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    • 5. 发明授权
    • Digital polar modulator for a switch mode RF power amplifier
    • 用于开关模式RF功率放大器的数字极化调制器
    • US09025700B2
    • 2015-05-05
    • US14365885
    • 2011-12-16
    • Pylyp OstrovskyyJohann Christoph ScheyttJae Ho JungBong Hyuk ParkSung Jun Lee
    • Pylyp OstrovskyyJohann Christoph ScheyttJae Ho JungBong Hyuk ParkSung Jun Lee
    • H04L27/36H03F3/217H03M3/00H04L25/49
    • H04L27/367H03F3/2175H03M3/404H04L25/4927
    • A digital polar modulator (DPM) for transforming a baseband signal into a modulated digital modulator output signal comprises an input unit and two low-pass delta-sigma modulators, a first one being connected downstream from the first input part and configured to provide at its output a first pulse train in dependence on an amplitude- modulating baseband signal component, and a second one being connected downstream from the second input part and configured to provide at its output a multilevel quantized signal in dependence on a phase modulating baseband signal component; a multiphase generator, which is configured to provide a set of square-wave carrier signals having a common carrier frequency and exhibiting discrete phase shifts with respect to each other; a multiplexer, which is configured to provide a multiplexer output signal that is formed by switching, in dependence on a signal received at a select input as a function of time, between selected ones of the carrier signals; and a combiner unit.
    • 用于将基带信号变换为调制数字调制器输出信号的数字极调制器(DPM)包括输入单元和两个低通Δ-Σ调制器,第一个调制器连接在第一输入部分的下游, 根据幅度调制基带信号分量输出第一脉冲序列,第二脉冲序列连接在第二输入部分的下游,并且被配置为根据相位调制基带信号分量在其输出端提供多级量化信号; 多相发生器,其被配置为提供具有相同载波频率并且相对于彼此呈现离散相移的一组方波载波信号; 多路复用器,其被配置为提供多路复用器输出信号,所述多路复用器输出信号通过根据在选择输入端接收的信号作为时间的函数在所选择的载波信号之间进行切换而形成; 和组合器单元。
    • 6. 发明申请
    • DIGITAL POLAR MODULATOR FOR A SWITCH MODE RF POWER AMPLIFIER
    • 数字极性调制器,用于开关模式RF功率放大器
    • US20140307825A1
    • 2014-10-16
    • US14365885
    • 2011-12-16
    • Pylyp OstrovskyyJohann Christoph ScheyttJae Ho JungBong Hyuk ParkSung Jun Lee
    • Pylyp OstrovskyyJohann Christoph ScheyttJae Ho JungBong Hyuk ParkSung Jun Lee
    • H04L27/36H03M3/00H03F3/217H04L25/49
    • H04L27/367H03F3/2175H03M3/404H04L25/4927
    • A digital polar modulator (DPM) for transforming a baseband signal into a modulated digital modulator output signal comprises an input unit and two low-pass delta-sigma modulators, a first one being connected downstream from the first input part and configured to provide at its output a first pulse train in dependence on an amplitude- modulating baseband signal component, and a second one being connected downstream from the second input part and configured to provide at its output a multilevel quantized signal in dependence on a phase modulating baseband signal component; a multiphase generator, which is configured to provide a set of square-wave carrier signals having a common carrier frequency and exhibiting discrete phase shifts with respect to each other; a multiplexer, which is configured to provide a multiplexer output signal that is formed by switching, in dependence on a signal received at a select input as a function of time, between selected ones of the carrier signals; and a combiner unit.
    • 用于将基带信号变换为调制数字调制器输出信号的数字极调制器(DPM)包括输入单元和两个低通Δ-Σ调制器,第一个调制器连接在第一输入部分的下游, 根据幅度调制基带信号分量输出第一脉冲序列,第二脉冲序列连接在第二输入部分的下游,并且被配置为根据相位调制基带信号分量在其输出端提供多级量化信号; 多相发生器,其被配置为提供具有相同载波频率并且相对于彼此呈现离散相移的一组方波载波信号; 多路复用器,其被配置为提供多路复用器输出信号,所述多路复用器输出信号通过根据在选择输入端接收的信号作为时间的函数在所选择的载波信号之间进行切换而形成; 和组合器单元。
    • 9. 发明授权
    • Radio frequency receiver
    • 射频接收机
    • US08774747B2
    • 2014-07-08
    • US13488902
    • 2012-06-05
    • Seok-bong HyunBong Hyuk ParkYun Ho ChoiJae Ho Jung
    • Seok-bong HyunBong Hyuk ParkYun Ho ChoiJae Ho Jung
    • H04B1/10H03D1/06
    • H03F3/45179H03F3/72H03F2200/294H03F2203/45302H03F2203/45394H03F2203/7236
    • 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.
    • 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。
    • 10. 发明申请
    • RADIO FREQUENCY RECEIVER
    • 无线电频率接收机
    • US20130135048A1
    • 2013-05-30
    • US13488902
    • 2012-06-05
    • Seok-bong HYUNBong Hyuk ParkYun Ho ChoiJae Ho Jung
    • Seok-bong HYUNBong Hyuk ParkYun Ho ChoiJae Ho Jung
    • H03F3/45H03F3/16
    • H03F3/45179H03F3/72H03F2200/294H03F2203/45302H03F2203/45394H03F2203/7236
    • 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.
    • 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。