公开(公告)号：US08126414B2

公开(公告)日：2012-02-28

申请号：US12326378

申请日：2008-12-02

申请人： Tae In Chung

发明人： Tae In Chung

IPC分类号： H04B1/06 ,  H04B7/00

CPC分类号： H01Q23/00 ,  H03G3/3052

摘要： An antenna for vehicles includes a first AGC unit and a second AGC unit. The first AGC unit determines the strength of a signal, which is input to the input stage of an amplifier without passing through a transistor. Depending on the determination result, the first AGC unit attenuates the signal and output the attenuated signal to the transistor. When a signal having a value equal to or greater than a reference value is input to the input stage, the second AGC unit operates so as to output the signal without passing through the transistor. According to the antenna, both signals in a strong electric field area and signals in a weak electric field area close to the strong electric field area can be effectively controlled.

摘要翻译： 用于车辆的天线包括第一AGC单元和第二AGC单元。 第一AGC单元确定信号的强度，其被输入到放大器的输入级而不通过晶体管。 根据确定结果，第一AGC单元衰减信号并将衰减的信号输出到晶体管。 当具有等于或大于参考值的值的信号被输入到输入级时，第二AGC单元操作以输出信号而不通过晶体管。 根据天线，可以有效地控制强电场区域中的两个信号和靠近强电场区域的弱电场区域中的信号。

公开(公告)号：US20090153740A1

公开(公告)日：2009-06-18

申请号：US12326378

申请日：2008-12-02

申请人： Tae In Chung

发明人： Tae In Chung

IPC分类号： H04N5/52

CPC分类号： H01Q23/00 ,  H03G3/3052

摘要： An antenna for vehicles includes a first AGC unit and a second AGC unit. The first AGC unit determines the strength of a signal, which is input to the input stage of an amplifier without passing through a transistor. Depending on the determination result, the first AGC unit attenuates the signal and output the attenuated signal to the transistor. When a signal having a value equal to or greater than a reference value is input to the input stage, the second AGC unit operates so as to output the signal without passing through the transistor. According to the antenna, both signals in a strong electric field area and signals in a weak electric field area close to the strong electric field area can be effectively controlled.

摘要翻译： 用于车辆的天线包括第一AGC单元和第二AGC单元。 第一AGC单元确定信号的强度，其被输入到放大器的输入级而不通过晶体管。 根据确定结果，第一AGC单元衰减信号并将衰减的信号输出到晶体管。 当具有等于或大于参考值的值的信号被输入到输入级时，第二AGC单元操作以输出信号而不通过晶体管。 根据天线，可以有效地控制强电场区域中的两个信号和靠近强电场区域的弱电场区域中的信号。