| 发明名称 |
Adaptively controlled pre-distortion circuits for RF power amplifiers |
| 摘要 |
A system includes a crest-factor reduction circuit, a signal analyzer, and a pre-distortion circuit. The crest-factor reduction circuit reduces a crest factor of a baseband signal and generates a feedforward signal. The signal analyzer generates parameters based on the feedforward signal and an output signal from a power amplifier. The pre-distortion circuit generates a pre-distorted baseband signal based on the parameters for input to the power amplifier. |
| 申请公布号 |
US9628120(B2) |
申请公布日期 |
2017.04.18 |
| 申请号 |
US201514961295 |
申请日期 |
2015.12.07 |
| 申请人 |
Scintera Networks LLC |
发明人 |
Yu Qian;Wang Yan;Krishnamoorthy Rajeev |
| 分类号 |
H04B1/62;H04B1/04 |
主分类号 |
H04B1/62 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A system comprising:
a crest-factor reduction circuit that reduces a crest factor of a baseband signal and that generates a feedforward signal; a signal analyzer that generates parameters based on the feedforward signal and an output signal from a power amplifier; a pre-distortion circuit that generates a pre-distorted baseband signal based on the parameters for input to the power amplifier; and an over-sampler that increases a data rate of the feedforward signal by at least a factor of 2. |
| 地址 |
Wilmington DE US |
