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    Three-wave antenna for vehicles
    1.
    发明授权
    Three-wave antenna for vehicles 失效
    车载三波天线

    公开(公告)号：US5406296A

    公开(公告)日：1995-04-11

    申请号：US57615

    申请日：1993-05-05

    申请人： Yoshimi Egashira ,  Katsuhiko Yamakawa

    发明人： Yoshimi Egashira ,  Katsuhiko Yamakawa

    IPC分类号： H01Q1/32 ,  H01Q5/10 ,  H01Q5/15 ,  H01Q5/321 ,  H01Q9/30

    CPC分类号： H01Q1/32 ,  H01Q5/321

    摘要： A three-wave antenna for vehicles which includes a monopole antenna element which has an electrical length of approximately 1/4 of the wavelength in the FM broadcast band along with a double sleeve used to prevent current flow and with a second double sleeve used for phase adjustment that are installed coaxially with the antenna element. The positional relationships between the inner and outer cylinders of each one of the first and second double sleeves relative to the antenna element are respectively specified. In addition, an antenna attachment which has a capacitive reactance and is installed at the base of the antenna element so that it cancels the inductive reactance of the antenna and causes the impedance of the antenna to approach a prescribed value is employed together with a wave splitter which includes a high pass filter that has a double tuning function with respect to the inductive reactance and the capacitive reactance and a low pass filter that separates the AM/FM broadcast band signals from the telephone band.

    摘要翻译： 一种用于车辆的三波天线，其包括单极天线元件，其具有在FM广播频带中的大约1/4波长的电长度以及用于防止电流流动的双套筒，以及用于相位的第二双套筒 与天线元件同轴安装的调整。 分别指定第一和第二双套筒中的每一个相对于天线元件的内筒和外筒之间的位置关系。 另外，天线附件具有容抗，并且安装在天线元件的底部，使得其消除天线的感抗并使天线的阻抗接近规定值与波分路器 其包括相对于感抗和电容性电抗具有双调谐功能的高通滤波器，以及将AM / FM广播频带信号与电话频带分开的低通滤波器。

    Illuminant-mounted antenna
    5.
    发明授权
    Illuminant-mounted antenna 失效
    照明天线

    公开(公告)号：US5917453A

    公开(公告)日：1999-06-29

    申请号：US812432

    申请日：1997-03-07

    申请人： Shigeru Uchino ,  Katsuhiko Yamakawa

    发明人： Shigeru Uchino ,  Katsuhiko Yamakawa

    IPC分类号： H01Q1/06 ,  H01Q1/10 ,  H01Q1/24

    CPC分类号： H01Q1/06 ,  H01Q1/242

    摘要： An illuminant-mounted antenna includes a rod-shaped antenna element, an illuminant mounted on top of the rod-shaped antenna element, and lighting means for lighting the illuminant by high frequency energy generated on the rod-shaped antenna element when a portable transceiver is operated. The lighting means includes a high frequency detecting diode and an inductive element. One end of the high frequency detecting diode and one end of the inductive element are connected in common to the top of the rod-shaped antenna element, and the other end of the high frequency detecting diode and the other end of the inductive element are connected to both ends of the illuminant. It is preferable that the rod-shaped antenna element be a whip antenna element capable of transmitting/receiving a very-high-frequency radio wave and an ultra-high-frequency radio wave, and an antenna element mounted on the portable transceiver, the illuminant be a light-emitting diode whose current ranges from 10 mA to 20 mA, and the inductive element be a coil whose inductance ranges from 13 nH to 40 nH.

    摘要翻译： 安装有发光体的天线包括杆形天线元件，安装在棒状天线元件顶部的发光体，以及照明装置，用于当便携式收发器是在杆状天线元件上时在棒状天线元件上产生的高频能量点亮发光体 操作。 照明装置包括高频检测二极管和电感元件。 高频检测二极管的一端和电感元件的一端共同连接到棒状天线元件的顶部，高频检测二极管的另一端和电感元件的另一端连接 到光源的两端。 优选地，棒状天线元件是能够发送/接收非常高频无线电波和超高频无线电波的鞭状天线元件，以及安装在便携式收发器上的天线元件，所述发光体 作为电流范围为10mA至20mA的发光二极管，电感元件为电感为13nH至40nH的线圈。