频谱分析仪中YTO本振分波段扫描控制

频谱分析仪中YTO本振分波段扫描控制设哥

内容简介：频谱分析仪作为一种通用测试仪器，是研制、监测众多电子产品的必备工具，而本振源扫描控制是频谱分析仪的核心部分，对整机的功能和指标起着决定性作用。本文在现代宽带频谱分析仪上采用分波段扫描控制，大大降低了成本，减小了射频前端的复杂度。首先在分析现代频谱分析仪扫描方法基础上提出了分波段扫描原理，然后分析了波段分界点频率跳变控制和扫描本振与中频的同步问题，最后用安捷伦示波器实际测试了该方法实现的分波段扫描斜坡电压。该方法成功应用于8GHz频谱分析仪当中。

Abstract：Spectrum analyzer is an indispensable tool, which is used for researching; monitoring a number of electronic products, while scanning design of the local oscillator is a core part of the spectrum analyzer because of its importance for functions and indicators. Firstly, this paper put forward the principle of multi-band scanning, secondly, we analysed frequence hopping and synchronization problems, finally, the actual slope voltage is tested by the agilent oscilloscope. The method was successfully applied to 8GHz spectrum analyzer.

作者：秦喜朋, 韩尧,

关键词：频谱分析仪, 本振源, 分波段扫描, YTO,