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1. 发明授权

US4763131A Log-periodic monopole antenna array 失效
标题翻译：对数周期性单极天线阵列
公开(公告)号：US4763131A
公开(公告)日：1988-08-09
申请号：US19282
申请日：1987-02-26
申请人： William D. Rosser , Samuel C. Kuo , Gustavo E. Bird , Robert E. Davis
发明人： William D. Rosser , Samuel C. Kuo , Gustavo E. Bird , Robert E. Davis
IPC分类号： H01Q11/10 , H01Q21/20
CPC分类号： H01Q21/20 , H01Q11/105
摘要： In a log-periodic monopole antenna array of the type described in U.S. Pat. No. 3,286,268, each antenna of the array having active elements spaced over the top surface of a ground structure and grounded parasitic elements interspersed between the active elements, the improvement of means for mechanically and electrically connecting the parasitic elements to a non-solderable ground structure comprising an elongated block compressed into a correspondingly shaped groove in the structure. Screw means threadedly engage the ground structure in a direction transversely of the top surface thereof and abut against the block. The lower strip portion of the parasitic elements is disposed in the groove between the block and a groove side wall and is compressed therebetween when the screw means is tightened into the structure and against the block. In one embodiment, one side of the block and the adjacent side of the groove are tapered toward the opposite side of the groove so as to force the block against the strip when the screw means is tightened. In another embodiment the block abutting surface of the head of the screw means is tapered and forces the block against the strip when the screw means is tightened. A tight mechanical and electrical connection of the parasitic element strip portions in the array of antennas is thus achieved in a minimum of space.
摘要翻译：在美国专利中描述的类型的对数周期性单极天线阵列中，阵列的每个天线具有间隔在接地结构的顶表面上的有源元件和散布在有源元件之间的接地寄生元件，用于将寄生元件机械地和电连接到不可焊接的接地结构的装置的改进包括压缩成该结构中相应形状的槽的细长块。螺旋装置在横向于其顶表面的方向上螺纹地接合地面结构，并抵靠该块。寄生元件的下条带部分设置在块和槽侧壁之间的槽中，并且当螺钉装置被紧固到结构中并抵靠块时被压缩。在一个实施例中，块的一侧和槽的相邻侧朝向槽的相对侧逐渐变细，以便当螺钉装置被拧紧时迫使块抵靠条带。在另一个实施例中，当螺钉装置被拧紧时，螺钉装置的头部的块邻接表面是锥形的并且迫使块抵靠条带。因此，在最小的空间中实现了天线阵列中的寄生元件条部分的紧密的机械和电连接。

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