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    • 12. 发明申请
    • Mobile millimetric wave radar
    • 移动毫米波雷达
    • US20050069277A1
    • 2005-03-31
    • US10494932
    • 2001-11-09
    • Terumi NakazawaKenji TabuchiShuji EguchiTsuyoshi FujitaHidetaka Shigi
    • Terumi NakazawaKenji TabuchiShuji EguchiTsuyoshi FujitaHidetaka Shigi
    • G01S7/03G01S13/34G01S13/93H01Q1/32H01Q1/42H01Q21/00H01Q23/00G02B6/00
    • H01Q23/00G01S7/032G01S13/348G01S13/931G01S2013/9353H01L2223/6677H01L2224/16227H01L2224/48227H01L2924/19041H01L2924/19042H01L2924/19043H01L2924/19105H01Q1/3233H01Q1/42H01Q21/0087
    • An antenna unit for sending out electromagnetic waves of a millimetric-wave band to outside and receiving the wave reflected from a target, and circuits for signal-processing the reflected wave are equipped as a vehicular millimetric-wave radar device. Antenna patterns are formed on a surface of a multilayer base plate formed of plural stacked layers of dielectric plates and an electroconductive layer interposed between each layer. Circuit wiring patterns and electronic components for signal processing of millimetric waves are disposed on the reverse side. Among all the above-mentioned electronic components, only a millimetric-wave signal oscillator, amplifier, and frequency converter are haused in a hermetically sealed section formed in a localized space on a face of the multilayer base plate. The other electronic components are arranged in a non-hermetically structured condition on a periphery of the hermetically sealed section. The above-mentioned oscillator, amplifier, and frequency converter are hermetically sealed in an inert gas atmosphere, whereas at least part of the other electronic components arranged in a non-hermetically structured condition is protected by resin coating. With this configuration, a compact, thin, and highly accurate millimetric-wave radar device is provided at a low cost.
    • 天线单元,用于向外部发送毫米波段的电磁波并接收从目标反射的波,以及用于信号处理反射波的电路作为车辆毫米波雷达装置。 天线图案形成在由介电板的多个堆叠层和介于每层之间的导电层形成的多层基板的表面上。 用于毫米波信号处理的电路布线图形和电子部件设置在反面上。 在所有上述电子部件中,只有一个毫米波信号振荡器,放大器和变频器在形成在多层基板的表面上的局部空间中的气密密封部分中。 其他电子部件在气密密封部分的周边上以非气密结构的状态布置。 上述振荡器,放大器和变频器被气密地密封在惰性气体气氛中,而以非气密结构状态布置的其它电子部件的至少一部分被树脂涂覆保护。 通过这种配置,以低成本提供了紧凑,薄型和高精度的毫米波雷达装置。