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非对称Doherty功率放大器的研究与设计 被引量：5

Design and analysis of asymmetrical Doherty power amplifier
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摘要 基于传统Doherty功放在实际应用中存在的某些缺陷,提出了一种可用于TD-SCDMA基站功放的非对称Doherty功放结构。输入端应用了不等功率功分器,且主功放和峰值功放的漏极偏压也不同。在一定程度上提高了功放的效率,增加了输出功率。 There are some limitations in the real implement for the Doherty amplifier.Based on the conventional Doherty amplifier,an asymmetrical Doherty amplifier architecture is studied,which can be used in the TD-SCDMA base station.The original power spliter is replaced by a unequal power spliter in the input port and the two amplifiers＇ drain bias voltages are different,which can increase the efficiency and enhance the output power compared with the conventional Doherty amplifier.
作者 郭东亮 薛红喜
机构地区 电子科技大学电子工程学院
出处 《电路与系统学报》 CSCD 北大核心 2011年第3期104-107,共4页 Journal of Circuits and Systems
关键词 功率放大器 DOHERTY 非对称 线性度 效率 power amplifier Doherty asymmetrical linearity efficiency
分类号 TN722.75 [电子电信—电路与系统]
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参考文献9

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二级参考文献9

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共引文献10

同被引文献43

  • 1Kim H youngjun, Seo Chulhun. Improvement of PAE in Doherty amplifier using dual bias control and PBG strueture[J]. Piers Online, 2007,7 (3) : 1033-1036.
  • 2Jangheon Kim, Jeonghyeon Cha, Ildu Kim, et al. Op- timum operation of asymmetrical-cells-based linear Doherty power amplifiers-uneven power drive and power matching [J]. IEEE Trans Microw Theory Tech, 2005,53 (3) : 1802-1809.
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  • 5Ju Young Lee, Ji Yeon Kim, Jong Heon Kim. A high power asymmetric Doherty amplifier with improved linear dynamic range[C]. Microwave Symposium Di- gest, 2006: 1348-1351.
  • 6Takashi Yamamoto, Takaya Kitahara, ShigeruHiura. 50%o drain efficiency doherty amplifier with optimized power range for W-CDMA signal [C]. Microwave Symposium Digest, 2007 : 1263-1266.
  • 7Yamamoto T, Kitahara T, Hiura S. High-linearity 60W Doherty amplifier for 1.8 GHz W-CDMA[C]. Microwave Symposium Digest, 2006 : 1352-1355.
  • 8Lee Y S, Lee M W, Jeong Y H. Asymmetric Doherty power amplifier with optimized characteristics in out- put power back-off range between 6 dB and 10 dB [C]. The 40th European Microwave Conference,2010:870-873.
  • 9CEN Like, LIU Tajun, YE Yan, et al. Optimization Design of Wideband Asymmetric Doherty Power Ampli- tiers [ C ]// Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on. Wuhan , China: Conference Publications, 2011:1-4.
  • 10LEE Yongsub, LEE Munwoo, KAM Sanho,et al. A high- ly linear and efficient three-way Doherty amplifier using two-stage GaN HEMT cells for repeater systems [ J ]. IEEE Microw. Wireless Compon Lett, 2009, 51 (12) : 2895 -2898.

引证文献5

二级引证文献13

电路与系统学报
2011年 第3期

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