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    Microwave power divider
    5.
    发明授权
    Microwave power divider 失效
    微波功率分配器

    公开(公告)号：US4644302A

    公开(公告)日：1987-02-17

    申请号：US823628

    申请日：1986-01-29

    申请人： Ian R. Harris ,  Ewan W. Shepherd

    发明人： Ian R. Harris ,  Ewan W. Shepherd

    IPC分类号： H01P5/12 ,  H01P5/19

    CPC分类号： H01P5/12

    摘要： A divider is made from a layer (1) of conducting material carried on an insulating support (2). A first slotline (3) is formed in the conducting layer extending from a first input port (A). A second slotline (5, 6, 7) is formed at right-angles to and spaced from the end of the first slotline (3), extending between first and second output ports (C and D). Third and fourth slotlines (8, 9) extend from the end of the first slotline (3) to points on the second slotline spaced by a distance which is electrically short compared with one-quarter of a wavelength. The third and fourth slotlines (8, 9) are an odd multiple of quarter-wavelengths long. A resistor (10) is connected across the second slotline substantially midway between the ends of the third and fourth slotlines, and has a resistance such that the output ports are correctly terminated.

    摘要翻译： 分隔器由承载在绝缘支撑件（2）上的导电材料层（1）制成。 在从第一输入端口（A）延伸的导电层中形成第一槽槽（3）。 在第一和第二输出端口（C和D）之间延伸的第二槽槽线（5,6,7）形成为与第一槽线（3）的端部成直角并与其间隔开。 第三和第四开槽线（8,9）从第一时隙线（3）的端部延伸到第二槽线上的点，其与四分之一波长的电短距离间隔开距离。 第三和第四时隙线（8,9）是四分之一波长长的奇数倍。 电阻器（10）跨越第三槽槽线的端部之间的大致中间的第二缝合线连接，并且具有使输出端口正确终止的电阻。

    Tobacco-smoke filters
    6.
    发明授权
    Tobacco-smoke filters 失效
    烟草烟雾过滤器

    公开(公告)号：US4163452A

    公开(公告)日：1979-08-07

    申请号：US856344

    申请日：1977-12-01

    申请人： John D. Green ,  Ian R. Harris

    发明人： John D. Green ,  Ian R. Harris

    IPC分类号： A24D3/14

    CPC分类号： A24D3/14

    摘要： An improved tobacco-smoke filter or filter material contains granules of porous activated carbon to which has been applied a nitroxide of the group consisting of the nitroxide 4-oxo-2,2,6,6-tetramethylpiperidino-oxy, the nitroxide 1-nitronyl-3-oxyl-4,4,5,5-tetramethyl-2-phenyldihydroimidazole and mixtures thereof. The carbon may be loaded with 0.5 to 25%, suitably 1.0 to 15%, by weight of the nitroxide. Advantageously such a filter has provision for filter ventilation. For instance, in a triple filter with a center section containing the treated carbon, the said center section and/or the section upstream thereof is ventilated.

    摘要翻译： 改进的烟草烟雾过滤器或过滤材料包含多孔活性炭颗粒，其中已经施加了氮氧自由基4-氧代-2,2,6,6-四甲基哌啶氧基，氮氧化物1-硝基 -3-氧代-4,4,5,5-四甲基-2-苯基二氢咪唑及其混合物。 碳可以以0.5至25重量％，合适地为1.0至15重量％的氮氧化物负载。 有利地，这种过滤器具有用于过滤器通风的设备。 例如，在具有包含经处理的碳的中心部分的三重过滤器中，所述中心部分和/或其上游部分通风。