›› 2017, Vol. 30 ›› Issue (9): 5-.

• 论文 • 上一篇    下一篇

开关电源纹波对射频收发系统性能影响

王赛赛,卜刚,方芳   

  1. (南京航空航天大学 电子信息工程学院,江苏 南京 211100)
  • 出版日期:2017-09-15 发布日期:2017-11-03
  • 作者简介:王赛赛(1992-),男,硕士研究生。研究方向:模拟集成电路,射频电路设计。

The Study of Switching Mode Power Supply Induced Ripples Influence on RF Transceiver System

WANG Saisai,BU Gang,FANG Fang   

  1. (School of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China
  • Online:2017-09-15 Published:2017-11-03

摘要:

研究了使用开关电源为射频系统供电时,射频系统对于电源纹波的容忍度。从电源纹波泄漏到基带信号、电源纹波与射频信号混频两方面研究了电源纹波对系统的影响,并根据协议规范,确定出电源纹波值。在IEEE 802.11g协议下,通过仿真得出电源纹波应控制在15 mV以下。

关键词: 开关电源, 电源纹波, 射频收发机

Abstract:

This paper studies the tolerance of RF transceiver system to power supply induced ripple when the system is supplied by a switching mode dc-dc converter. The model of a IEEE802.11g RF transceiver system was built using ADS, then the effects of the leakage of power supply induced ripple to the baseband signal and the mixing of the ripple voltage with the RF signal have been studied. Then the maximum supply induced ripple voltage has been derived to be 15 mV according to the IEEE802.11g standard of communication protocol.

Key words: switching mode power supply, power ripple;RF transceiver

中图分类号: 

  • TN86