰减和损失,确保了通信系统的可靠性和稳定性;并且,该天线具有巴伦结构,其能够有效地把从交叉偶极子贴片流过电缆屏蔽层外皮的高频电流截断,确保信号的正确传输和良好的天线性能;巴伦结构能够实现不同阻抗之间的转换,使得天线与传输线之间的阻抗达到匹配,从而确保最大功率传输;此外,该天线的贴片采用一种新型分形结构,即四等分圆分形结构,有利于提高天线性能,实现轻量化的同时维持宽频带特性、提高频带宽度、优化辐射效率。


    Access

    Download


    Export, share and cite



    Title :

    Cross dipole broadband antenna


    Additional title:

    一种交叉偶极子宽带天线


    Contributors:
    ZHONG YI (author) / ZHENG YI (author) / FU YONGJIE (author)

    Publication date :

    2024-12-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01Q Antennen , ANTENNAS, i.e. RADIO AERIALS / B64C AEROPLANES , Flugzeuge



    Broadband Dipole Antenna on Electromagnetic Bandgap Ground Planes

    Akhoondzadeh-Asl, L. / Hall, P. S. / European Space Agency | British Library Conference Proceedings | 2006


    A kind of dipole antenna with broadband characteristics

    LU, S. / YANG, X. / JIA, X. et al. | British Library Online Contents | 2000


    Design and Analysis of Cross Cage Dipole Antenna

    Ahmad, M / Ahmed, M / Shah, I | IEEE | 2006


    Log-Periodic Dipole Antenna with Low Cross-Polarization

    Pivnenko, S. / European Space Agency | British Library Conference Proceedings | 2006