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1. 发明授权

US07206565B2 Device for generating wide tunable frequency using frequency divider 有权
标题翻译：使用分频器产生宽可调谐频率的装置
公开(公告)号：US07206565B2
公开(公告)日：2007-04-17
申请号：US10421700
申请日：2003-04-24
申请人： Seung Min Oh , Hyo Seok Kwon , Yoo Sam Na , Gi Won Choi
发明人： Seung Min Oh , Hyo Seok Kwon , Yoo Sam Na , Gi Won Choi
IPC分类号： H04B1/26
CPC分类号： H04N5/4446 , H04B1/16
摘要： The present invention relate to a wideband frequency generating apparatus using a frequency dividing method of dividing a frequency signal of a voltage control oscillator to expand a frequency generating range. The apparatus comprises an oscillator unit generating a predetermined frequency signal, a mixer having a first input coupled to the oscillator unit to generate a difference signal by mixing the predetermined frequency signal with a signal inputted to a second input of the mixer, a first switch tuned on/off and coupling the predetermined frequency signal to an output of the mixer, a second switch turned on/off and coupling the output of the mixer to the second input of the mixer to form a feedback loop, a ½ frequency divider dividing the output of the mixer by ½ to generate a divided signal, a third switch tuned on/off and coupling the divided signal of the ½ frequency divider to the second input of the mixer unit, and a control logic unit generating on/off control signals turning on/off the mixer, the first switch, the second switch, the third switch in accordance with a selection of frequency generating ranges.
摘要翻译：本发明涉及一种使用分频方法来分频压控振荡器的频率信号以扩大频率产生范围的宽带频率发生装置。该装置包括产生预定频率信号的振荡器单元，混合器具有耦合到振荡器单元的第一输入，以通过将预定频率信号与输入到混频器的第二输入端的信号混合来产生差分信号，第一开关调谐开/关并将预定频率信号耦合到混频器的输出，第二开关导通/截止并将混频器的输出耦合到混频器的第二输入端以形成反馈回路，½分频器将输出的混频器产生分频信号，第三开关调谐开/关并将1/2分频器的分频信号耦合到混频器单元的第二输入端;以及控制逻辑单元，其产生开启/关闭控制信号根据频率发生范围的选择，关闭混频器，第一开关，第二开关，第三开关。

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