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1. 发明授权

US6154166A Microwave detector 失效
标题翻译：微波探测器
公开(公告)号：US6154166A
公开(公告)日：2000-11-28
申请号：US162347
申请日：1998-09-28
申请人： Motoshi Sawada , Yuichi Kajita , Mitsuhiro Imura , Shinji Koike , Akira Ito , Hisao Ono
发明人： Motoshi Sawada , Yuichi Kajita , Mitsuhiro Imura , Shinji Koike , Akira Ito , Hisao Ono
IPC分类号： G01S7/38 , G01S7/00 , G01S7/02 , G01S7/40 , H04B17/00
CPC分类号： G01S7/00 , G01S7/021
摘要： In order to detect microwaves from radar type speed measurement devices and microwaves leaking out of reverse detectors without being detected by such reverse detectors, a microwave detector is provided with a super-heterodyne type reception circuit for cyclically performing reception operations to receive target microwave frequencies of prescribed microwave bands, the reception circuit including a first local oscillator which can carry out a fixed oscillation at a prescribed frequency or a sweep of a prescribed frequency range established slightly outside the frequency range of the local oscillator of a reverse detector, and a plurality of second local oscillators having different oscillation frequencies, whereby the reception circuit is able to receive microwaves in the target bands and microwaves leaking out of the local oscillator of a reverse detector.
摘要翻译：为了从雷达式速度测量装置和从反向检测器泄漏的微波中检测微波而不被这种反向检测器检测到，微波检测器设置有超外差型接收电路，用于循环执行接收操作以接收目标微波频率规定的微波频带，所述接收电路包括能够以规定频率执行固定振荡的第一本地振荡器或略微超出反向检测器的本地振荡器的频率范围的规定频率范围的扫描，以及多个第二本地振荡器具有不同的振荡频率，由此接收电路能够接收目标频带中的微波和从反向检测器的本地振荡器泄漏的微波。

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