Phase shifter, base station antenna, and base station
AssigneeHuawei Technologies Co., Ltd.
InventorsXinming Liu, Xiangcai Meng, Gengfei Wu, Lan Yao, Yongzhan Chen
Life of this patent
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Abstract
In accordance with an embodiment, a system includes a phase shifter having a substrate, a coupling structure, a main feeder, and at least one strip line. The coupling structure has an arc-shaped coupling surface. One end of the main feeder is electrically connected to the coupling surface, and another end of the main feeder is a signal input end. The signal input end is configured to receive a first electrical signal. The strip line has an arc-shaped segment and two signal output ends, and the signal output ends are configured to output second electrical signals.
Claims20
A system, comprising:
- a phase shifter comprising:
- a substrate,
- a coupling surface, a main feeder, and a strip line disposed on the substrate, wherein one end of the main feeder is electrically connected to the coupling surface, another end of the main feeder is a signal input end, and the signal input end is configured to receive a first electrical signal, and
- the strip line has an arc-shaped segment and two signal output ends located at two ends of the strip line, and the signal output ends are configured to output second electrical signals;
- and
- a swing arm mounted on the substrate, wherein:
- one end of the swing arm is electrically connected to the coupling surface, and another end of the swing arm is electrically connected to the arc-shaped segment of the strip line, and
- based on a phase of the first electrical signal received by the signal input end, phase changes of the second electrical signals output by the two signal output ends have an equal magnitude and are in opposite directions.
A base station antenna, comprising:
- a plurality of radiating elements;
- an adjustment apparatus;
- a phase shifter comprising:
- a phase shifter component comprising:
- a substrate,
- a coupling surface, a main feeder, and a strip line disposed on the substrate, wherein one end of the main feeder is electrically connected to the coupling surface, another end of the main feeder is a signal input end, and the signal input end is configured to receive a first electrical signal, and
- the strip line has an arc-shaped segment and two signal output ends located at two ends of the strip line, and the signal output ends are configured to output second electrical signals;
- and
- a swing arm mounted on the substrate, wherein one end of the swing arm is electrically connected to the coupling surface, and another end of the swing arm is electrically connected to the arc-shaped segment of the strip line, wherein
- based on a phase of the first electrical signal received by the signal input end, phase changes of the second electrical signals output by the two signal output ends have an equal magnitude and are in opposite directions, wherein the signal output ends are configured to be connected to radiating elements of the plurality of radiating elements in a one-to-one correspondence, and the adjustment apparatus is configured to drive the swing arm to rotate around a rotation center.
Dependencies are inferred from the claim text.