Double-polarization shaped wave beam base station antenna

The utility model relates to a dual polarization beam forming base station antenna comprising a plurality of radiating elements (1), (2), (3), (4), (5) and (6), a reflecting plate (8) and two independent coaxial feeding networks (10). Each radiating element is axially fixed on the reflecting plate (...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YING LIU, ANTAO BU, ZONGZHEN SHEN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The utility model relates to a dual polarization beam forming base station antenna comprising a plurality of radiating elements (1), (2), (3), (4), (5) and (6), a reflecting plate (8) and two independent coaxial feeding networks (10). Each radiating element is axially fixed on the reflecting plate (8) with different spacing distances and the amplitude of excitation of each radiating element are the same. The phases of excitation are set with three different groups. The two feed networks respectively divide the two input coaxial lines into three branches, and then each branch is divided into two paths, at last each path is divided into two branch paths to be respectively connected with the corresponding parallel oscillators a, b and c, d in each radiating element. In each frequency point within the working frequencies from 890 MHz to 960 MHz, the first zero point filling of the working area of the radiation direction of the antenna can reach above minus 15 dB and the side lobe in the interference area can be decreased below minus 18 dB, thus effectively reducing the co-channel interference of blind areas and adjacent subdistricts in the working area, and the antenna can be used in cellular mobile networks.