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1. 发明授权

KR100679259B1 A DIFFERENTIAL VOLTAGE CONTROLLED OSCILLATOR WITH BACK-GATE FEEDBACK 无效
标题翻译：具有反馈门反馈的差分电压控制振荡器
公开(公告)号：KR100679259B1
公开(公告)日：2007-01-30
申请号：KR20060011791
申请日：2006-02-07
申请人： RES & IND COOPERATION GROUP
发明人： OH NAM JIN , LEE SANG GUG
IPC分类号： H03B5/12 , H03B5/08
CPC分类号： H03B5/1296 , H03B5/1212 , H03B5/1228 , H03B5/1243 , H03B2200/009 , H03B2201/0208
摘要： A differential voltage controlled oscillator using a back-gate feedback is provided to lower a phase noise in comparison with a conventional voltage controlled oscillator, and output an oscillation frequency having a higher frequency than a source feedback or gate feedback voltage controlled oscillator by performing the feedback of a drain voltage of a MOS transistor through a transformer. A differential voltage controlled oscillator using a back-gate feedback includes first and second oscillation circuits. A first switching transistor has a gate, a source connected to a current source, a drain which outputs a first differential signal, and a back-gate. One end of a first coil is connected to the drain. The other end of the first coil is connected to a ground. One end of a second coil is connected to a voltage power. The other end of the second coil is connected to the back-gate. The drain voltage inputted to the first coil is fed back to the back-gate through the second coil. A first variable capacitor generates an oscillation signal with the second coil, and applies the oscillation signal to the back-gate. The second oscillation circuit has a second switching transistor, a second transformer, and a second variable capacitor of the same construction with the first switching transistor, the first transformer, and the first variable capacitor of the first oscillation circuit. The gate of the first switching transistor is connected to a drain of the second switching transistor. A gate of the second switching transistor is connected to the drain of the first switching transistor.
摘要翻译：与传统的压控振荡器相比，提供了使用背栅反馈的差分压控振荡器来降低相位噪声，并通过执行反馈来输出具有比源反馈或门反馈压控振荡器更高的频率的振荡频率通过变压器的MOS晶体管的漏极电压。使用背栅极反馈的差分压控振荡器包括第一和第二振荡电路。第一开关晶体管具有栅极，连接到电流源的源极，输出第一差分信号的漏极和后栅极。第一线圈的一端连接到漏极。第一线圈的另一端连接到地面。第二线圈的一端连接到电压电源。第二线圈的另一端连接到后门。输入到第一线圈的漏极电压通过第二线圈反馈到后栅极。第一可变电容器利用第二线圈产生振荡信号，并将振荡信号施加到背栅极。第二振荡电路具有与第一振荡电路的第一开关晶体管，第一变压器和第一可变电容器相同结构的第二开关晶体管，第二变压器和第二可变电容器。第一开关晶体管的栅极连接到第二开关晶体管的漏极。第二开关晶体管的栅极连接到第一开关晶体管的漏极。

2. 发明授权

KR100756031B1 QUADRATURE VOLTAGE CONTROLLED OSCILLATOR COMPRISING COUPLING CAPACITOR 无效
标题翻译：包含耦合电容器的正弦电压控制振荡器
公开(公告)号：KR100756031B1
公开(公告)日：2007-09-05
申请号：KR20060032514
申请日：2006-04-10
申请人： SAMSUNG ELECTRO MECH , RES & IND COOPERATION GROUP
发明人： KIM JEONG HOON , LEE SANG GUG , OH NAM JIN , YUN SEOK JU , KIM EUNG JU , PARK TAH JOON
IPC分类号： H03B5/12
CPC分类号： H03B27/00 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B2200/0078
摘要： A four-phase voltage controlling oscillator having a coupling capacitor is provided to improve the property of phase noises by improving the nonlinear property of a transistor. A four-phase voltage controlling oscillator having a coupling capacitor includes a first delay cell(610) and a second delay cell(630). The first delay cell(610) outputs a first phase signal and a second phase signal having a different phase with each other. The second delay cell(630) outputs a third phase signal and a fourth phase signal having a different phase each other. The first delay cell(610) has a first differential motion voltage controlling oscillator(615) and a first coupling unit(620). The first differential motion voltage controlling oscillator(615) outputs the first phase signal and the second phase signal. The first coupling unit(620) makes the outputted phase signals coupled. The second delay cell(630) has a second differential motion voltage controlling oscillator(635) and a second coupling unit(640). The second differential motion voltage controlling oscillator(635) outputs the third phase signal and the fourth phase signal. The second coupling unit(640) makes the outputted phase signals coupled.
摘要翻译：提供具有耦合电容器的四相电压控制振荡器，以通过改善晶体管的非线性特性来改善相位噪声的性质。具有耦合电容器的四相电压控制振荡器包括第一延迟单元（610）和第二延迟单元（630）。第一延迟单元（610）输出具有彼此不同相位的第一相位信号和第二相位信号。第二延迟单元（630）输出具有彼此不同相位的第三相位信号和第四相位信号。第一延迟单元（610）具有第一差分运动电压控制振荡器（615）和第一耦合单元（620）。第一差分运动电压控制振荡器（615）输出第一相位信号和第二相位信号。第一耦合单元（620）使输出的相位信号耦合。第二延迟单元（630）具有第二差分运动电压控制振荡器（635）和第二耦合单元（640）。第二差分运动电压控制振荡器（635）输出第三相位信号和第四相位信号。第二耦合单元（640）使输出的相位信号耦合。

3. 发明授权

KR100737630B1 AN OFFSET LOCAL OSCILLATOR WITHOUT USING A FREQUENCY DIVIDER 无效
标题翻译：不使用频率分路器的偏置本地振荡器
公开(公告)号：KR100737630B1
公开(公告)日：2007-07-03
申请号：KR20060006949
申请日：2006-01-23
申请人： RES & IND COOPERATION GROUP
发明人： OH NAM JIN , LEE SANG GUG
IPC分类号： H03B5/08
CPC分类号： H03B27/00 , H03B5/1215 , H03B5/1228 , H03B5/1243
摘要： An offset local oscillator without using a frequency divider is provided to reduce power consumption by not using the frequency divider and to reduce influence of mismatching of I/Q by outputting the signal with a low frequency in a quadrature phase voltage controlled oscillator. An offset local oscillator without using a frequency divider includes a quadrature phase voltage controlled oscillator(200), a multi phase filter(202), and single side band frequency converters(203,204). The quadrature phase voltage controlled oscillator(200) generates an I/Q(In-phase/Quadrature phase) signal having a 1/3 frequency of a local oscillation frequency, and a differential second harmonic wave signal having a 2/3 frequency of the local oscillation frequency. The multi phase filter(202) transforms the differential second harmonic wave signal inputted from the quadrature voltage controlled oscillator(200) into the I/Q signal. The single side band frequency converters(203,204) receive the I/Q signal having the 1/3 frequency of the local oscillation frequency from the quadrature phase voltage controlled oscillator(200), and receive the I/Q signal having the 2/3 frequency of the local oscillation frequency from the multi phase filter(202). The single side band frequency converters(203,204) output the I/Q signal having the local oscillation frequency.
摘要翻译：提供了不使用分频器的偏移本地振荡器，通过不使用分频器来降低功耗，并通过在正交相位压控振荡器中输出低频信号来减少I / Q失配的影响。不使用分频器的偏移本机振荡器包括正交相压控振荡器（200），多相滤波器（202）和单侧频带变频器（203,204）。正交相压控振荡器（200）产生具有本地振荡频率的1/3频率的I / Q（同相/正交相位）信号，以及具有2/3频率的差分二次谐波信号本地振荡频率。多相滤波器（202）将从正交压控振荡器（200）输入的差分二次谐波信号变换成I / Q信号。单侧频带变频器（203,204）从正交相位压控振荡器（200）接收具有本地振荡频率的1/3频率的I / Q信号，并接收具有2/3频率的I / Q信号的来自多相滤波器（202）的本地振荡频率。单侧频带变频器（203,204）输出具有本地振荡频率的I / Q信号。

4. 发明公开

KR20060078600A QUADRATURE VOLTAGE CONTROLLED OSCILLATOR 无效
标题翻译：正弦电压控制振荡器
公开(公告)号：KR20060078600A
公开(公告)日：2006-07-05
申请号：KR20060054477
申请日：2006-06-16
申请人： RES & IND COOPERATION GROUP
发明人： LEE SANG GUG , YUN SEOK JU , OH NAM JIN
IPC分类号： H03B5/08 , H03B5/12
CPC分类号： H03B27/00 , H03B5/1212 , H03B5/1218 , H03B5/1225 , H03B5/1231 , H03B2200/009
摘要： 본 발명은 4위상 전압제어발진기에 관한 것으로서, 특히 공진부 및 한 쌍의 차동 스위칭 트랜지스터를 갖는 첫 번째 및 두 번째 전압제어발진기와, 차동 스위칭 트랜지스터에 각각 직렬로 연결되며 기설정된 위상 신호에 응답하여 온되는 다수개의 커플링 트랜지스터와, 커플링 트랜지스터에 각각 병렬로 연결되며 접지에 연결된 다수개의 커플링 커패시터를 포함한다. 그러므로, 본 발명은 차동 스위칭 트랜지스터와 커플링 트랜지스터 사이에 커플링 커패시터를 접지나 공통 노드로 연결함으로써, 위상 잡음 및 위상 에러 특성을 동시에 개선시킬 수 있으며 전력 소모량도 줄일 수 있는 장점을 가진다.
4위상, 전압제어발진기, 커플링 트랜지스터, 커플링 커패시터

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