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公开(公告)号：US6121825A
公开(公告)日：2000-09-19
申请号：US92357
申请日：1998-06-05
摘要： In a tunable recursive filter implemented in a microwave monolithic integrated circuit (MMIC), a second-order recursive filter included two first order filters, having first and second transmission lines, respectively, connected in parallel. An amplifying unit having a cascode amplifier is arranged in a forward path shared by the two first-order filters. A combiner receives an input signal and a first and second feedback signals fed back through the first and second transmission lines, respectively, and combines such signals to output a combined signal. The amplifying unit amplifies the combined signal and outputs an amplified signal. A divider divides the amplified signal from the amplifying unit, outputs a first portion of the divided signal, and feeds back a second and third portion of the divided signal through the first and second transmission lines.
摘要翻译： 在微波单片集成电路（MMIC）实现的可调递归滤波器中，二阶递归滤波器包括两个一阶滤波器，分别具有并联连接的第一和第二传输线。 具有共源共栅放大器的放大单元被布置在由两个一阶滤波器共享的前向路径中。 组合器分别接收输入信号和通过第一和第二传输线反馈的第一和第二反馈信号，并组合这些信号以输出组合信号。 放大单元放大组合信号并输出放大信号。 分频器分离放大单元的放大信号，输出分频信号的第一部分，并通过第一和第二传输线反馈分频信号的第二和第三部分。
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公开(公告)号：US06028496A
公开(公告)日：2000-02-22
申请号：US90047
申请日：1998-06-03
CPC分类号： H03H11/50 , H03H11/486
摘要： An active inductor which consumes less direct current (DC) power and is stably biased, has a smaller number of bias pins, a higher quality factor (Q) and fewer controlling ports, than that of the prior art, is realized in metal semiconductor field effect transistor or bipolar transistor technology. The active inductor includes an inverting amplifier of a common source (common emitter) type, which inversely amplifies an input signal and outputs the amplified signal as an output signal, a non-inverting amplifier of a common gate (common base) cascode type, which non-inversely amplifies the output signal and the amplified signal as the input signal, a capacitor connected between the input signal and a reference signal, and a biasing portion for biasing the inverting amplifier and the non-inverting amplifier.
摘要翻译： 消耗更少的直流（DC）功率并且被稳定偏置的有源电感器具有较少数量的偏置引脚，比现有技术更高的质量因子（Q）和更少的控制端口在金属半导体领域中实现 效应晶体管或双极晶体管技术。 有源电感器包括公共源（公共发射极）类型的反相放大器，其反相放大输入信号并输出放大的信号作为输出信号，公共栅极（公共基极）共射型类型的非反相放大器，其中 将输出信号和放大信号作为输入信号反相放大，连接在输入信号和参考信号之间的电容器和用于偏置反相放大器和非反相放大器的偏置部分。
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3.发明授权公开(公告)号：US07586375B2
公开(公告)日：2009-09-08
申请号：US12146308
申请日：2008-06-25
申请人： Tae Wook Kim , Bonkee Kim , Kwyro Lee
发明人： Tae Wook Kim , Bonkee Kim , Kwyro Lee
IPC分类号： H03F3/68
CPC分类号： H03F3/505 , H03F1/3205 , H03F1/3211 , H03F3/345 , H03F2200/453 , H03F2203/5042
摘要： The present invention relates to improved linearity of an active circuit, and more particularly, to an active circuit having improved linearity using a main circuit unit and an assistant circuit unit. According to the present invention, the common gate circuit includes a main circuit unit consisting of a common gate circuit having a drain terminal through which an input signal is output as an output signal, an assistant circuit unit having a common gate circuit in order to assist the linearity of the main circuit unit, a biasing unit for biasing the main circuit unit and the assistant circuit unit, respectively, and load stages connected to output stages of the main circuit unit and the assistant circuit unit, wherein the output stages of the main circuit unit and the assistant circuit unit are coupled to each other.
摘要翻译： 本发明涉及有源电路的改进的线性度，更具体地，涉及使用主电路单元和辅助电路单元具有改进的线性度的有源电路。 根据本发明，公共门电路包括主电路单元，该主电路单元由具有输出信号作为输出信号输出的漏极端子的公共门电路组成，具有公共门电路的辅助电路单元以辅助 主电路单元的线性度，分别用于偏置主电路单元和辅助电路单元的偏置单元和连接到主电路单元和辅助电路单元的输出级的负载级，其中主电路单元和辅助电路单元的输出级 电路单元和辅助电路单元彼此耦合。
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公开(公告)号：US07525386B2
公开(公告)日：2009-04-28
申请号：US12146299
申请日：2008-06-25
申请人： Tae Wook Kim , Bonkee Kim , Kwyro Lee
发明人： Tae Wook Kim , Bonkee Kim , Kwyro Lee
IPC分类号： H03F3/68
CPC分类号： H03F3/505 , H03F1/3205 , H03F1/3211 , H03F3/345 , H03F2200/453 , H03F2203/5042
摘要： The present invention relates to improved linearity of an active circuit, and more particularly, to an active circuit having improved linearity using a main circuit unit and an assistant circuit unit. According to the present invention, the common gate circuit includes a main circuit unit consisting of a common gate circuit having a drain terminal through which an input signal is output as an output signal, an assistant circuit unit having a common gate circuit in order to assist the linearity of the main circuit unit, a biasing unit for biasing the main circuit unit and the assistant circuit unit, respectively, and load stages connected to output stages of the main circuit unit and the assistant circuit unit, wherein the output stages of the main circuit unit and the assistant circuit unit are coupled to each other.
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5.发明授权Direct conversion receiver using vertical bipolar junction transistor available in deep n-well CMOS technology 失效直接转换接收机采用垂直双极结型晶体管，可用于深n阱CMOS技术公开(公告)号：US07088168B2
公开(公告)日：2006-08-08
申请号：US10504366
申请日：2003-07-11
IPC分类号： G06G7/12
CPC分类号： H04B1/30 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D7/1483 , H03D2200/0047
摘要： This invention is about the direct conversion receiver. It is excellent the receiving sensitivity that DC off-set, matching characteristics of the relationship of I/Q circuits and noise characteristics are improved. In order to achieve this purpose, the direct conversion receiver uses vertical bipolar junction transistor available in standard triple-well CMOS technology in the switching element of mixer and base-band analog circuits. Furthermore, as using the passive mixer in the other practical example of this invention, this invention controls the occurrence of l/f noise. As using the vertical bipolar junction transistor available in standard triple-well CMOS in the base-band analog circuits, this invention realizes the direct conversion receiver that DC off-set, matching characteristics of the relationship of I/Q circuit and noise characteristics are improved.
摘要翻译： 本发明涉及直接转换接收机。 DC偏移的接收灵敏度优异，I / Q电路和噪声特性的匹配特性得到改善。 为了实现这一目的，直接转换接收器在混频器和基带模拟电路的开关元件中使用标准三阱CMOS技术中的垂直双极结型晶体管。 此外，在本发明的其他实施例中使用无源混频器时，本发明控制l / f噪声的发生。 由于采用基带模拟电路中标准三阱CMOS中的垂直双极结型晶体管，本发明实现了直流偏移直流转换接收器，I / Q电路与噪声特性的匹配特性得到改善 。
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6.发明授权公开(公告)号：US07602227B2
公开(公告)日：2009-10-13
申请号：US11128351
申请日：2005-05-13
申请人： Tae Wook Kim , Bonkee Kim , Kwyro Lee
发明人： Tae Wook Kim , Bonkee Kim , Kwyro Lee
IPC分类号： G06G7/12
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1458 , H03D7/1491 , H03D2200/0043 , H03D2200/0047 , H03F1/3211 , H03F3/45183
摘要： The present invention relates to a differential amplifier and a mixer for improving the linearity. The differential amplifier circuit according to this present invention, includes first and second load stages each having a predetermined voltage value, a main differential amplifier unit having a first differential stage that forms a differential pair in such a way as to amplify a difference between a first input voltage and a second input voltage, and a constant current source, which has a predetermined current driving capability and is connected serially between a power source voltage terminal and a ground terminal, and a auxiliary differential amplifier unit having a second differential stage that forms a differential pair in such a way as to amplify a difference between a third input voltage and a fourth input voltage connected between the first load stage and a second load stage, and the ground, respectively.
摘要翻译： 本发明涉及一种用于提高线性度的差分放大器和混频器。 根据本发明的差分放大器电路包括各自具有预定电压值的第一和第二负载级，主差分放大器单元具有形成差分对的第一差分级，以便放大第一和第二负载级之间的差异 输入电压和第二输入电压，以及恒定电流源，其具有预定的电流驱动能力并且串联地连接在电源电压端子和接地端子之间;以及辅助差分放大器单元，具有形成第二差分级的辅助差分放大器单元 差分对以分别放大连接在第一负载级与第二负载级之间的第三输入电压与第四输入电压之间的差的方式和地。
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公开(公告)号：US07408411B2
公开(公告)日：2008-08-05
申请号：US11201429
申请日：2005-08-11
申请人： Tae Wook Kim , Bonkee Kim , Kwyro Lee
发明人： Tae Wook Kim , Bonkee Kim , Kwyro Lee
IPC分类号： H03G3/00
CPC分类号： H03G1/0088
摘要： Disclosed is a high linearity programmable gain amplifier using a switch, including an attenuating portion for controlling a gain of a signal and an amplifying portion having a first amplifying part and a second amplifying part, for amplifying an input signal and outputting a signal amplified, wherein the first amplifying part has a first amplifier for amplifying an input signal and a first switch for activating the first amplifier and the second amplifying part has a second amplifier for amplifying an input signal and a second switch for activating the second amplifier.
摘要翻译： 公开了一种使用开关的高线性可编程增益放大器，包括用于控制信号增益的衰减部分和具有第一放大部分和第二放大部分的放大部分，用于放大输入信号并输出放大的信号，其中 第一放大部分具有用于放大输入信号的第一放大器和用于激活第一放大器的第一开关，第二放大部分具有用于放大输入信号的第二放大器和用于启动第二放大器的第二开关。
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公开(公告)号：US07155180B2
公开(公告)日：2006-12-26
申请号：US10349914
申请日：2003-01-24
申请人： Youngjin Kim , Kwyro Lee
发明人： Youngjin Kim , Kwyro Lee
IPC分类号： H04Q7/00
摘要： A mixer circuit with improving characteristic of image rejection by compensating mismatch in a spurious rejection mixer circuit (SRM) used in a transmitter is provided. The mixer circuit according to the present invention comprises an up conversion unit for modulating a base-band input signal to a RF signal, a down conversion unit for converting an output signal from the up conversion unit to a base-band output signal, mismatch estimating means for determining a mismatch compensation value by which spurious component in an output signal from the down conversion unit is minimized, wherein the spurious component results from mismatch in the up conversion unit, and mismatch compensating means for compensating the mismatch in the up conversion unit by using the mismatch compensation value determined by the mismatch estimating means.
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公开(公告)号：US07031686B2
公开(公告)日：2006-04-18
申请号：US09952102
申请日：2001-09-13
申请人： Youngjin Kim , Kwyro Lee
发明人： Youngjin Kim , Kwyro Lee
IPC分类号： H04B1/18
CPC分类号： H03D3/009
摘要： An image rejection mixer (IRM) for rejecting signals having image frequency and, more particularly, a mixer for rejecting signals of image frequency by using mismatch compensation is provided. The image rejection mixer comprises: first and second mixers; first and second converting means, each of which transforms each output of the first and second mixers to digital signal; third and fourth mixers, each of which mixes output of the first converting means with each of second local oscillation in-phase signal and quadrature-phase signal, respectively; fifth and sixth mixers, each of which mixes output of the second converting means with each of second local oscillation in-phase signal and quadrature-phase signal, respectively; means for subtracting; means for adding; and means for compensating gain-mismatch between the first and second mixers.
摘要翻译： 提供了用于拒绝具有图像频率的信号的图像抑制混频器（IRM），更具体地，提供了通过使用不匹配补偿来拒绝图像频率的信号的混合器。 镜像抑制混频器包括：第一和第二混频器; 第一和第二转换装置，每个转换装置将第一和第二混频器的每个输出转换成数字信号; 第三和第四混频器，每个混频器分别将第一转换装置的输出与第二本地振荡同相信号和正交相位信号中的每一个混合; 第五和第六混频器，每个混频器分别将第二转换装置的输出与第二本地振荡同相信号和正交相位信号中的每一个混合; 减法手段 添加方式 以及用于补偿第一和第二混频器之间的增益失配的装置。
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公开(公告)号：US06933779B2
公开(公告)日：2005-08-23
申请号：US10633589
申请日：2003-08-05
申请人： Kwyro Lee , Tae Wook Kim
发明人： Kwyro Lee , Tae Wook Kim
CPC分类号： H03G1/0088 , H03F3/72 , H03F2200/294 , H03F2200/372 , H03F2203/7236
摘要： The present invention is related to a variable gain low noise amplifier that optimizes input matching, gain and noise characteristics, and linearity. The variable gain low noise amplifier according to an embodiment of the present invention includes a first amplifying cell that operates in a high gain mode, a second amplifying cell that operates in a low gain mode, a selectively matching circuit, and a first short-circuit means. The variable gain low noise amplifier according to the present invention selects the best operation in each gain mode so that the circuit operated in high and low gain modes does not affect a load of another circuit.
摘要翻译： 本发明涉及优化输入匹配，增益和噪声特性以及线性度的可变增益低噪声放大器。 根据本发明实施例的可变增益低噪声放大器包括以高增益模式操作的第一放大单元，以低增益模式操作的第二放大单元，选择性匹配电路和第一短路 手段。 根据本发明的可变增益低噪声放大器在每个增益模式中选择最佳操作，使得以高和低增益模式操作的电路不影响另一电路的负载。
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