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HBT自热效应对功率放大器偏置电路的影响及补偿 被引量:2

Effect of HBT Self-Heating Effect on Bias Circuit for Power Amplifier and Its Compensation
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摘要 研究了GaAs HBT的自热效应对功率放大器镜像电流源偏置电路性能的影响.HBT自热效应使得这种偏置电路的镜像精度和温度特性变差.利用HBT器件特有的集电极电流热电负反馈理论,通过优化基极偏置电阻的方法,对自热效应进行了有效补偿,偏置电路的电流镜像精度得到有效提高,偏置电流温度漂移由9.5%减小到0.5%. The effect of GaAs hbt Self-Heating effect on current mirror bias circuit for power amplifier was studied. The effect of self-heating degraded the mirror accuracy and the temperature characteristic of the bias circuit. According to the novel electrical-thermal negative feedback of hbt, a simple method of optimizing a base bias resistor was used to compensate the self-heating in this bias circuit. The results showed that the mirror accuracy was improved and the variation of the bias current as temperature was reduced from 9.5 % to 0. 5 %.
出处 《电子器件》 CAS 2007年第3期829-832,共4页 Chinese Journal of Electron Devices
基金 中国科学院重大创新项目资助"新型高频 大功率化合物半导体电子器件研究(KGCX2-SW-107)"
关键词 自热效应 HBT 镜像电流源偏置电路 功率放大器 self-heating effect heterojunction bipolar transistor (HBT) current mirror bias circuit power amplifier
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参考文献9

  • 1Noh YS,Park JH,Park CS.A Novel Bias Circuit and MMIC Power Amplifier Implementation for W-CDMA Mobile Handsets[C]//Radio and Wireless Conference,2004 IEEE.
  • 2Yang Youngoo,Choi Kevin,Weller Kenneth P.Dc Booting Effect of Active Bias Circuit and it Optimization for Class-AB InGaP-HBT Power Amplifiers[J].IEEE Transactions on Microwave Theory and Techniques,May 2004,52(5):1455-1463.
  • 3Jarvinen E,Kalajo S,Matilainen M.Bias circuits for GaAs HBT Power Amplifiers Microwave Symposium Digest[C]//2001 IEEE MTT-S International.Volume 1,20-25 May 2001:507-510.
  • 4Liu W.The Handbook of I-V Heterjunction Bipolar Transistor[M].John Willy& Sons,1998.
  • 5Matilainen M J,Nummila K L I,Jarvinen E A,et al.An Integrated 900-MHz Push-Pull Power Amplifier for Mobile Applications[C]//Microwave Symposium Digest,2000 IEEE MTT-S International,11-16,June 2000,2:861-864.
  • 6Jarvinen E.GaAs HBT Power Amplifier with Smooth Gain Control Characteristics[C]//Radio and Wireless Conference 1998.RAWCON 98.1998 IEEE 9-12 Aug.1998:321-324.
  • 7United Monolithic Semiconductors (UMS),Inc.X-Band GaInP HBT 10 W High Power Amplifier Including on-Chip Bias Control Circuit[C]//Microwave Symposium Digest,2003 IEEE MTT-S International Volume 2,8-13 June 2003:855-858.
  • 8Xiaochong Cao.et al.Comparison of the New VBIC and Conventional Gummel-poon Bipolar Transistor Models[J].IEEE Transactions on Electron Devices,Feb.2000,47(2):427-433.
  • 9Yu Zhu,John K.Twynam,Motoji Yagura,et al.Self-Heating Effect Compensation in HBTs and Its Analysis and Simulation.Electron Devices[J].IEEE Transactions on,Nov.2001,48(11):2640-2646.

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