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    • 2. 发明授权
    • Pane antenna having an amplifier
    • 具有放大器的平面天线
    • US5289197A
    • 1994-02-22
    • US899492
    • 1992-06-16
    • Heinz LindenmeierGerhard Flachenecker,deceasedJochen HopfLeopold Reiter
    • Heinz LindenmeierGerhard Flachenecker,deceasedJochen HopfLeopold Reiter
    • H01Q1/12H01Q23/00H01Q1/320H01Q23/000
    • H01Q23/00H01Q1/1271
    • An active reception antenna arranged on a non-conductive flat supporting piece (1, 2) set in a conductive body (2) of a motor vehicle, has an active four terminal network (5) having two input terminals (6a, 6b) and two output terminals (7a, 7b), an elongated antenna conductor (3a) secured on the supporting piece, an output transmission line (8) having a first section (14) of well defined layout which is connected to the output terminals (7a, 7b) and forms another antenna conductor (14) with a length (20) introducing a non-negligible however defined impedance for high frequencies between one of the output terminals (7b) and a ground contact (10), the input terminals (6a, 6b) being connected to the first mentioned elongated antenna conductor (3a) and to the other antenna conductor (14), providing an appropriate source impedance at the input of the active four terminal network, the output transmission line (8) having a second section (15) which is connected to the ground contact (10) and also to an inner connector (11a) of the first section (14) of the output transmission line (8), the inner connector (11a) being connected with another of the output terminals (7a), the one output terminal (7b) being connected to the ground contact (10).
    • 布置在设置在机动车辆的导电体(2)中的非导电平坦支撑件(1,2)上的主动接收天线具有有效的四端网络(5),其具有两个输入端子(6a,6b)和 两个输出端子(7a,7b),固定在支撑件上的细长天线导体(3a),输出传输线(8),其具有连接到输出端子(7a,7b)的明确布置的第一部分(14) 并且形成另一个天线导体(14),其长度(20)为输出端(7b)之一和接地触头(10)之间的高频引入不可忽略但不限定的阻抗,输入端(6a, 6b)连接到第一提到的细长天线导体(3a)和另一个天线导体(14),在有源四端网络的输入处提供适当的源阻抗,输出传输线(8)具有第二部分 (15),其连接到接地触点(10)和 还连接到输出传输线(8)的第一部分(14)的内部连接器(11a),内部连接器(11a)与另一个输出端子(7a)连接,一个输出端子(7b)是 连接到接地触点(10)。
    • 3. 发明授权
    • Signal separating device
    • 信号分离装置
    • US5293173A
    • 1994-03-08
    • US820612
    • 1992-01-28
    • Jerzy J. KropielnickiBrian Easter
    • Jerzy J. KropielnickiBrian Easter
    • H01Q1/32H01Q1/12H01Q23/00H01Q1/020H01Q1/320
    • H01Q23/00H01Q1/1278
    • A device for use with an electrically heated window to enable it to be used as a radio antenna has a bifilar wound choke (2) which allows passage of heater current while isolating radio signals from the heater power circuit. The device is connected to radio apparatus via an amplifier (13). The choke (2) and the input of the amplifier (13) are both of relatively low impedance. The choke (2) may be a pot-cored bifilar winding and the amplifier (13) may use a field effect transistor in its input stage connected in grounded gate configuration.
    • PCT No.PCT / GB90 / 01059 Sec。 371日期1992年1月28日 102(e)日期1992年1月28日PCT提交1990年7月10日PCT公布。 第WO91 / 01575号公报 日期:1991年2月7日。一种与电加热窗口一起使用以使其能够用作无线电天线的装置具有允许通过加热器电流同时隔离来自加热器电源电路的无线电信号的双引线扼流器(2)。 该设备经由放大器(13)连接到无线电设备。 扼流圈(2)和放大器(13)的输入都具有相对较低的阻抗。 扼流器(2)可以是盆式双线绕组,并且放大器(13)可以在其接地门配置中连接的输入级中使用场效应晶体管。