公开(公告)号：US20180191301A1

公开(公告)日：2018-07-05

申请号：US15860951

申请日：2018-01-03

申请人： FCI INC.

发明人： Jecheol MOON

IPC分类号： H03B5/12

CPC分类号： H03B5/1228 ,  H03B5/1215 ,  H03B5/1218 ,  H03B5/1243 ,  H03B5/1296 ,  H03B19/00 ,  H03B2200/0074 ,  H03D7/1466

摘要： A local oscillator generation system includes a first frequency divider configured to divide frequencies of a first voltage controlled oscillator signal and a second voltage controlled oscillator signal by 2, and output a first divided signal and a second divided signal; a mixer configured to mix the first voltage controlled oscillator signal, the second voltage controlled oscillator signal, the first divided signal, and the second divided signal, and output a first frequency mixed signal and a second frequency mixed signal; a transimpedance amplifier configured to amplify the first frequency mixed signal and the second frequency mixed signal, and output a first amplified signal and a second amplified signal; and a band-pass filter configured to filter the first amplified signal and the second amplified signal, and output a first filtered signal and a second amplified signal.

公开(公告)号：US20170324378A1

公开(公告)日：2017-11-09

申请号：US15659322

申请日：2017-07-25

申请人： Huawei Technologies Co., Ltd.

发明人： Mina SHAHMOHAMMADI ,  Masoud BABAIE ,  Robert Bogdan STASZEWSKI

IPC分类号： H03B5/12

CPC分类号： H03B5/1243 ,  H03B5/1218 ,  H03B5/1228 ,  H03B5/1262 ,  H03B5/1296 ,  H03B2201/0266

摘要： The embodiments of the invention relate to a radio frequency oscillator, the radio frequency oscillator comprising a resonator circuit resonant at an excitation of the resonator circuit in a differential mode and at an excitation of the resonator circuit in a common mode, wherein the resonator circuit has a differential mode resonance frequency at the excitation in the differential mode, and wherein the resonator circuit has a common mode resonance frequency at the excitation in the common mode, a first excitation circuit configured to excite the resonator circuit in the differential mode to obtain a differential mode oscillator signal oscillating at the differential mode resonance frequency, and a second excitation circuit configured to excite the resonator circuit in the common mode to obtain a common mode oscillator signal oscillating at the common mode resonance frequency.

公开(公告)号：US09537447B2

公开(公告)日：2017-01-03

申请号：US14808867

申请日：2015-07-24

申请人： Infineon Technologies AG

发明人： Saverio Trotta

IPC分类号： H03B5/08 ,  H03B5/12 ,  H03B1/00 ,  H03B5/18

CPC分类号： H03B5/1206 ,  H03B1/00 ,  H03B5/1218 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1847

摘要： In accordance with an embodiment, a voltage controlled oscillator (VCO) includes a VCO core having a plurality of transistors, a bias resistor coupled between collector terminals of the VCO core and a first supply node, and a varactor circuit coupled to emitter terminals of the VCO core. The bias resistor is configured to limit a self-bias condition of the VCO core.

摘要翻译： 根据实施例，压控振荡器（VCO）包括具有多个晶体管的VCO核心，耦合在VCO核心的集电极端子与第一电源节点之间的偏置电阻器，以及耦合到所述VCO芯片的发射极端子的变容二极管电路 VCO核心。 偏置电阻器被配置为限制VCO核心的自偏置状态。

公开(公告)号：US09438163B2

公开(公告)日：2016-09-06

申请号：US14612415

申请日：2015-02-03

申请人： Taiwan Semiconductor Manufacturing Co., Ltd.

发明人： Ying-Ta Lu ,  Hsien-Yuan Liao ,  Ho-Hsiang Chen ,  Chewn-Pu Jou

IPC分类号： H03B5/12 ,  H03B1/00

CPC分类号： H03B5/1212 ,  H03B1/00 ,  H03B5/1218 ,  H03B5/1228 ,  H03B5/1256 ,  H03B5/1296 ,  H03B2200/0078 ,  H03B2200/0082 ,  Y10T29/4902

摘要： The present disclosure relates to a device and method to reduce voltage headroom within a voltage-controlled oscillator by utilizing trifilar coupling or transformer feedback with a capacitive coupling technique. In some embodiments of trifilar coupling, a VCO comprises cross-coupled single-ended oscillators, wherein the voltage of first gate within a first single-ended oscillator is separated from the voltage of a second drain within a second single-ended oscillator within the cross-coupled pair. A trifilar coupling network is composed of a drain inductive component, a source inductive component, and a gate inductive component for a single-ended oscillator, wherein a coupling between drain inductive components and gate inductive components between single-ended oscillators along with a negative feedback loop within each single-ended oscillator forms a cross-coupled pair of transistors which reduces the drain-to-source voltage headroom to approximately a saturation voltage of a transistor within the cross-coupled pair. Other devices and methods are also disclosed.

公开(公告)号：US09397613B2

公开(公告)日：2016-07-19

申请号：US14874401

申请日：2015-10-03

申请人： Masoud Babaie ,  Robert Bogdan Staszewski

发明人： Masoud Babaie ,  Robert Bogdan Staszewski

IPC分类号： H03B5/12 ,  H03L7/081 ,  H03L7/099

CPC分类号： H03B5/1212 ,  H03B5/1215 ,  H03B5/1218 ,  H03B5/1228 ,  H03B5/124 ,  H03B5/1265 ,  H03B5/1281 ,  H03B5/1293 ,  H03B5/1296 ,  H03J2200/10 ,  H03L7/081 ,  H03L7/0991 ,  H03L7/1976

摘要： A novel and useful RF oscillator suitable for use in applications requiring ultra-low voltage and power. The oscillator structure, employing alternating current source transistors, combines the benefits of low supply voltage operation of conventional NMOS cross-coupled oscillators together with high current efficiency of the complementary push-pull oscillators. In addition, the 1/f noise upconversion is also reduced. The oscillator can be incorporated within a wide range of circuit applications, including for example a conventional phase locked loop (PLL), all-digital phase-locked loop (ADPLL), wireline transceiver circuits and mobile devices.

摘要翻译： 一种新颖有用的RF振荡器，适用于需要超低电压和功率的应用。 采用交流电源晶体管的振荡器结构将常规NMOS交叉耦合振荡器的低电源电压工作的优点与互补推挽式振荡器的高电流效率相结合。 此外，1 / f噪声上变频也降低。 振荡器可以并入广泛的电路应用中，包括例如常规的锁相环（PLL），全数字锁相环（ADPLL），有线收发器电路和移动设备。

公开(公告)号：US20160204740A1

公开(公告)日：2016-07-14

申请号：US14592415

申请日：2015-01-08

申请人： Infineon Technologies AG

发明人： Saverio Trotta

IPC分类号： H03B5/24

CPC分类号： H03B5/1243 ,  H03B1/00 ,  H03B5/1218 ,  H03B5/1231 ,  H03B5/1847 ,  H03B5/24 ,  H03B2200/0062 ,  H03B2201/0208

摘要： In accordance with an embodiment, a voltage controlled oscillator (VCO) includes a VCO core having a plurality of transistors and a varactor circuit that has a first end coupled to emitter terminals of the VCO core and a second end coupled to a tuning terminal. The varactor circuit includes a capacitance that increases with increasing voltage applied to the tuning terminal with respect to the emitter terminals of the VCO core.

摘要翻译： 根据实施例，压控振荡器（VCO）包括具有多个晶体管的VCO核心和具有耦合到VCO核心的发射极端子的第一端和耦合到调谐端子的第二端的变容二极管电路。 变容二极管电路包括随着施加到调谐端子相对于VCO核心的发射极端子的电压的增加而增加的电容。

公开(公告)号：US09209744B1

公开(公告)日：2015-12-08

申请号：US13765915

申请日：2013-02-13

申请人： M/A-COM Technology Solutions Holdings, Inc.

发明人： Wayne M. Struble ,  Eoin Carey ,  Ronan G. Brady ,  Shane M. Collins

IPC分类号： H03B5/12 ,  H03B1/00

CPC分类号： H03B7/06 ,  H03B5/1206 ,  H03B5/1218 ,  H03B5/1231 ,  H03B5/124 ,  H03B5/1243 ,  H03B2200/0008

摘要： An apparatus having a substrate, a first die and a second die is disclosed. The substrate may include a circuit having an inductance. The first die may be (i) mounted on the substrate, (ii) connected to the circuit and (iii) configured to control a frequency of an oscillation of a signal in the circuit. The frequency is generally varied by adjusting a voltage in the first die. The second die may be (i) mounted on the substrate, (ii) connected to the circuit and (iii) configured to excite the signal. The apparatus generally forms a voltage-controlled oscillator.

摘要翻译： 公开了具有基板，第一模具和第二模具的装置。 衬底可以包括具有电感的电路。 第一管芯可以是（i）安装在衬底上，（ii）连接到电路，以及（iii）被配置为控制电路中的信号的振荡频率。 通常通过调节第一管芯中的电压来改变频率。 第二管芯可以（i）安装在衬底上，（ii）连接到电路，并且（iii）被配置为激发信号。 该装置通常形成压控振荡器。

公开(公告)号：US20150162873A1

公开(公告)日：2015-06-11

申请号：US14565565

申请日：2014-12-10

申请人： Sehat Sutardja

发明人： Sehat Sutardja

IPC分类号： H03B5/12

CPC分类号： H03B5/1203 ,  H03B5/06 ,  H03B5/1218 ,  H03B5/1228 ,  H03B5/1243

摘要： An impulse generation circuit for a voltage controlled oscillator includes a zero-crossing detector configured to detect a zero-crossing time of an output signal of the voltage controlled oscillator. The zero-crossing time corresponds to a time that the output signal crosses from a first polarity to a second polarity. A delay circuit is configured to wait for a delay period based on the zero-crossing time and a voltage peak of the output signal. An impulse generation module is configured to generate an impulse subsequent to the delay period. An energy injector is configured to, in response to the impulse, connect a supply voltage to the output signal of the voltage controlled oscillator for a duration of the impulse.

摘要翻译： 用于压控振荡器的脉冲发生电路包括被配置为检测压控振荡器的输出信号的过零时间的过零检测器。 过零时间对应于输出信号从第一极性到第二极性的时间。 延迟电路被配置为基于过零时间和输出信号的电压峰值等待延迟时段。 脉冲生成模块被配置为在延迟周期之后产生脉冲。 能量注入器被配置为响应于脉冲，在脉冲的持续时间内将电源电压连接到压控振荡器的输出信号。

公开(公告)号：US08994463B2

公开(公告)日：2015-03-31

申请号：US13814764

申请日：2010-08-26

申请人： Yin Yi ,  Hao Li ,  Saverio Trotta

发明人： Yin Yi ,  Hao Li ,  Saverio Trotta

IPC分类号： H03B5/18 ,  H02M7/5383 ,  H03B25/00 ,  H03B5/12

CPC分类号： H02M7/53835 ,  H03B5/1209 ,  H03B5/1218 ,  H03B5/1231 ,  H03B5/124 ,  H03B5/1847 ,  H03B25/00 ,  H03B2200/007

摘要： A push-push oscillator circuit with a first oscillation branch with a first active device and a first tank adapted to provide a signal having a fundamental frequency f0, a second oscillation branch with a second active device and a second tank symmetrical to the first oscillation branch and adapted to provide a signal having the fundamental frequency f0. Output branches are coupled to the first oscillation branch and the second oscillation branch to provide signals having the second harmonic frequency 2f0 of the fundamental signal based on the signals having the fundamental frequency f0 and/or to provide signals having the fundamental frequency f0; The push-push oscillator circuit further comprises at least one terminal branch with a terminal adapted to provide a component of a differential signal having the second harmonic frequency 2f0 or the fundamental frequency f0. The at least one terminal branch comprises a RF stub.

摘要翻译： 一种具有第一振荡分支的推挽振荡器电路，具有第一有源器件和适于提供具有基频f0的信号的第一振荡器，具有第二有源器件的第二振荡分支和与第一振荡分支对称的第二振荡器 并且适于提供具有基频f0的信号。 输出分支耦合到第一振荡分支和第二振荡分支，以基于具有基频f0的信号和/或提供具有基频f0的信号来提供具有基波信号的二次谐波频率2f0的信号; 推挽振荡器电路还包括至少一个终端分支，其具有适于提供具有二次谐波频率2f0或基频f0的差分信号的分量的终端。 至少一个终端分支包括RF短截线。

公开(公告)号：US08970310B2

公开(公告)日：2015-03-03

申请号：US13649046

申请日：2012-10-10

申请人： Analog Devices, Inc.

发明人： James Breslin ,  Michael F. Keaveney

IPC分类号： H03K3/282 ,  H03B5/12

CPC分类号： H03B5/1228 ,  H03B5/1218 ,  H03B5/1231 ,  H03B5/1253

摘要： As provided herein, in some embodiments, monolithic oscillators with low phase noise, large swing voltages, wide tuning, and high frequency characteristics are obtained by a monolithic integrated circuit having an oscillator core configured to generate a first output signal, and one or more tuning units operatively coupled to the oscillator core. In some embodiments, the oscillator core is a push-push oscillator core having a bipolar junction transistor, and each of the tuning units uses a FET transistor to present a selectable capacitance. In some embodiments, the tuning units have high-voltage and high-frequency capabilities. In some embodiments, the tuning units use MEMS switches to selectively connect capacitances to the oscillator core. In some embodiments, the oscillator core generates a second signal that has twice the frequency of the first frequency.

摘要翻译： 如本文所提供的，在一些实施例中，具有低相位噪声，大摆动电压，宽调谐和高频特性的单片振荡器通过具有被配置为产生第一输出信号的振荡器核心的单片集成电路和一个或多个调谐 可操作地耦合到振荡器芯的单元。 在一些实施例中，振荡器芯是具有双极结型晶体管的推挽式振荡器芯，并且每个调谐单元使用FET晶体管呈现可选择的电容。 在一些实施例中，调谐单元具有高电压和高频能力。 在一些实施例中，调谐单元使用MEMS开关来选择性地将电容连接到振荡器芯。 在一些实施例中，振荡器核心产生具有第一频率的两倍频率的第二信号。