Feeding network for base station antenna

摘要

The present disclosure relates to feeding networks for base station antenna. Embodiments of the disclosure may comprise first and second phase shifters, and a 3-way power divider, including an input terminal, a first output terminal for feeding a first unit, a second output terminal connecting to the first phase shifter, and a third output terminal connecting to the second phase shifter. The feeding network may also comprise a first 2-way power divider, including an input terminal connecting to the first phase shifter, a first output terminal for feeding a second unit, and a second output terminal for cascading a third phase shifter. In addition, the feeding network may comprise a second 2-way power divider, including an input terminal connecting to the second phase shifter, a first output terminal for feeding a third unit, and a second output terminal for cascading a fourth phase shifter.

主权项

1. A feeding network for base station antenna, comprising a multi-level feeding structure, wherein:
each level includes:
first and second phase shifters;a 3-way power divider, including an input terminal for connecting to a feeding port, a first output terminal for feeding a first unit of the base station antenna, a second output terminal connecting to the first phase shifter, and a third output terminal connecting to the second phase shifter;a first 2-way power divider, including an input terminal connecting to the first phase shifter, a first output terminal for feeding a second unit of the base station antenna, and a second output terminal for cascading a third phase shifter; anda second 2-way power divider, including an input terminal connecting to the second phase shifter, a first output terminal for feeding a third unit of the base station antenna, and a second output terminal for cascading a fourth phase shifter; adjacent levels are connected to each other through tiling or laminating; the 3-way power divider, the first and second 2-way power dividers, and the first and second phase shifters in a same level are all placed in an integrally formed metal housing; the input terminal and the first output terminal of the 3-way power divider, the first output terminal of the first 2-way power divider, and the first output terminal of the second 2-way power divider are distributed along a same long side of the metal housing; the 3-way power divider, the first 2-way power divider, and the second 2-way power divider in a same level all include an air strip line in branch form.