宇航计测技术 ›› 2018, Vol. 38 ›› Issue (3): 38-42.doi: 10.12060/j.issn.1000-7202.2018.03.06

• 论文 • 上一篇    下一篇

超宽带变频系统中的本振产生技术研究

王心洋1;田云峰1;高子阳2;宋旸1;张波1   

  1. 1、北京无线电计量测试研究所,北京100039;
    2、北京航空航天大学电子信息工程学院,北京100191
  • 出版日期:2018-06-25 发布日期:2018-06-25
  • 作者简介:王心洋(1988.05-),女,工程师,硕士,主要研究方向:频率合成技术。

Research on Local Oscillation Generation for an Ultra Wideband Frequency Converting System

WANG Xin-yang1;TIAN Yun-feng1;GAO Zi-yang2;SONG Yang1;ZHANG Bo1   

  1. 1、Beijing Institute of Radio Metrology and Measurement, Beijing 100039, China;
    2、School of Electronic and Information Engineer, Beihang University, Beijing 100191, China
  • Online:2018-06-25 Published:2018-06-25

摘要: 本振源是超宽带变频系统中的核心部件,本文以超宽带上变频系统为例,介绍变频系统中本振信号的产生技术。本文所设计的超宽带变频系统,经过三次上变频,可将(0.8~2.8)GHz 的低频信号变换至(0.5~40)GHz。变频过程中需要一系列点频本振和一组宽带本振,基于PLL+DFS 的方法产生点频本振,基于DDS+DFS 的方式产生宽带本振。

关键词: 超宽带, 变频系统, 本振产生

Abstract: Local oscillators are core components of ultra wideband (UWB) frequency converting systems. This paper introduces the techniques of local oscillation generation for a frequency converting system, taking a UWB up-converting system as example. The designed UWB frequency converting system converts a lower band of 0.8GHz~2.8GHz to an upper band of 0.5GHz~40GHz through three up-conversions. For the frequency conversion a series of single-tone oscillators and wideband oscillators are needed, which are generated by PLL+DDS and DDS+DPS techniques respectively.

Key words: Ultra-wideband, Frequency conversion system, Local oscillation generation