公开(公告)号：US11757405B2

公开(公告)日：2023-09-12

申请号：US17733158

申请日：2022-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunfang Zhou

IPC: H03B5/08 ,  H03B5/32

CPC classification number: H03B5/08 ,  H03B5/323 ,  H03B2201/02

Abstract: An oscillator circuit includes an amplifier including a first transconductance amplifier and a second transconductance amplifier; and a resonator including a capacitor element and an inductor element. The capacitor element includes a first capacitor and a second capacitor, the inductor element includes a tapped inductor, the tapped inductor includes a first segment of inductor and a second segment of inductor, and the first segment of inductor and the second segment of inductor are coupled using the first capacitor. The first segment of inductor includes a first terminal and a second terminal coupled to an input terminal and an output terminal of the first transconductance amplifier respectively. The second segment of inductor includes a third terminal and a fourth terminal coupled to an input terminal and an output terminal of the second transconductance amplifier, respectively.

公开(公告)号：US20140125422A1

公开(公告)日：2014-05-08

申请号：US14072807

申请日：2013-11-06

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： MITSUAKI KOYAMA ,  TAKERU MUTOH ,  MANABU ISHIKAWA

IPC: H03B5/36

CPC classification number: H03B5/362 ,  H03B5/326 ,  H03B2201/02

Abstract: A self-oscillation circuit includes an oscillating unit, an amplifying unit, and a resonator. The oscillating unit is configured to self-oscillate. The amplifying unit is configured to amplify a frequency signal oscillated at the oscillating unit and to feed back the amplified frequency signal to the oscillating unit. The resonator is disposed in an oscillation loop that includes the oscillating unit and the amplifying unit. The resonator has a resonant frequency near an oscillation frequency of the oscillating unit and has a higher Q-value than a Q-value of the oscillating unit.

Abstract translation: 自振荡电路包括振荡单元，放大单元和谐振器。 振荡单元被配置为自振荡。 放大单元被配置为放大在振荡单元处振荡的频率信号，并将放大的频率信号反馈到振荡单元。 谐振器设置在包括振荡单元和放大单元的振荡环路中。 谐振器具有接近振荡单元的振荡频率的谐振频率，并且具有比振荡单元的Q值更高的Q值。

公开(公告)号：US20120092081A1

公开(公告)日：2012-04-19

申请号：US12906017

申请日：2010-10-15

Applicant: Parag Upadhyaya ,  Vassili Kireev

Inventor： Parag Upadhyaya ,  Vassili Kireev

IPC: H03B5/12

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/124 ,  H03B5/1262 ,  H03B5/1265 ,  H03B2201/02 ,  H03B2201/0208 ,  H03B2201/0266

Abstract: A tunable resonant circuit includes first and second capacitors that provide a matched capacitance between first and second electrodes of the first and second capacitors. A deep-well arrangement includes a first well disposed within a second well in a substrate. The first and second capacitors are each disposed on the first well. Two channel electrodes of a first transistor are respectively coupled to the second electrode of the first capacitor and the second electrode of the second capacitor. Two channel electrodes of a second transistor are respectively coupled to the second electrode of the first capacitor and to ground. Two channel electrodes of the third transistor are respectively coupled to the second electrode of the second capacitor and to ground. The gate electrodes of the first, second, and third transistors are responsive to a tuning signal, and an inductor is coupled between the first electrodes of the first and second capacitors.

Abstract translation: 可调谐谐振电路包括在第一和第二电容器的第一和第二电极之间提供匹配电容的第一和第二电容器。 深井布置包括设置在基板中的第二井内的第一井。 第一和第二电容器各自设置在第一阱上。 第一晶体管的两沟道电极分别耦合到第一电容器的第二电极和第二电容器的第二电极。 第二晶体管的两沟道电极分别耦合到第一电容器的第二电极并接地。 第三晶体管的两沟道电极分别耦合到第二电容器的第二电极并接地。 第一，第二和第三晶体管的栅电极响应于调谐信号，并且电感器耦合在第一和第二电容器的第一电极之间。

公开(公告)号：US20090009257A1

公开(公告)日：2009-01-08

申请号：US11774414

申请日：2007-07-06

Applicant: Anders Emericks ,  Lars Karlsson

Inventor： Anders Emericks ,  Lars Karlsson

IPC: H03B5/08

CPC classification number: H03H5/12 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2201/02 ,  H03J2200/10

Abstract: Implementations are presented herein that relate to circuit arrangements that employ the use of a varactor.

Abstract translation: 本文中给出了涉及使用变容二极管的电路布置的实现。

公开(公告)号：US20080174361A1

公开(公告)日：2008-07-24

申请号：US12054755

申请日：2008-03-25

Applicant: Ramon A. Gomez

Inventor： Ramon A. Gomez

IPC: G05F1/10

CPC classification number: H03L7/00 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1278 ,  H03B2200/0046 ,  H03B2200/0048 ,  H03B2200/005 ,  H03B2201/02 ,  H03B2201/0208 ,  H03B2201/025 ,  H03D7/165 ,  H03D7/18 ,  H03J5/244 ,  H03J2200/10 ,  H03L7/0898 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03L7/107 ,  H03L7/1072 ,  H03L7/18

Abstract: A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit according to a capacitor control signal to perform band-select tuning of the VCO. The gain compensator compensates for the variable VCO gain by generating a charge pump reference current that is based on the same capacitor control signal that controls the fixed capacitors in the LC circuit. The gain compensator generates the charge pump reference current by replicating a reference scale current using unit current sources. The number of times the reference scale current is replicated is based on the fixed capacitance that is switched-in to the LC circuit and therefore the frequency band of the PLL. The reference scale current is generated based on a PLL control that specifics certain PLL characteristics such as reference frequency, loop bandwidth, and loop damping. Therefore, the reference pump current can be efficiently optimized for changing PLL operating conditions, in addition to compensating for variable VCO gain.

Abstract translation: 增益补偿器补偿锁相环（PLL）中变容二极管调谐电压调谐振荡器（VCO）的增益变化。 VCO包括具有多个固定电容器的并联LC电路，其可以根据电容器控制信号切换或切换出LC电路，以执行VCO的频带选择调谐。 增益补偿器通过产生基于控制LC电路中的固定电容器的相同电容器控制信号的电荷泵参考电流来补偿可变VCO增益。 增益补偿器通过使用单位电流源复制参考刻度电流来产生电荷泵参考电流。 参考比例电流复制的次数是基于切换到LC电路的固定电容，因此是PLL的频带。 参考比例电流是基于特定于参考频率，环路带宽和环路阻尼等特定PLL特性的PLL控制产生的。 因此，除了补偿可变VCO增益之外，参考泵电流可以有效地优化用于改变PLL工作条件。

公开(公告)号：US07224234B2

公开(公告)日：2007-05-29

申请号：US11314618

申请日：2005-12-21

Applicant: Ramon A. Gomez

Inventor： Ramon A. Gomez

IPC: H03L7/00

CPC classification number: H03L7/00 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1278 ,  H03B2200/0046 ,  H03B2200/0048 ,  H03B2200/005 ,  H03B2201/02 ,  H03B2201/0208 ,  H03B2201/025 ,  H03D7/165 ,  H03D7/18 ,  H03J5/244 ,  H03J2200/10 ,  H03L7/0898 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03L7/107 ,  H03L7/1072 ,  H03L7/18

Abstract: A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit according to a capacitor control signal to perform band-select tuning of the VCO. The gain compensator compensates for the variable VCO gain by generating a charge pump reference current that is based on the same capacitor control signal that controls the fixed capacitors in the LC circuit. The gain compensator generates the charge pump reference current by replicating a reference scale current using unit current sources. The number of times the reference scale current is replicated is based on the fixed capacitance that is switched-in to the LC circuit and therefore the frequency band of the PLL. The reference scale current is generated based on a PLL control that specifics certain PLL characteristics such as reference frequency, loop bandwidth, and loop damping. Therefore, the reference pump current can be efficiently optimized for-changing PLL operating conditions, in addition to compensating for variable VCO gain.

Abstract translation: 增益补偿器补偿锁相环（PLL）中变容二极管调谐电压调谐振荡器（VCO）的增益变化。 VCO包括具有多个固定电容器的并联LC电路，其可以根据电容器控制信号切换或切换出LC电路，以执行VCO的频带选择调谐。 增益补偿器通过产生基于控制LC电路中的固定电容器的相同电容器控制信号的电荷泵参考电流来补偿可变VCO增益。 增益补偿器通过使用单位电流源复制参考刻度电流来产生电荷泵参考电流。 参考比例电流复制的次数是基于切换到LC电路的固定电容，因此是PLL的频带。 参考比例电流是基于特定于参考频率，环路带宽和环路阻尼等特定PLL特性的PLL控制产生的。 因此，除了补偿可变VCO增益之外，参考泵电流可以有效地优化用于改变PLL工作条件。

公开(公告)号：US07119624B2

公开(公告)日：2006-10-10

申请号：US11096154

申请日：2005-03-30

Applicant: Ramon A. Gomez

Inventor： Ramon A. Gomez

IPC: H03L7/08

CPC classification number: H03L7/00 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1278 ,  H03B2200/0046 ,  H03B2200/0048 ,  H03B2200/005 ,  H03B2201/02 ,  H03B2201/0208 ,  H03B2201/025 ,  H03D7/165 ,  H03D7/18 ,  H03J5/244 ,  H03J2200/10 ,  H03L7/0898 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03L7/107 ,  H03L7/1072 ,  H03L7/18

Abstract: A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit according to a capacitor control signal to perform band-select tuning of the VCO. The gain compensator compensates for the variable VCO gain by generating a charge pump reference current that is based on the same capacitor control signal that controls the fixed capacitors in the LC circuit. The gain compensator generates the charge pump reference current by replicating a reference scale current using unit current sources. The number of times the reference scale current is replicated is based on the fixed capacitance that is switched-in to the LC circuit and therefore the frequency band of the PLL. The reference scale current is generated based on a PLL control that specifics certain PLL characteristics such as reference frequency, loop bandwidth, and loop damping. Therefore, the reference pump current can be efficiently optimized for changing PLL operating conditions, in addition to compensating for variable VCO gain.

公开(公告)号：US20050174186A1

公开(公告)日：2005-08-11

申请号：US11096154

申请日：2005-03-30

Applicant: Ramon Gomez

Inventor： Ramon Gomez

IPC: H03B1/00 ,  H03B5/12 ,  H03D7/18 ,  H03J5/24 ,  H03L7/00 ,  H03L7/089 ,  H03L7/099 ,  H03L7/10 ,  H03L7/18 ,  H03B5/00

CPC classification number: H03L7/00 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1278 ,  H03B2200/0046 ,  H03B2200/0048 ,  H03B2200/005 ,  H03B2201/02 ,  H03B2201/0208 ,  H03B2201/025 ,  H03D7/165 ,  H03D7/18 ,  H03J5/244 ,  H03J2200/10 ,  H03L7/0898 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03L7/107 ,  H03L7/1072 ,  H03L7/18

Abstract: A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit according to a capacitor control signal to perform band-select tuning of the VCO. The gain compensator compensates for the variable VCO gain by generating a charge pump reference current that is based on the same capacitor control signal that controls the fixed capacitors in the LC circuit. The gain compensator generates the charge pump reference current by replicating a reference scale current using unit current sources. The number of times the reference scale current is replicated is based on the fixed capacitance that is switched-in to the LC circuit and therefore the frequency band of the PLL. The reference scale current is generated based on a PLL control that specifics certain PLL characteristics such as reference frequency, loop bandwidth, and loop damping. Therefore, the reference pump current can be efficiently optimized for changing PLL operating conditions, in addition to compensating for variable VCO gain.

公开(公告)号：US06882234B2

公开(公告)日：2005-04-19

申请号：US10344154

申请日：2001-08-14

Applicant: Alan C. Young ,  James Harvey ,  Terrence M. P. Percival

Inventor： Alan C. Young ,  James Harvey ,  Terrence M. P. Percival

IPC: H03B5/20 ,  H03B1/00 ,  H03B5/18 ,  H03B21/02 ,  H03C3/40 ,  H03L7/00 ,  H03L7/081 ,  H03L7/099

CPC classification number: H03B5/1841 ,  H03B5/1882 ,  H03B2200/0078 ,  H03B2201/02 ,  H03C3/40 ,  H03L7/081 ,  H03L7/099

Abstract: An oscillator (100, 200) and a method of adjusting the frequency of oscillation of the oscillator (100, 200) are disclosed for generating a signal with an adjustable frequency in a frequency range from 1 GHZ to 200 GHz. The oscillator (100, 200) includes a loop circuit. The loop circuit has an amplifier (101), a delay element or filter (103), a phase shifter (102), a device for adjusting the phase shifter (102), and a coupler (104) to provide an output signal. The adjusting device is coupled to the phase shifter (102).

Abstract translation: 公开了一种振荡器（100,200）和调节振荡器（100,200）的振荡频率的方法，用于在1GHz到200GHz的频率范围内产生具有可调频率的信号。 振荡器（100,200）包括环路电路。 环路电路具有放大器（101），延迟元件或滤波器（103），移相器（102），用于调整移相器（102）的装置和耦合器（104）以提供输出信号。 调节装置耦合到移相器（102）。

公开(公告)号：US6037843A

公开(公告)日：2000-03-14

申请号：US175605

申请日：1998-10-20

Applicant: Kenneth Stephen Hunt

Inventor： Kenneth Stephen Hunt

IPC: H03B1/00 ,  H03B5/12 ,  H03H11/40 ,  H03B5/02 ,  H03H11/48 ,  H03L7/08 ,  H03L7/099

CPC classification number: H03H11/405 ,  H03B5/1206 ,  H03B5/1228 ,  H03B5/1271 ,  H03B2201/02

Abstract: A controllable reactance implemented within an integrated circuit includes a first sub-circuit (20) comprising a reactive element, for example a capacitor 12, coupled in series with a transistor (14). A controllable current source (16) injects a controllable bias current through the transistor (14) to vary the effective resistance of the transistor (14) and hence the effective complex impedance of the capacitor combination. A second transistor (18) amplifies the current to increase the effective capacitance. Preferably, a second sub-circuit (24) includes corresponding components (26, 28, 30) to mirror the real component of the current flowing in the first sub-circuit (20), and transistors (32 and 34) to reflect an inverse current to the coupling node line (22) to cancel the real component of the current at the node, to thus simulate a purely capacitive circuit. An oscillator embodying this circuit is also disclosed. The invention can provide a controllable capacitance without the need for a conventional varactor diode.

Abstract translation: 在集成电路内实现的可控电抗包括第一子电路（20），其包括与晶体管（14）串联耦合的电抗元件（例如电容器12）。 可控电流源（16）通过晶体管（14）注入可控偏置电流，以改变晶体管（14）的有效电阻，从而改变电容器组合的有效复阻抗。 第二晶体管（18）放大电流以增加有效电容。 优选地，第二子电路（24）包括对应于在第一子电路（20）中流动的电流的实分量的对应部件（26,28,30），以及用于反映第一子电路（20）的晶体管（32和34） 电流到耦合节点线（22）以抵消节点处的电流的实部分量，从而模拟纯电容电路。 还公开了体现该电路的振荡器。 本发明可以提供可控电容，而不需要常规的变容二极管。