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1. 发明授权

US06504354B1 Signal analysis apparatus having YTO yttrium-iron garnet tuned oscillator 失效
标题翻译：具有YTO钇铁石榴石调谐振荡器的信号分析仪
公开(公告)号：US06504354B1
公开(公告)日：2003-01-07
申请号：US09868496
申请日：2001-06-18
申请人： Yuichi Waida
发明人： Yuichi Waida
IPC分类号： G01R2302
CPC分类号： H03B23/00 , G01R23/173 , H03B5/1882
摘要： A sweep controller supplies a current to a YTO(YIG-Yttrium-Iron-Garnet Tuned Oscillator) from a current drive circuit in such a manner that frequencies corresponding to a first range in an oscillation frequency of the YTO designated as a desired frequency range for analysis with one sweep, and a second range designated as a frequency range higher than the first range for the analysis with the next one sweep are oscillated by the YTO. Moreover, the sweep controller outputs an instruction for increasing the current flowing through the YTO from the current drive circuit over a part of a period between an end of the first range and a start of the second range in order to shorten the period between the end of the first range and the start of the second range when it is detected that a difference between an end frequency of the first range and a start frequency of the second range is larger than a predetermined frequency difference.
摘要翻译：扫频控制器将来自当前驱动电路的电流提供给YTO（YIG-钇铁铁石榴石调谐振荡器），使得与YTO的振荡频率中的第一范围相对应的频率被指定为期望的频率范围，通过一次扫描进行分析，并且指定为高于用于下一次扫描的分析的第一范围的频率范围的第二范围由YTO振荡。此外，扫描控制器输出用于在第一范围的结束和第二范围的开始之间的时间段的一部分周期从当前驱动电路输出用于增加流过YTO的电流的指令，以便缩短端部当检测到第一范围的结束频率与第二范围的起始频率之间的差异大于预定频率差时，第一范围的开始和第二范围的开始。

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