| 温度补偿偏置电压的预失真处理技术研究 |
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| 引用本文： | 胡军,刘文清. 温度补偿偏置电压的预失真处理技术研究[J]. 北京邮电大学学报, 2005, 28(5): 102-105 |
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| 作者姓名： | 胡军 刘文清 |
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| 作者单位： | 中国科学院 安徽光学精密机械研究所，合肥 230031 |
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| 摘 要： | 设计了一种双功率管互补式预失真功率放大器，并给出了温度补偿偏置电压的具体设计电路. 通过实验证明了该放大器可在20?MHz信号带宽内改善放大器3阶互调指标10?dB，其温度补偿方式可使放大器在温度变化时3阶互调指标的变化保持在±15?dB以内.
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| 关 键 词： | 偏置电压 预失真 温度补偿 3阶互调 |
| 文章编号： | 1007-5321（2005）05-0102-04 |
| 收稿时间： | 2005-06-14 |
| 修稿时间： | 2005-06-14 |
Research on Predistortion Process Technology of Temperature Compensation Bias |
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| HU Jun,LIU Wen-qing. Research on Predistortion Process Technology of Temperature Compensation Bias[J]. Journal of Beijing University of Posts and Telecommunications, 2005, 28(5): 102-105 |
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| Authors: | HU Jun LIU Wen-qing |
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| Affiliation: | Anhui Institute of Optic and Fine Mechanics， Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | A kind of predistortion power amplifier by two radio frequency transistors reciprocal compensating was designed. And the temperature compensation circuit was presented. This predistortion power amplifier is verified by many experiments to improve intermodulation distortion(IMD) by 10?dB for a 20?MHz signal bandwidth, and the temperature compensation circuit can maintain IMD change within ±15?dB over the temperature range. |
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| Keywords: | bias predistortion temperature compensation intermodulation distortion |
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