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1. 发明授权

US07646250B2 Signal converter having compensation unit 有权
标题翻译：信号转换器具有补偿单元
公开(公告)号：US07646250B2
公开(公告)日：2010-01-12
申请号：US12008769
申请日：2008-01-14
申请人： Hyun-Won Mun , Il-Ku Nam , Won Ko
发明人： Hyun-Won Mun , Il-Ku Nam , Won Ko
IPC分类号： H03F3/04
CPC分类号： H03F3/193 , H03F1/223 , H03F1/3211 , H03F3/45179 , H03F2200/451 , H03F2203/45306 , H03F2203/45318
摘要： A signal converter includes a signal converting unit and a compensation unit. The signal converting unit generates intermediate differential signals at intermediate nodes in response to a single-ended signal. The compensation unit generates compensated differential signals at output nodes by minimizing phase and amplitude mismatch errors between the intermediate differential signals. The compensation unit includes a pair of transistors and a pair of capacitors configured in symmetry between the intermediate and output nodes. The signal converter of the present invention may be used to particular advantage in an RF receiver.
摘要翻译：信号转换器包括信号转换单元和补偿单元。信号转换单元响应于单端信号在中间节点产生中间差分信号。补偿单元通过使中间差分信号之间的相位和幅度失配误差最小化，在输出节点产生补偿差分信号。补偿单元包括一对晶体管和一对配置在中间和输出节点之间对称的电容器。本发明的信号转换器可以在RF接收机中特别有用。

2. 发明申请

US20080191807A1 Signal converter having compensation unit 有权
标题翻译：信号转换器具有补偿单元
公开(公告)号：US20080191807A1
公开(公告)日：2008-08-14
申请号：US12008769
申请日：2008-01-14
申请人： Hyun-Won Mun , Il-Ku Nam , Won Ko
发明人： Hyun-Won Mun , Il-Ku Nam , Won Ko
IPC分类号： H03F3/04
CPC分类号： H03F3/193 , H03F1/223 , H03F1/3211 , H03F3/45179 , H03F2200/451 , H03F2203/45306 , H03F2203/45318
摘要： A signal converter includes a signal converting unit and a compensation unit. The signal converting unit generates intermediate differential signals at intermediate nodes in response to a single-ended signal. The compensation unit generates compensated differential signals at output nodes by minimizing phase and amplitude mismatch errors between the intermediate differential signals. The compensation unit includes a pair of transistors and a pair of capacitors configured in symmetry between the intermediate and output nodes. The signal converter of the present invention may be used to particular advantage in an RF receiver.
摘要翻译：信号转换器包括信号转换单元和补偿单元。信号转换单元响应于单端信号在中间节点产生中间差分信号。补偿单元通过使中间差分信号之间的相位和幅度失配误差最小化，在输出节点产生补偿差分信号。补偿单元包括一对晶体管和一对配置在中间和输出节点之间对称的电容器。本发明的信号转换器可以在RF接收机中特别有用。

3. 发明申请

US20080280584A1 MIXER USED FOR DIRECT CONVERSION RECEIVER 有权
标题翻译：混合器用于直接转换接收器
公开(公告)号：US20080280584A1
公开(公告)日：2008-11-13
申请号：US12106475
申请日：2008-04-21
申请人： Won Ko , Sung-gi Yang
发明人： Won Ko , Sung-gi Yang
IPC分类号： H04B1/06
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D2200/0033 , H03D2200/0047
摘要： Provided is a mixer including a mixing unit configured to mix high frequency data signals and local oscillation (LO) signals, generate first and second low frequency data signals, and output the first and second low frequency data signals to first and second output terminals, respectively; a common mode amplification unit coupled to the mixing unit, the common mode amplification unit configured to compare a common mode voltage of the first and second low frequency data signals and a predetermined reference voltage, the common mode amplification unit further configured to output a feedback signal at a control node based on the comparison; a first load transistor coupled to the first output terminal and the control node, the first load transistor configured to provide the first output terminal with a first load current corresponding to the feedback signal; a first calibration transistor unit connected in parallel to the first load transistor in order to calibrate an input impedance of the first output terminal; and a first current mirror unit coupled to the first calibration transistor unit, the first current mirror unit configured to discharge a first calibration current that is output from the first calibration transistor unit to prevent the first calibration current from entering the first output terminal.
摘要翻译：提供一种混频器，包括：混合单元，被配置为混合高频数据信号和本地振荡（LO）信号，产生第一和第二低频数据信号，并将第一和第二低频数据信号分别输出到第一和第二输出端 ; 耦合到所述混合单元的共模放大单元，所述共模放大单元被配置为比较所述第一和第二低频数据信号的共模电压和预定参考电压，所述共模放大单元还被配置为输出反馈信号在控制节点的基础上进行比较; 耦合到所述第一输出端子和所述控制节点的第一负载晶体管，所述第一负载晶体管被配置为向所述第一输出端子提供与所述反馈信号相对应的第一负载电流; 第一校准晶体管单元，与第一负载晶体管并联连接，以校准第一输出端的输入阻抗; 以及耦合到所述第一校准晶体管单元的第一电流镜单元，所述第一电流镜单元被配置为对从所述第一校准晶体管单元输出的第一校准电流进行放电，以防止所述第一校准电流进入所述第一输出端。

4. 发明授权

US07991376B2 Mixer used for direct conversion receiver 有权
标题翻译：搅拌机用于直接转换接收机
公开(公告)号：US07991376B2
公开(公告)日：2011-08-02
申请号：US12106475
申请日：2008-04-21
申请人： Won Ko , Sung-gi Yang
发明人： Won Ko , Sung-gi Yang
IPC分类号： H04B1/26
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D2200/0033 , H03D2200/0047
摘要： Provided is a mixer including a mixing unit configured to mix high frequency data signals and local oscillation (LO) signals, generate first and second low frequency data signals, and output the first and second low frequency data signals to first and second output terminals, respectively; a common mode amplification unit coupled to the mixing unit, the common mode amplification unit configured to compare a common mode voltage of the first and second low frequency data signals and a predetermined reference voltage, the common mode amplification unit further configured to output a feedback signal at a control node based on the comparison; a first load transistor coupled to the first output terminal and the control node, the first load transistor configured to provide the first output terminal with a first load current corresponding to the feedback signal; a first calibration transistor unit connected in parallel to the first load transistor in order to calibrate an input impedance of the first output terminal; and a first current mirror unit coupled to the first calibration transistor unit, the first current mirror unit configured to discharge a first calibration current that is output from the first calibration transistor unit to prevent the first calibration current from entering the first output terminal.
摘要翻译：提供一种混频器，包括：混合单元，被配置为混合高频数据信号和本地振荡（LO）信号，产生第一和第二低频数据信号，并将第一和第二低频数据信号分别输出到第一和第二输出端 ; 耦合到所述混合单元的共模放大单元，所述共模放大单元被配置为比较所述第一和第二低频数据信号的共模电压和预定参考电压，所述共模放大单元还被配置为输出反馈信号在控制节点的基础上进行比较; 耦合到所述第一输出端子和所述控制节点的第一负载晶体管，所述第一负载晶体管被配置为向所述第一输出端子提供与所述反馈信号相对应的第一负载电流; 第一校准晶体管单元，与第一负载晶体管并联连接，以校准第一输出端的输入阻抗; 以及耦合到所述第一校准晶体管单元的第一电流镜单元，所述第一电流镜单元被配置为对从所述第一校准晶体管单元输出的第一校准电流进行放电，以防止所述第一校准电流进入所述第一输出端。

5. 发明授权

US06768380B2 Wideband, variable-bandwidth distributed amplifier 失效
标题翻译：宽带，可变带宽分布式放大器
公开(公告)号：US06768380B2
公开(公告)日：2004-07-27
申请号：US10269351
申请日：2002-10-11
申请人： John H. Hong , Jinho Jeong , Won Ko , Nyuntae Kim , Youngwoo Kwon , Kyushik Hong , John Hyunchul Hong
发明人： John H. Hong , Jinho Jeong , Won Ko , Nyuntae Kim , Youngwoo Kwon , Kyushik Hong , John Hyunchul Hong
IPC分类号： H03F360
CPC分类号： H03F3/607
摘要： A variable bandwidth, distributed amplifier circuit includes an input transmission line; an output transmission line; and a plurality of amplifier cells having a respective plurality of cell inputs distributed along the input transmission line and cell outputs distributed along said output transmission line. Each amplifier cell comprises a cascode amplifier having an input transistor, an output transistor, and a variable impedance device in a circuit branch coupled to a gate of the output transistor. The impedance of the variable impedance device is responsive to a variable bias control signal.
摘要翻译：可变带宽分布式放大器电路包括输入传输线; 输出传输线; 以及多个放大器单元，具有沿输入传输线分布的相应多个单元输入和沿着所述输出传输线分布的单元输出。每个放大器单元包括共源共栅放大器，其具有耦合到输出晶体管的栅极的电路支路中的输入晶体管，输出晶体管和可变阻抗器件。可变阻抗器件的阻抗响应于可变偏置控制信号。

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