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公开(公告)号:US5235343A
公开(公告)日:1993-08-10
申请号:US748326
申请日:1991-08-21
申请人: James Audren , Patrice Brault
发明人: James Audren , Patrice Brault
摘要: The present invention relates to an antenna apparatus emitting or receiving high frequency waves and comprising four parasitic vertical rod elements disposed symmetrically to a central vertical rod element and switching elements controlled by a control circuit so that the parasitic rod elements are applied successively and periodically to the ground potential by the control circuit.
摘要翻译: 本发明涉及一种发射或接收高频波的天线装置,包括四个寄生的垂直杆元件,其对称地布置在中心垂直杆元件和由控制电路控制的开关元件中,使得寄生杆元件被连续和周期地施加到 控制电路的接地电位。