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Collapsible wide band width discone antenna

机译:可折叠宽带宽盘天线

摘要

A collapsible discone antenna is provided with an ultra wide band width by providing a collapsible conical skeleton cone, with the rods of the skeleton being provided with meander lines so as to effectively reduce the overall dimensions of the antenna by a factor of 2, with the antenna rods being electrically interconnected at their distal ends so as to eliminate performance degradation due to varying ground conductivities. A specialized feed configuration is used in one embodiment to feed multiple antennas stacked above a low band disc through the utilization of one or more coaxial lines which are wrapped around a ferrite toroid so that they may be passed up through the low-band disc without detuning the low band discone antenna. The use of the toroid inductor between the low-band cone and the low-band disc further reduces the low frequency cutoff of the antenna by markedly decreasing the VSWR at frequencies as low as 20 megahertz.
机译:通过提供可折叠的圆锥形骨架圆锥体,可折叠的盘状天线具有超宽的宽度,骨架的杆上设有曲折线,从而有效地将天线的整体尺寸减小了2倍。天线杆在其远端电互连,以消除由于接地电导率变化而导致的性能下降。在一个实施例中,采用一种特殊的馈电配置,通过利用一条或多条同轴线将多根天线堆叠在低频带盘上方,这些同轴线缠绕在铁氧体磁环上,以便它们可以向上通过低频带盘而不会失谐低频段碟形天线。通过在低至20兆赫兹的频率下显着降低VSWR,可以在低频带锥体和低频带光盘之间使用环形电感进一步降低天线的低频截止频率。

著录项

  • 公开/公告号US2005057411A1

    专利类型

  • 公开/公告日2005-03-17

    原文格式PDF

  • 申请/专利权人 JOHN T. APOSTOLOS;

    申请/专利号US20030658186

  • 发明设计人 JOHN T. APOSTOLOS;

    申请日2003-09-09

  • 分类号H01Q11/12;H01Q13/00;

  • 国家 US

  • 入库时间 2022-08-21 22:24:31

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