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1. 发明授权

US07525395B2 Step attenuator 有权
标题翻译：阶衰减器
公开(公告)号：US07525395B2
公开(公告)日：2009-04-28
申请号：US12140980
申请日：2008-06-17
申请人： Hyeon Seok Hwang , Yoo Sam Na , Moon Sun Kim , Byeong Hak Jo , Kyoung Seok Park
发明人： Hyeon Seok Hwang , Yoo Sam Na , Moon Sun Kim , Byeong Hak Jo , Kyoung Seok Park
IPC分类号： H01P1/22
CPC分类号： H03H7/25
摘要： There is provided a step attenuator having two Pi-type attenuators and one bridged-T type attenuator that share some resistors. The step attenuator is used to prevent a reduction in frequency range caused by use of MOS transistors and reduce attenuation of signal power and frequency band by the MOS transistors, thereby obtaining a low attenuation value and reducing input and output mismatch.
摘要翻译：提供了具有两个Pi型衰减器和一个共享一些电阻器的一个桥接T型衰减器的阶跃衰减器。步进衰减器用于防止使用MOS晶体管引起的频率范围的降低，并减少MOS晶体管对信号功率和频带的衰减，从而获得低衰减值并降低输入和输出失配。

2. 发明申请

US20110025421A1 STEP VARIABLE GAIN AMPLIFIER 有权
标题翻译： STEP VARIABLE增益放大器
公开(公告)号：US20110025421A1
公开(公告)日：2011-02-03
申请号：US12614279
申请日：2009-11-06
申请人： Moon Sun KIM , Yoo Sam Na
发明人： Moon Sun KIM , Yoo Sam Na
IPC分类号： H03G3/30
CPC分类号： H03G1/0088 , H03F1/32 , H03F3/72 , H03F2200/211 , H03F2200/27 , H03F2200/294 , H03F2200/451 , H03F2203/7206 , H03F2203/7215 , H03F2203/7236 , H03G1/0029
摘要： Disclosed is a step variable gain amplifier for linearly amplifying a signal received from an antenna. The step variable gain amplifier includes: an amplification unit for converting and amplifying a voltage component of a received signal into a current voltage according to a step amplification control signal; a controller for generating a step amplification control signal of the received signal and controlling on/off of the amplification unit according to the control signal; and an output unit connected to the amplification unit, the output unit outputting a voltage component from the signal that has been subjected to conversion into the current component and amplification processes.
摘要翻译：公开了一种用于线性放大从天线接收的信号的步进可变增益放大器。步进可变增益放大器包括：放大单元，用于根据步进放大控制信号将接收信号的电压分量转换和放大为电流电压; 控制器，用于产生接收信号的步长放大控制信号，并根据控制信号控制放大单元的导通/关断; 以及连接到所述放大单元的输出单元，所述输出单元从已经被转换成当前分量的信号和放大处理输出电压分量。

3. 发明授权

US07663443B2 Active balun circuit 失效
标题翻译：主动平衡 - 不平衡转换电路
公开(公告)号：US07663443B2
公开(公告)日：2010-02-16
申请号：US12197150
申请日：2008-08-22
申请人： Moon Sun Kim , Yoo Sam Na , Hyeon Seok Hwang
发明人： Moon Sun Kim , Yoo Sam Na , Hyeon Seok Hwang
IPC分类号： H03F3/04
CPC分类号： H03H11/32
摘要： There is provided an active balun circuit including: a load circuit unit including a first and a second load; a differential amplifying unit including a first amplifying unit connected to the first load, and a second amplifying unit connected to the second load and forming a differential amplifying unit together with the first amplifying unit, the differential amplifying unit differentially amplifying an input signal, and outputting first and second output signals out-of-phase with each other through first and second output terminals, respectively; a current source connected between a ground and a common connection node of the first and second amplifying units, and maintaining a constant amount of current flowing through the differential amplifying unit; and a compensation amplifying unit amplifying the input signal supplied through the input terminal, transmitting the amplified input signal to the second amplifying unit, and rejecting common mode noise of the differential amplifying unit.
摘要翻译：提供了一种主动平衡 - 不平衡变换电路，包括：负载电路单元，包括第一和第二负载; 差分放大单元，包括连接到第一负载的第一放大单元和连接到第二负载的第二放大单元，与第一放大单元一起形成差分放大单元，差分放大单元对输入信号进行差分放大，并输出第一和第二输出信号分别通过第一和第二输出端子彼此异相; 电流源，连接在所述第一和第二放大单元的接地和公共连接节点之间，并且保持流经所述差分放大单元的恒定电流量; 以及补偿放大单元，放大通过输入端子提供的输入信号，将放大的输入信号发送到第二放大单元，以及拒绝差分放大单元的共模噪声。

4. 发明申请

US20090051440A1 ACTIVE BALUN CIRCUIT 失效
标题翻译：主动BALUN电路
公开(公告)号：US20090051440A1
公开(公告)日：2009-02-26
申请号：US12197150
申请日：2008-08-22
申请人： Moon Sun Kim , Yoo Sam Na , Hyeon Seok Hwang
发明人： Moon Sun Kim , Yoo Sam Na , Hyeon Seok Hwang
IPC分类号： H03F3/45
CPC分类号： H03H11/32
摘要： There is provided an active balun circuit including: a load circuit unit including a first and a second load; a differential amplifying unit including a first amplifying unit connected to the first load, and a second amplifying unit connected to the second load and forming a differential amplifying unit together with the first amplifying unit, the differential amplifying unit differentially amplifying an input signal, and outputting first and second output signals out-of-phase with each other through first and second output terminals, respectively; a current source connected between a ground and a common connection node of the first and second amplifying units, and maintaining a constant amount of current flowing through the differential amplifying unit; and a compensation amplifying unit amplifying the input signal supplied through the input terminal, transmitting the amplified input signal to the second amplifying unit, and rejecting common mode noise of the differential amplifying unit.
摘要翻译：提供了一种主动平衡 - 不平衡变换电路，包括：负载电路单元，包括第一和第二负载; 差分放大单元，包括连接到第一负载的第一放大单元和连接到第二负载的第二放大单元，与第一放大单元一起形成差分放大单元，差分放大单元对输入信号进行差分放大，并输出第一和第二输出信号分别通过第一和第二输出端子彼此异相; 电流源，连接在所述第一和第二放大单元的接地和公共连接节点之间，并且保持流经所述差分放大单元的恒定电流量; 以及补偿放大单元，放大通过输入端子提供的输入信号，将放大的输入信号发送到第二放大单元，以及拒绝差分放大单元的共模噪声。

5. 发明授权

US08482355B2 Power amplifier 有权
标题翻译：功率放大器
公开(公告)号：US08482355B2
公开(公告)日：2013-07-09
申请号：US13223738
申请日：2011-09-01
申请人： Byeong Hak Jo , Yoo Sam Na , Hyeon Seok Hwang , Moon Suk Jeong , Gyu Suck Kim , Moon Sun Kim
发明人： Byeong Hak Jo , Yoo Sam Na , Hyeon Seok Hwang , Moon Suk Jeong , Gyu Suck Kim , Moon Sun Kim
IPC分类号： H03F1/22
CPC分类号： H03F1/3205 , H03F1/223 , H03F3/211 , H03F2200/108 , H03F2200/18
摘要： There is provided a complementary metal oxide semiconductor (CMOS) power amplifier including: a load unit connected between an operating voltage supply terminal and an output terminal; an amplifying unit formed as a cascode structure between the load unit and a ground, amplifying a power of an input signal input through an input terminal and outputting the amplified signal through an output terminal; and a threshold voltage control unit varying a threshold voltage of the amplifying unit according to a magnitude of the input signal input through the input terminal.
摘要翻译：提供了一种互补金属氧化物半导体（CMOS）功率放大器，包括：连接在工作电压源端子和输出端子之间的负载单元; 放大单元，其形成为负载单元和地之间的共源共栅结构，放大通过输入端输入的输入信号的功率，并通过输出端输出放大的信号; 以及阈值电压控制单元，根据通过输入端子输入的输入信号的大小来改变放大单元的阈值电压。

6. 发明授权

US08018285B2 Step variable gain amplifier 有权
标题翻译：步进可变增益放大器
公开(公告)号：US08018285B2
公开(公告)日：2011-09-13
申请号：US12614279
申请日：2009-11-06
申请人： Moon Sun Kim , Yoo Sam Na
发明人： Moon Sun Kim , Yoo Sam Na
IPC分类号： H03G3/30
CPC分类号： H03G1/0088 , H03F1/32 , H03F3/72 , H03F2200/211 , H03F2200/27 , H03F2200/294 , H03F2200/451 , H03F2203/7206 , H03F2203/7215 , H03F2203/7236 , H03G1/0029
摘要： Disclosed is a step variable gain amplifier for linearly amplifying a signal received from an antenna. The step variable gain amplifier includes: an amplification unit for converting and amplifying a voltage component of a received signal into a current voltage according to a step amplification control signal; a controller for generating a step amplification control signal of the received signal and controlling on/off of the amplification unit according to the control signal; and an output unit connected to the amplification unit, the output unit outputting a voltage component from the signal that has been subjected to conversion into the current component and amplification processes.
摘要翻译：公开了一种用于线性放大从天线接收的信号的步进可变增益放大器。步进可变增益放大器包括：放大单元，用于根据步进放大控制信号将接收信号的电压分量转换和放大为电流电压; 控制器，用于产生接收信号的步长放大控制信号，并根据控制信号控制放大单元的导通/关断; 以及连接到所述放大单元的输出单元，所述输出单元从已经被转换成当前分量的信号和放大处理输出电压分量。

7. 发明授权

US07570935B2 Derivative superposition circuit for linearization 失效
标题翻译：用于线性化的导数叠加电路
公开(公告)号：US07570935B2
公开(公告)日：2009-08-04
申请号：US11428345
申请日：2006-06-30
申请人： Yoo Sam Na , Byung Sung Kim , Won Jin Baek , Moon Sun Kim
发明人： Yoo Sam Na , Byung Sung Kim , Won Jin Baek , Moon Sun Kim
IPC分类号： H04B1/10 , H04B1/04
CPC分类号： H03F1/3252
摘要： A derivative superposition circuit for linearization includes a first active element that is provided with first to third terminals and in which the magnitude and direction of current flowing from the second terminal to the third terminal changes on the basis of the magnitude of a voltage applied between the first and second terminals; and a second active element that is provided with first to third terminals and has complementary characteristics with the first active element. The first terminals of the first and second active elements are connected to each other so that a predetermined operational bias voltage is maintained by first and second power supplies through a first impedance, and are connected to an input end through a second impedance. The third terminals of the first and second active elements are connected to an output end, and the second terminals of the first and second active elements are connected to the second power supply through a third impedance.
摘要翻译：用于线性化的导数叠加电路包括设置有第一至第三端子的第一有源元件，并且其中从第二端子流到第三端子的电流的大小和方向基于施加在第二端子之间的电压的大小而变化第一和第二终端; 以及设置有第一至第三端子并且与第一有源元件具有互补特性的第二有源元件。第一和第二有源元件的第一端子彼此连接，使得通过第一阻抗由第一和第二电源维持预定的操作偏置电压，并且通过第二阻抗连接到输入端。第一和第二有源元件的第三端子连接到输出端，并且第一和第二有源元件的第二端子通过第三阻抗连接到第二电源。

8. 发明申请

US20090021331A1 STEP ATTENUATOR 有权
标题翻译：踏步器
公开(公告)号：US20090021331A1
公开(公告)日：2009-01-22
申请号：US12140980
申请日：2008-06-17
申请人： Hyeon Seok Hwang , Yoo Sam Na , Moon Sun Kim , Byeong Hak Jo , Kyoung Seok Park
发明人： Hyeon Seok Hwang , Yoo Sam Na , Moon Sun Kim , Byeong Hak Jo , Kyoung Seok Park
IPC分类号： H03H11/24
CPC分类号： H03H7/25
摘要： There is provided a step attenuator having two Pi-type attenuators and one bridged-T type attenuator that share some resistors. The step attenuator is used to prevent a reduction in frequency range caused by use of MOS transistors and reduce attenuation of signal power and frequency band by the MOS transistors, thereby obtaining a low attenuation value and reducing input and output mismatch.
摘要翻译：提供了具有两个Pi型衰减器和一个共享一些电阻器的一个桥接T型衰减器的阶跃衰减器。步进衰减器用于防止使用MOS晶体管引起的频率范围的降低，并减少MOS晶体管对信号功率和频带的衰减，从而获得低衰减值并降低输入和输出失配。

9. 发明授权

US07973606B2 Fractional-N frequency synthesizer and method thereof 有权
标题翻译：分数N频率合成器及其方法
公开(公告)号：US07973606B2
公开(公告)日：2011-07-05
申请号：US12563903
申请日：2009-09-21
申请人： Yoo Hwan Kim , Yoo Sam Na , Byeong Hak Jo
发明人： Yoo Hwan Kim , Yoo Sam Na , Byeong Hak Jo
IPC分类号： H03L7/06 , H03L7/08 , H03L7/085 , H03L7/087 , H03L7/18
CPC分类号： H03L7/1976 , H03L7/087
摘要： The present relates to a fractional-N frequency synthesizer improving noise characteristics and a method thereof. The fractional-N frequency synthesizer includes a reference oscillator that generates a reference frequency signal; a sigma-delta modulator that generates a desired decimal value based on the reference frequency signal; a divider that divides a voltage controlled oscillation frequency signal; first to M phase/frequency detectors that detect a difference in phase and frequency between the reference frequency signal and the divided voltage controlled oscillation frequency signal; first to M charge pumps that are connected to each of the phase/frequency detectors in series and charges or pumps charge amount according to output signals from each of the phase/frequency detectors; a loop filter that controls the amount of supplied current based on output signals from the charge pumps to filter low-pass frequency components; and a voltage controlled oscillator that is oscillated in response to the output signal from the loop filter and generates voltage controlled oscillation frequency signals.
摘要翻译：本发明涉及一种提高噪声特性的分数N频率合成器及其方法。分数N频率合成器包括产生参考频率信号的参考振荡器; 基于所述参考频率信号产生所需十进制值的Σ-Δ调制器; 分压器，其分压电压控制的振荡频率信号; 首先检测参考频率信号和分压电压控制振荡频率信号之间的相位和频率差异的M相/频率检测器; 首先对M个串联的每个相位/频率检测器的泵进行充电，并根据来自每个相位/频率检测器的输出信号对电荷或泵充电量; 环路滤波器，其基于来自电荷泵的输出信号来控制供电电流量以滤除低通频率分量; 以及响应于来自环路滤波器的输出信号而振荡并产生压控振荡频率信号的压控振荡器。

10. 发明申请

US20100308920A1 WIDE-BAND AMPLIFIER CIRCUIT WITH IMPROVED GAIN FLATNESS 有权
标题翻译：具有改进增益平滑度的宽带放大器电路
公开(公告)号：US20100308920A1
公开(公告)日：2010-12-09
申请号：US12620151
申请日：2009-11-17
申请人： Moon Suk JEONG , Yoo Sam Na
发明人： Moon Suk JEONG , Yoo Sam Na
IPC分类号： H03F3/68
CPC分类号： H03F1/42 , H03F2200/36
摘要： There is provided a wide-band amplifier circuit with improved gain flatness. The wide-band amplifier circuit includes a first resonant load unit connected to an operating power terminal, providing a preset first load, and forming a preset first resonant point, a second resonant load unit connected to the operating power terminal, providing a preset second load, and forming a second resonant point set to a frequency different from the first resonant point; a first amplification unit receiving operating power via the first load of the first resonant load unit, having an amplification band characteristic determined according to the first resonant point of the first resonant load unit, and amplifying an input signal; and a second amplification unit receiving operating power via the second load, having an amplification band characteristic determined according to the second resonant point, and amplifying an input signal from the first amplification unit.
摘要翻译：提供了具有改善的增益平坦度的宽带放大器电路。宽带放大器电路包括连接到工作电源端子的第一谐振负载单元，提供预设的第一负载，以及形成预设的第一谐振点，连接到工作电源端子的第二谐振负载单元，提供预设的第二负载并且形成设置成与所述第一谐振点不同的频率的第二谐振点; 第一放大单元，经由所述第一谐振负载单元的第一负载接收具有根据所述第一谐振负载单元的所述第一谐振点确定的放大带特性并且放大输入信号的工作电力; 以及第二放大单元，经由所述第二负载接收工作电力，具有根据所述第二谐振点确定的放大频带特性，以及放大来自所述第一放大单元的输入信号。

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