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一种用于微波功放的新型预失真结构 被引量：4

New Pre-distortion Structure for Microwave Power Amplifier
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摘要 预失真技术是一种能有效的改善宽带信号线性度的方法。在普通的反向并联二极管预失真技术基础上做出了一定改进,提出了一种新的预失真线性化器电路结构。这种预失器结构简单,可以直接与功放级联,不需要延时线,相移器和衰减器等额外器件。通过调节二极管的偏置电压,电阻值和可调增益放大器,同时控制载波信号和IMD的相位和幅度变化。采用这种预失真器能够有效地补偿微波功放的非线性失真,ADS双音测试表明,IMD3和IMD5分别改善了41 dB和2.4 dB。 Pre- distortion technique is an effective method to improve the linearity of band- width signal, In this paper,a new predistortion structure is proposed based on normal predistortion method using anti - parallel Schottky diodes, This simple linearizer can be directly connected with PA, the AM and PM of carrier signal and IMD will be changed by adjusting the biased voltage and the value of resistance, By applying this linearizer to ADS simulation soft, two tones test results show that the improvements in IMD3 and IMD5 cancellations are 41 dB and 2.4 dB respectively.
作者 黄微波 李建清 辜文婷
机构地区 电子科技大学物理电子学院大功率微波电真空器件与技术国防科技重点实验室
出处 《现代电子技术》 2008年第15期74-76,共3页 Modern Electronics Technique
关键词 预失真 线性化器 肖特基二极管 ADS pre - distortion linearizer Schottky diodes ADS
分类号 TN722 [电子电信—电路与系统]
  • 相关文献

参考文献6

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二级参考文献9

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共引文献7

同被引文献20

  • 1贾建华,刘战胜.关于自适应预失真射频功率放大器线性化研究[J].微波学报,2005,21(3):48-50. 被引量：5
  • 2刘战胜,贾建华.一种新的用于射频功率放大器的预失真器[J].现代电子技术,2006,29(4):19-20. 被引量：8
  • 3钱业青.一种高效的用于RF功率放大器线性化的自适应预失真结构[J].通信学报,2006,27(5):35-40. 被引量：23
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引证文献4

二级引证文献2

现代电子技术
2008年 第15期

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