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    • 1. 发明公开
    • ANTENNA UNIT, ANTENNA, AND ANTENNA FEEDER SYSTEM
    • EP4425701A1
    • 2024-09-04
    • EP21965034.8
    • 2021-11-23
    • Huawei Technologies Co., Ltd.
    • WAN, ZhenxingDU, ZijingWANG, Xiaodong
    • H01Q1/12H01Q1/36
    • H01Q1/36H01Q1/12
    • This application relates to the field of antennas, and in particular, to an antenna unit, an antenna, and an antenna feeder system. The antenna unit includes a reflection element and two monopoles that are located on a same side of the reflection element and that are used as radiators. Horizontal sections of the two monopoles are crossed, and the two monopoles are fed through coupling. In addition, a coupling body is added near the monopoles. The coupling body includes a pair of coupling structures, and each coupling structure can be coupled to both a horizontal section and a vertical section of one monopole. The coupling structure and the vertical section of the monopole extend in a same direction, and the coupling structure and the horizontal section of the monopole extend in a reverse direction. The antenna unit can avoid deterioration of a pattern of another frequency band and increase isolation between systems. Through cooperation between the monopole and the coupling structure, a radiation field of the vertical section of the monopole is reduced, a radiation field of the horizontal section of the monopole is increased, and cross-polarization of the monopole is reduced, thereby improving electrical performance of a multi-band array antenna.