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    Electronic article surveillance system
    1.
    发明公开
    Electronic article surveillance system 失效
    电子物品监视系统

    公开(公告)号：EP0135049A1

    公开(公告)日：1985-03-27

    申请号：EP84108629.1

    申请日：1984-07-20

    申请人： ICI AMERICAS INC.

    发明人： Sensiper, Samuel ,  Williams, Harold B. ,  Fancher, Philip Daniel

    IPC分类号： G08B13/24

    CPC分类号： G08B13/2422 ,  G08B13/2471 ,  G08B13/2474

    摘要： @ An electronic article surveillance system for microwave frequencies (500 MHz and higher) has low profile (i.e., shallow) transmitter antenna arrays and a low profile receiver antenna array, each array comprising a pair of thin metal patches, spaced apart in the normal direction of travel through a surveillance zone, and a thin metal ground plane behind the patches. The patches and ground plane are in spaced parallel relationship. Each metal patch and the adjacent portion of the ground plane together form a cavity resonator which resonates at a desired transmitter or return signal frequency and thereby form a signal radiating or receiving structure. The patch size, path to ground plane spacing, and spacing between patches are determined by the desired resonant frequency.

    摘要翻译： @用于微波频率（500MHz及更高​​频率）的电子物品监视系统具有低轮廓（即，浅）发射器天线阵列和低轮廓接收器天线阵列，每个阵列包括一对薄金属贴片，在法线方向上间隔开 通过监视区的旅行，以及补丁后面的薄金属地平面。 贴片和地平面间隔平行。 每个金属片和接地平面的相邻部分一起形成空腔谐振器，其以期望的发射器或返回信号频率谐振并且由此形成信号辐射或接收结构。 贴片尺寸，接地平面间距和贴片间距由所需的谐振频率决定。

    Electronic article surveillance system
    2.
    发明公开
    Electronic article surveillance system 失效
    电子文章监督系统

    公开(公告)号：EP0133317A3

    公开(公告)日：1985-03-27

    申请号：EP84108951

    申请日：1984-07-27

    申请人： ICI AMERICAS INC.

    发明人： Sensiper, Samuel ,  Williams, Harold B. ,  Fancher, Philip Daniel

    IPC分类号： G08B13/24

    CPC分类号： G08B13/2422 ,  G08B13/2471 ,  G08B13/2474

    摘要： @ An electronic article surveillance system for microwave frequencies (500 MHz and higher) has microstrip antenna arrays each array comprising a dielectric substrate having a plurality of metal patches, spaced apart in the normal direction of travel through a surveillance zone, on one side and a metal ground plane on the other side. Each metal patch and the adjacent portion of the ground plane together form a cavity resonator which resonates at a desired transmitter or return signal frequency and thereby form a signal radiating or receiving structure. The patch size, patch to ground plane spacing, and spacing between patches are determined by the desired resonant frequency.

    Electronic article surveillance system
    5.
    发明公开
    Electronic article surveillance system 失效
    ElektronischesWarenüberwachung系统。

    公开(公告)号：EP0133317A2

    公开(公告)日：1985-02-20

    申请号：EP84108951.9

    申请日：1984-07-27

    申请人： ICI AMERICAS INC.

    发明人： Sensiper, Samuel ,  Williams, Harold B. ,  Fancher, Philip Daniel

    IPC分类号： G08B13/24

    CPC分类号： G08B13/2422 ,  G08B13/2471 ,  G08B13/2474

    摘要： @ An electronic article surveillance system for microwave frequencies (500 MHz and higher) has microstrip antenna arrays each array comprising a dielectric substrate having a plurality of metal patches, spaced apart in the normal direction of travel through a surveillance zone, on one side and a metal ground plane on the other side. Each metal patch and the adjacent portion of the ground plane together form a cavity resonator which resonates at a desired transmitter or return signal frequency and thereby form a signal radiating or receiving structure. The patch size, patch to ground plane spacing, and spacing between patches are determined by the desired resonant frequency.

    摘要翻译： 一种用于微波频率（500MHz及更高​​）的电子物品监视系统具有微带天线阵列，每个阵列包括具有多个金属片的电介质衬底，该多个金属片在一侧沿着通过监视区的正常行进方向间隔开，并且金属 地面在另一边。 每个金属贴片和接地平面的相邻部分一起形成谐振腔，谐振器以期望的发射器或返回信号频率谐振，从而形成信号辐射或接收结构。 贴片尺寸，贴片到接地平面间距和贴片之间的间距由所需的谐振频率决定。