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Invention Publication
CN109716681A 功率放大器、射频拉远单元及基站 有权

  • Patent Title: 功率放大器、射频拉远单元及基站
  • Patent Title (English): POWER AMPLIFIER, RADIO REMOTE UNIT AND BASE STATION
  • Application No.: CN201680089217.1
    Application Date: 2016-09-27
  • Publication No.: CN109716681A
    Publication Date: 2019-05-03
  • Inventor: 蔡中华 , 张立鹏 , 王开展 , 庞志远 , 朱胜
  • Applicant: 华为技术有限公司
  • Applicant Address: 广东省深圳市龙岗区坂田华为总部办公楼
  • Assignee: 华为技术有限公司
  • Current Assignee: 华为技术有限公司
  • Current Assignee Address: 广东省深圳市龙岗区坂田华为总部办公楼
  • International Application: PCT/CN2016/100415 2016.09.27
  • International Announcement: WO2018/058323 ZH 2018.04.05
  • Date entered country: 2019-03-12
  • Main IPC: H04B17/13
  • IPC: H04B17/13 ;  H04B14/02
功率放大器、射频拉远单元及基站
Abstract:
本发明实施例提供一种功率放大器、射频拉远单元RRU及基站。多相脉冲宽度调制器调制产生N个多相脉冲宽度调制PWM信号；对所述多相脉冲宽度调制信号PWMn放大；对所述多相脉冲宽度调制信号PWMn滤波；并在功率管漏极或集电极合路。本申请提供的新型射频放大器，可有效降低包络馈电环路电感，提高视频带宽与DPD校正性能。
Abstract(English):

The embodiments of the present invention provide a power amplifier, a radio remote unit (RRU) and a base station. A multiphase pulse width modulator is used for modulating to generate a number N of multiphase pulse width modulation (PWM) signals, amplifying said multiphase pulse width modulation signals (PWMn), filtering said multiphase pulse width modulation signals (PWMn), and combining with a power tube drain electrode or a collector electrode. A new radio-frequency amplifier provided in the present application is capable of effectively lowering envelope feedback loop inductance, and increasing video bandwidth and DPD correction performance.

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