Broadband dipole antenna system having three collinear radiators
    2.
    发明授权
    Broadband dipole antenna system having three collinear radiators 失效
    具有三个共线辐射器的宽带偶极天线系统

    公开(公告)号:US4087823A

    公开(公告)日:1978-05-02

    申请号:US668475

    申请日:1976-03-19

    CPC classification number: H01Q21/10

    Abstract: This disclosure deals with a three-element unit array (or stacked groups of the same) that enables the use of very large length-to-diameter dipole elements to cover broad frequency bands, greater than 2:1 in frequency ratio, by novel feed structures exciting the element gaps.

    Abstract translation: 本公开涉及使用非常大的长径比偶极子元件来覆盖频率比大于2:1的宽频带的三元件单元阵列(或其相同组的阵列),通过新型馈电 结构激发元素间隙。

    Method of and apparatus for controlled dispensing of two-part bonding,
casting and similar fluids and the like
    3.
    发明授权
    Method of and apparatus for controlled dispensing of two-part bonding, casting and similar fluids and the like 失效
    控制分配两部分接合,铸造和类似流体等的方法和装置

    公开(公告)号:US5816445A

    公开(公告)日:1998-10-06

    申请号:US590389

    申请日:1996-01-25

    CPC classification number: B01F15/0458 B01F15/0454 F16K7/07

    Abstract: A novel two-part fluid dispensing and technique using fluids of similar or widely different viscosities and in flexible plastic or similar cartridges of a similar or different volumes, and with adjustable dispensing ratios by forcing the fluids out of their respective cartridges in response to variable air pressure into a static mixer, and thence along a dispensing flexible pinch tube, the opening and closing of which is controlled by a pinch valve operated in response either to manual or micro-processor-controlled control.

    Abstract translation: 一种新型的两部分流体分配和技术,其使用具有类似或广泛不同粘度的流体,以及具有类似或不同体积的柔性塑料或类似墨盒,并且通过响应于可变空气迫使流体从其各自的墨盒中而具有可调分配比 压力进入静态混合器,然后沿着分配的柔性夹管,其开启和关闭由通过手动或微处理器控制的控制来响应的夹管控制。

    Dipole antenna system with overhead coverage having
equidirectional-linear polarization
    4.
    发明授权
    Dipole antenna system with overhead coverage having equidirectional-linear polarization 失效
    具有等距线性极化的架空覆盖的偶极天线系统

    公开(公告)号:US4598296A

    公开(公告)日:1986-07-01

    申请号:US636166

    申请日:1984-07-31

    CPC classification number: H01Q21/29 H01Q9/28

    Abstract: A vertically oriented dipole antenna system for filling in overhead radiation or reception coverage with equidirectional-linear polarization (a linearly polarized field vector which lies in the plane of the system's vertical and horizontal axes) having, in combination, a balanced vertically oriented cylindrical dipole the inner adjacent ends of the elements of which are connected to supplemental conductors at points near the inner end of one element substantially ninety degrees apart along the circumference of the element and each extending outward a distance of the order of 0.15 of the wavelength of the mean frequency with which the antenna is to be operated and at an acute angle of the order of 33.degree. with respect to the horizontal, and a second pair of similar supplemental conductors connected to points near the inner end of the other element substantially ninety degrees circumferentially apart from one another and from the first-named points and of length substantially the said distance and extending at substantially said acute angle.

    Abstract translation: 垂直定向的偶极天线系统,用于填充具有等距线性偏振的架空辐射或接收覆盖(位于系统的垂直和水平轴的平面中的线性偏振场矢量),其组合具有平衡的垂直取向的圆柱形偶极子 元件的内部相邻端沿着元件的圆周基本上九十度的一个元件的内端附近的点处连接到补充导体,并且每个向外延伸平均频率的波长的0.15的距离 天线将被操作并且相对于水平面处于33°的锐角,并且第二对类似的补充导体连接到另一元件的内端附近的点,其大体上相差90度 从第一个命名点和长度大致上说这个dis 并以基本上所述的锐角延伸。

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