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高效率前馈放大器单环抑制性能 被引量:2

Cancellation performance of a linearization loop of a high efficiency feedforward amplifier
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摘要 国外有学者提出了一种延迟线失配法来提高前馈放大器的效率。为了更全面考察这种方法对于前馈放大器单环抑制性能,尤其是误差环路的抑制性能的影响,从幅度、相位误差以及延迟线失配3个方面进行了仔细全面地分析,并得出了相应的结论。 A foreign scholar has brought forward some kind of delay mismatch method to improve the efficiency of feedforward amplifiers. In order to observe the effect on cancellation performance of linearization loop of feedforward amplifiers, especially on cancellation performance of error cancellation loop, this article analyzes the method carefully and completely from magnitude error, phase error and delay mismatch, and gets corresponding conclusions.
出处 《重庆邮电学院学报(自然科学版)》 2005年第3期312-315,共4页 Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)
关键词 前馈放大器 延迟线失配 抑制性能 feedforward amplifiers delay mismatch cancellation performance
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参考文献4

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  • 4KANG Sanggee, JUNG Youngjun Joungjun,LEE Ilkyoo.Novel analysis of the cancellation performance of a feedforward amplifier[A].Global Telecommunications Conference, 1997,GLOBECOM '97[C]. IEEE,1997,1(3-8).

同被引文献18

  • 1李铭祥,张广军,葛建民,韩建国.第三代移动通信高线性微波功放的设计与实现[J].电讯技术,2004,44(4):112-115. 被引量:1
  • 2PANSu,FENGGuang-zheng,ZHUQi.A Novel Effective Bandwidth Based Call Admission Control for Multimedia CDMA Systems[J].The Journal of China Universities of Posts and Telecommunications,2004,11(4):70-74. 被引量:3
  • 3Liu Y J, Zhou J, Chen W H, et al. A robust augmented complexity-reduced generalized memory polynomial for wideband RF power ampli- fiers[J]. IEEE Trans Industrial Electronics, 2014, 61(5) : 2389-2401.
  • 4James K. Adaptation behavior of a feedforward amplifier linearizer[J]. IEEE Trans Vehicular Technology, 1995, 44(1): 31-40.
  • 5Parsons K J, Kenington P B. The efficiency of a fecdforward amplifier with delay loss[J]. IEEE Trans Vehicular Technology, 1994, 43 (2) : 407-412.
  • 6Shahed A, Burglechne S, Hasim A, et al. Implementation and performance of DSP oriented feedforward power amplifier linearizer[J]. IEEE Trans Circuits and Systems, 2012, 59(2) : 409-425.
  • 7Gokceoglu A, Shahed A, Valkama M. Steady-state performance analysis and step-size selection for LMS-adaptive wideband feedforward power amplifier linearizer[J]. IEEE Trans Signal Processing, 2012, 60(1) : 82-99.
  • 8Parsons K J, Kenington P B. Effect of delay mismatch on a feedforward amplifier[J]. IEEE Trans Circuits and Systems, 1994, 141(2) : 140-144.
  • 9Kang S G, Kyoo L. Cancellation pcrformance of a linearisation loop of a feedforward amplifier[J]. Electronics Letters, 1997, 33(6) : 444-445.
  • 10Richard N B. Positive feedback pilot system for second loop control in a feedforward power amplifier[J]. IEEE Trans Circuits and Systems, 2008, 55(10): 3293-3305.

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