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US 2026/0163537 A1Published application
Power amplifier device, remote radio unit, and base station
AssigneeHuawei Technologies Co., Ltd.
InventorsJinhu Chen, Hailei Suo, Xueming Yu, Yijun Sun, Zhixiong Zeng, Jie Sun
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Abstract
The present disclosure discloses a power amplifier device, a remote radio unit, and a base station. The power amplifier device is applicable to input of up to three signals, and combines power through hybrid cascading of a coupler and a circulator. The coupler may be used as a last-stage power combination unit, or the circulator may be used as a last-stage power combination unit. The power amplifier device may generate at least three high-efficiency points.
Claims20
A power amplifier device, comprising:
- a first power amplifier circuit;
- a second power amplifier circuit;
- a third power amplifier circuit;
- a first coupler;
- and
- a circulator,
- wherein an input end of the first power amplifier circuit is configured to couple to a first signal, an input end of the second power amplifier circuit is configured to couple to a second signal, both an output end of the first power amplifier circuit and an output end of the second power amplifier circuit are coupled to an input port of the first coupler, and the first coupler is configured to output a signal obtained through power combination, and
- wherein an input end of the third power amplifier circuit is configured to couple to a third signal, an output port of the first coupler and an output end of the third power amplifier circuit are coupled to the circulator, and the circulator is configured to:
- combine power of a signal output by the third power amplifier circuit and the signal output by the first coupler, and then output a signal obtained through power combination.
6 more elements
A remote radio unit, comprising:
- a power amplifier device;
- and
- a duplexer, wherein one end of the power amplifier device is coupled to the duplexer,
- wherein the power amplifier device comprises a first power amplifier circuit, a second power amplifier circuit, a third power amplifier circuit, a first coupler, and a circulator,
- wherein an input end of the first power amplifier circuit is configured to couple to a first signal, an input end of the second power amplifier circuit is configured to couple to a second signal, both an output end of the first power amplifier circuit and an output end of the second power amplifier circuit are coupled to an input port of the first coupler, and the first coupler is configured to output a signal obtained through power combination, and
- wherein an input end of the third power amplifier circuit is configured to couple to a third signal, an output port of the first coupler and an output end of the third power amplifier circuit are coupled to the circulator, and the circulator is configured to:
- combine power of a signal output by the third power amplifier circuit and the signal output by the first coupler, and then output a signal obtained through power combination.
4 more elements
A base station, comprising:
- a remote radio unit;
- and
- an antenna,
- wherein the remote radio unit is coupled to the antenna, and
- the remote radio unit is configured to process a transmitted or received signal of the antenna,
- wherein the remote radio unit, comprising a power amplifier device, and a duplexer, wherein one end of the power amplifier device is coupled to the duplexer,
- wherein the power amplifier device comprises a first power amplifier circuit, a second power amplifier circuit, a third power amplifier circuit, a first coupler, and a circulator, wherein
- an input end of the first power amplifier circuit is configured to couple to a first signal, an input end of the second power amplifier circuit is configured to couple to a second signal, both an output end of the first power amplifier circuit and an output end of the second power amplifier circuit are coupled to an input port of the first coupler, and the first coupler is configured to output a signal obtained through power combination, and
- an input end of the third power amplifier circuit is configured to couple to a third signal, an output port of the first coupler and an output end of the third power amplifier circuit are coupled to the circulator, and the circulator is configured to:
- combine power of a signal output by the third power amplifier circuit and the signal output by the first coupler, and then output a signal obtained through power combination.
7 more elements
Dependencies are inferred from the claim text.