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1. 发明申请

US20130135048A1 RADIO FREQUENCY RECEIVER 有权
标题翻译：无线电频率接收机
公开(公告)号：US20130135048A1
公开(公告)日：2013-05-30
申请号：US13488902
申请日：2012-06-05
申请人： Seok-bong HYUN , Bong Hyuk Park , Yun Ho Choi , Jae Ho Jung
发明人： Seok-bong HYUN , Bong Hyuk Park , Yun Ho Choi , Jae Ho Jung
IPC分类号： H03F3/45 , H03F3/16
CPC分类号： H03F3/45179 , H03F3/72 , H03F2200/294 , H03F2203/45302 , H03F2203/45394 , H03F2203/7236
摘要： A radio frequency receiver of the present invention removes out-of-band jamming signals and interference signals without SAW filters. The radio frequency receiver includes: a low noise amplifier amplifying a signal received through an antenna; a second order intermodulation cancellation unit removing second order intermodulation caused by an out-of-band jamming or interference signal included in the signal output from the low noise amplifier; a passive mixer unit converting a frequency of the signal output from the second order intermodulation cancellation unit; and a low pass filter unit removing an out-of-band jamming or interference signal included in the signal output from the passive mixer unit and delivering the signal with the out-of-band jamming or interference signal removed therefrom to a transimpedance amplifier.
摘要翻译：本发明的射频接收机在没有SAW滤波器的情况下去除带外干扰信号和干扰信号。射频接收机包括：放大通过天线接收的信号的低噪声放大器; 二阶互调消除单元去除由低噪声放大器输出的信号中包含的带外干扰或干扰信号引起的二阶互调; 无源混频器单元，转换从二阶互调消除单元输出的信号的频率; 以及低通滤波器单元，去除从无源混频器单元输出的信号中包含的带外干扰或干扰信号，并且将从其去除的带外干扰或干扰信号的信号传送到跨阻抗放大器。

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