公开(公告)号：US07348849B2

公开(公告)日：2008-03-25

申请号：US11497461

申请日：2006-08-01

申请人： Seon Ho Han ,  Hyun Kyu Yu

发明人： Seon Ho Han ,  Hyun Kyu Yu

IPC分类号： H03F3/45 ,  H03G3/10

CPC分类号： H03G1/007 ,  H03F1/342 ,  H03F3/211 ,  H03F3/45206 ,  H03F3/45659 ,  H03F2200/15 ,  H03F2203/21154 ,  H03F2203/45008 ,  H03F2203/45302 ,  H03G7/06

摘要： A complementary metal oxide semiconductor (CMOS) variable gain amplifier has a wider decibel-linear gain variation characteristic with respect to a control voltage when a signal is amplified. The variable gain amplifier includes: a bias input circuit for supplying a current corresponding to a bias voltage; an operation region combination and feedback circuit connected to the bias input circuit and combining at least two amplifiers by feedback in response to a control voltage, each amplifier having a decibel-linear characteristic in saturation and triode regions of a complementary metal oxide semiconductor (CMOS); and a bias output circuit connected to the bias input circuit, and outputting bias current controlled by the operation region combination and feedback circuit.

摘要翻译： 互补金属氧化物半导体（CMOS）可变增益放大器在信号被放大时相对于控制电压具有更宽的分贝线性增益变化特性。 可变增益放大器包括：偏置输入电路，用于提供对应于偏置电压的电流; 连接到偏置输入电路的操作区域组合和反馈电路，并且通过响应于控制电压的反馈来组合至少两个放大器，每个放大器在互补金属氧化物半导体（CMOS）的饱和度和三极管区域中具有分贝线性特性， ; 以及偏置输出电路，连接到偏置输入电路，并输出由操作区域组合和反馈电路控制的偏置电流。

公开(公告)号：US20070132513A1

公开(公告)日：2007-06-14

申请号：US11497461

申请日：2006-08-01

申请人： Seon Ho Han ,  Hyun Kyu Yu

发明人： Seon Ho Han ,  Hyun Kyu Yu

IPC分类号： H03G3/10

CPC分类号： H03G1/007 ,  H03F1/342 ,  H03F3/211 ,  H03F3/45206 ,  H03F3/45659 ,  H03F2200/15 ,  H03F2203/21154 ,  H03F2203/45008 ,  H03F2203/45302 ,  H03G7/06

摘要： A complementary metal oxide semiconductor (CMOS) variable gain amplifier has a wider decibel-linear gain variation characteristic with respect to a control voltage when a signal is amplified. The variable gain amplifier includes: a bias input circuit for supplying a current corresponding to a bias voltage; an operation region combination and feedback circuit connected to the bias input circuit and combining at least two amplifiers by feedback in response to a control voltage, each amplifier having a decibel-linear characteristic in saturation and triode regions of a complementary metal oxide semiconductor (CMOS); and a bias output circuit connected to the bias input circuit, and outputting bias current controlled by the operation region combination and feedback circuit.

摘要翻译： 互补金属氧化物半导体（CMOS）可变增益放大器在信号被放大时相对于控制电压具有更宽的分贝线性增益变化特性。 可变增益放大器包括：偏置输入电路，用于提供对应于偏置电压的电流; 连接到偏置输入电路的操作区域组合和反馈电路，并且通过响应于控制电压的反馈来组合至少两个放大器，每个放大器在互补金属氧化物半导体（CMOS）的饱和度和三极管区域中具有分贝线性特性， ; 以及偏置输出电路，连接到偏置输入电路，并输出由操作区域组合和反馈电路控制的偏置电流。

公开(公告)号：US20070030080A1

公开(公告)日：2007-02-08

申请号：US10572901

申请日：2004-06-22

申请人： Seon Ho Han ,  Jin Ho Han ,  Mun Yang Park

发明人： Seon Ho Han ,  Jin Ho Han ,  Mun Yang Park

IPC分类号： H03L7/00

CPC分类号： H03B5/1841 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/124 ,  H03B5/1265 ,  H03B5/1293

摘要： Provided are a voltage controlled digital analog oscillator and a frequency synthesizer using the same, the oscillator comprising an oscillator having a frequency of an output signal being determined by a voltage inputted to an analog input end and a digital value inputted to a digital input end; and a digital tuner for comparing the voltage inputted to the analog input end to first and second threshold voltages and changing the digital value inputted to the digital input end according to the result, whereby it is possible to obtain a broadband frequency output with less noise.

摘要翻译： 提供一种电压控制数字模拟振荡器和使用该振荡器的频率合成器，该振荡器包括具有由输入到模拟输入端的电压和输入到数字输入端的数字值确定输出信号频率的振荡器; 以及数字调谐器，用于将输入到模拟输入端的电压与第一和第二阈值电压进行比较，并根据结果改变输入到数字输入端的数字值，由此可以获得具有较小噪声的宽带频率输出。

公开(公告)号：US20060132242A1

公开(公告)日：2006-06-22

申请号：US11241128

申请日：2005-09-29

申请人： Seon-Ho Han ,  Mun-Yang Park ,  Hyun-Kyu Yu

发明人： Seon-Ho Han ,  Mun-Yang Park ,  Hyun-Kyu Yu

IPC分类号： H03F3/04

CPC分类号： H03F3/193 ,  H03F1/223 ,  H03F1/26 ,  H03F1/42 ,  H03F1/56 ,  H03F2200/168 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/489

摘要： Provided is a low noise amplifier with a common source and a source degeneration, which has linearity, power gain, noise factor, and lossless input matching. The low noise amplifier includes: a first inductor having one terminal connected to an input terminal receiving a signal; a second inductor having one terminal connected to a ground; a MOS transistor having a gate connected to the first inductor, a source connected to the other terminal of the second inductor, and a drain transmitting a signal; and a variable capacitor connected between the source and gate of the MOS transistor and varying an input matching frequency at the input terminal.

摘要翻译： 提供了具有共同源极和源极退化的低噪声放大器，其具有线性度，功率增益，噪声因数和无损输入匹配。 低噪声放大器包括：第一电感器，其一端连接到接收信号的输入端; 第二电感器，其一端连接到地; MOS晶体管，具有连接到第一电感器的栅极，连接到第二电感器的另一个端子的源极和发射信号的漏极; 以及可变电容器，其连接在MOS晶体管的源极和栅极之间并改变输入端子处的输入匹配频率。