公开(公告)号：US20160248377A1

公开(公告)日：2016-08-25

申请号：US14966294

申请日：2015-12-11

申请人： Research & Business Foundation Sungkyunkwan University

发明人： Kang Yoon LEE ,  Sang Yun KIM ,  Young Jun PARK ,  Dong Soo LEE

IPC分类号： H03B19/14 ,  H03K3/03

CPC分类号： H03B19/14 ,  H03B2200/007 ,  H03B2200/0074 ,  H03K3/0315 ,  H03K3/0322

摘要： An injection locked frequency divider is disclosed. The injection-locked frequency divider includes a sub-harmonic injection-locked oscillator, a reference clock divider, a counter, and a variable load resistor control unit. The sub-harmonic injection-locked oscillator has variable load resistors that are adjusted in response to a resistance adjustment signal, and, when oscillation frequency determined based on the magnitudes of the variable load resistors is a sub-harmonic of an injection signal, outputs signals having the oscillation frequency as divided output signals. The reference clock divider generates a count-enable signal from a reference clock signal according to a reference division ratio. The counter generates divided output count signals based on the divided output signals in response to the count-enable signal. The variable load resistor control unit compares target count values, determined based on the target frequencies of the divided output signals, with the divided output count signals, and outputs the resistance adjustment signal.

摘要翻译： 公开了一种注入锁定分频器。 注入锁定分频器包括子谐波注入锁定振荡器，参考时钟分频器，计数器和可变负载电阻控制单元。 子谐波注入锁定振荡器具有响应于电阻调节信号而调节的可变负载电阻器，并且当基于可变负载电阻器的幅度确定的振荡频率是喷射信号的次谐波时，输出信号 具有作为分频输出信号的振荡频率。 参考时钟分频器根据参考分频比从参考时钟信号产生计数使能信号。 计数器响应于计数使能信号，基于划分的输出信号产生分割的输出计数信号。 可变负载电阻控制单元将根据划分的输出信号的目标频率确定的目标计数值与划分的输出计数信号进行比较，并输出电阻调节信号。

公开(公告)号：US09337847B2

公开(公告)日：2016-05-10

申请号：US14327781

申请日：2014-07-10

申请人： Huawei Technologies Co., Ltd.

发明人： Robert Bogdan Staszewski ,  Masoud Babaie ,  Zhuobiao He

IPC分类号： H03B5/08 ,  H03L7/06 ,  H03B5/12 ,  H03H11/04

CPC分类号： H03L7/06 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/124 ,  H03B5/1265 ,  H03B5/1296 ,  H03B2200/0036 ,  H03B2200/0048 ,  H03B2200/0062 ,  H03B2200/007 ,  H03B2200/0082 ,  H03H11/0405

摘要： An oscillator used in RF system. The oscillator includes a pair of transistors to which source terminals are interconnected and to which drain and gate terminals are coupled by a positive feedback loop comprising an oscillator tank, wherein the source terminals of the transistors are connected to a current source configured to control physical parameters of the oscillator.

摘要翻译： RF系统中使用的振荡器。 振荡器包括一对晶体管，源极端子互连到其上，漏极和栅极端子通过包括振荡器槽的正反馈回路耦合到该晶体管，其中晶体管的源极端子连接到被配置为控制物理参数的电流源 的振荡器。

公开(公告)号：US08446228B2

公开(公告)日：2013-05-21

申请号：US13142428

申请日：2009-01-05

申请人： Saverio Trotta

发明人： Saverio Trotta

IPC分类号： H03B5/18 ,  H03B9/14

CPC分类号： H03B5/1847 ,  H03B2200/007 ,  H03B2200/0098

摘要： An oscillator circuit comprises a push-push oscillator and a differential output, comprising a first and a second output circuit. The push-push oscillator has a first and a second branch. Each of the first and second branch comprises an own voltage divider branch of a common bridge circuit. Each of the first and second voltage divider branches comprises an own pair of micro-strip lines connected in series. Each of the first and second voltage divider branches has an own tap. Both taps are connected to each other by at least one of a first capacity and a micro-strip line. The differential output comprises a first and a second output terminal. The first output terminal is connected via the first output circuit to a first node. The second output terminal is connected via the second output circuit to a second node. Each of the first and second nodes of the push-push oscillator is a common node of both of the first and the second branches.

摘要翻译： 振荡器电路包括推挽振荡器和差分输出，包括第一和第二输出电路。 推挽振荡器具有第一和第二分支。 第一和第二分支中的每一个包括公共桥接电路的自己的分压器分支。 第一和第二分压器分支中的每一个分支包括一对自己连接的微带线。 第一和第二分压器分支中的每一个具有自己的抽头。 两个抽头通过第一容量和微带线中的至少一个相互连接。 差分输出包括第一和第二输出端。 第一输出端子经由第一输出电路连接到第一节点。 第二输出端通过第二输出电路连接到第二节点。 推挽振荡器的第一和第二节点中的每一个是第一和第二分支两者的公共节点。

公开(公告)号：US07956698B2

公开(公告)日：2011-06-07

申请号：US12585092

申请日：2009-09-03

申请人： Takehito Ishii

发明人： Takehito Ishii

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

CPC分类号： H03B5/1841 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1296 ,  H03B2200/007 ,  H03H7/20

摘要： A high-frequency voltage-Controlled oscillation circuit which does not oscillate abnormally, is improved in phase noise, and has a small circuit scale. A phase shift circuit composed of third or more order odd π low-Pass filter and capacitive variable-reactance elements (D1, D2) connected to the input and output of the low-pass filter in series respectively is inserted in a feedback loop of a transistor of an oscillation amplifier circuit. The low-pass filter is composed of an inductive reactance element (L3) connected to the feedback loop in series and capacitive variable-reactance elements (D4, D5) parallel connected to the input and Output of the inductive reactance element (L3). The inductive reactance element (L3) is a C-Shaped, a donut-Shaped, or a U-Shaped microstrip line. Thus, a high-frequency voltage-Controlled oscillation circuit is realized.

摘要翻译： 不振荡的高频电压控制振荡电路的相位噪声提高，电路规模小。 由三阶或更多阶奇数组成的相移电路; 分别连接到低通滤波器的输入和输出的低通滤波器和电容式可变电抗元件（D1，D2）分别插入振荡放大器电路的晶体管的反馈回路中。 低通滤波器由与反馈回路串联的感抗元件（L3）和并联连接到感抗元件（L3）的输入和输出的电容式可变电抗元件（D4，D5）组成。 感抗元件（L3）是C形，圆环形或U形微带线。 因此，实现了高频电压控制振荡电路。

公开(公告)号：US07403075B2

公开(公告)日：2008-07-22

申请号：US11345716

申请日：2006-02-02

申请人： Rajarshi Mukhopadhyay ,  Sebastien Nuttinck ,  Yun-Seo Park ,  Sang-Woong Yoon ,  Sang-Hyun Woo ,  Hyun-Il Kang ,  Chang-Ho Lee ,  Joy Laskar

发明人： Rajarshi Mukhopadhyay ,  Sebastien Nuttinck ,  Yun-Seo Park ,  Sang-Woong Yoon ,  Sang-Hyun Woo ,  Hyun-Il Kang ,  Chang-Ho Lee ,  Joy Laskar

IPC分类号： H03B1/00

CPC分类号： H03B5/1231 ,  H03B5/1203 ,  H03B5/124 ,  H03B5/1256 ,  H03B2200/007

摘要： Disclosed is an ultra wide band signal generator. The ultra wide band signal generator generates a signal of a required frequency using a harmonic signal having a frequency range of a ultra wide band (UWB). The ultra wide band signal generator includes an active inductor for generating harmonic signals having power strengths substantially equal to each other within a non-linear operation range, the tunable active inductor capable of tuning a value thereof, an oscillator for amplifying and outputting the harmonic signals generated from the active inductor by frequency-transiting the harmonic signals into high frequency bands, and a filter for selectively outputting one of the harmonic signals output from the oscillator.

摘要翻译： 公开了一种超宽带信号发生器。 超宽带信号发生器使用具有超宽带（UWB）的频率范围的谐波信号产生所需频率的信号。 超宽带信号发生器包括有源电感器，用于产生具有在非线性运行范围内彼此基本相等的功率强度的谐波信号，该可调谐有源电感器能调谐其值，用于放大和输出谐波信号的振荡器 通过将谐波信号频率转换成高频带从有源电感器产生的滤波器以及用于选择性地输出从振荡器输出的谐波信号之一的滤波器。

公开(公告)号：US20070120615A1

公开(公告)日：2007-05-31

申请号：US11657363

申请日：2007-01-24

申请人： Ulrich Rohde ,  Ajay Poddar

发明人： Ulrich Rohde ,  Ajay Poddar

IPC分类号： H03L1/00

CPC分类号： H03B5/1805 ,  H03B5/04 ,  H03B5/1203 ,  H03B5/1218 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2200/0028 ,  H03B2200/004 ,  H03B2200/007 ,  H03B2200/0076

摘要： An oscillator comprising a three-terminal device and circuitry coupled across a first terminal and a second terminal of the device. The circuitry is preferably operable to bias the device and feedback a select amount of noise generated by the device into the device so as to reduce a proportional amount of phase noise present at a third terminal of the device.

摘要翻译： 一种振荡器，包括三端装置和耦合在装置的第一端和第二端之间的电路。 电路优选地可操作以偏置装置并且将装置产生的选择量的噪声反馈到装置中，以便减少存在于装置的第三端处的相位噪声的比例量。

公开(公告)号：US20060197617A1

公开(公告)日：2006-09-07

申请号：US11345716

申请日：2006-02-02

申请人： Rajarshi Mukhopadhy ,  Sebastien Nuttinck ,  Yun-Seo Park ,  Sang-Woong Yoon ,  Sang-Hyun Woo ,  Hyun-Il Kang ,  Chang-Ho Lee ,  Joy Laskar

发明人： Rajarshi Mukhopadhy ,  Sebastien Nuttinck ,  Yun-Seo Park ,  Sang-Woong Yoon ,  Sang-Hyun Woo ,  Hyun-Il Kang ,  Chang-Ho Lee ,  Joy Laskar

IPC分类号： H03B1/00

CPC分类号： H03B5/1231 ,  H03B5/1203 ,  H03B5/124 ,  H03B5/1256 ,  H03B2200/007

摘要： Disclosed is an ultra wide band signal generator. The ultra wide band signal generator generates a signal of a required frequency using a harmonic signal having a frequency range of a ultra wide band (UWB). The ultra wide band signal generator includes an active inductor for generating harmonic signals having power strengths substantially equal to each other within a non-linear operation range, the tunable active inductor capable of tuning a value thereof, an oscillator for amplifying and outputting the harmonic signals generated from the active inductor by frequency-transiting the harmonic signals into high frequency bands, and a filter for selectively outputting one of the harmonic signals output from the oscillator.

摘要翻译： 公开了一种超宽带信号发生器。 超宽带信号发生器使用具有超宽带（UWB）的频率范围的谐波信号产生所需频率的信号。 超宽带信号发生器包括有源电感器，用于产生具有在非线性运行范围内彼此基本相等的功率强度的谐波信号，该可调谐有源电感器能调谐其值，用于放大和输出谐波信号的振荡器 通过将谐波信号频率转换成高频带从有源电感器产生的滤波器以及用于选择性地输出从振荡器输出的谐波信号之一的滤波器。

公开(公告)号：US07046053B2

公开(公告)日：2006-05-16

申请号：US10788935

申请日：2004-02-27

申请人： Ricardo A. Nicholas

发明人： Ricardo A. Nicholas

IPC分类号： H03B4/02

CPC分类号： H03B28/00 ,  H03B2200/007 ,  H03H11/04 ,  H03K4/066

摘要： Embodiments of the invention provide a method and an apparatus for generating a total harmonic distortion reference signal. A triangle wave having a predetermined frequency and a predetermined amplitude is generated. The triangle wave is filtered to produce a signal substantially consisting of a sinusoid at the predetermined frequency and selected harmonics of predetermined amplitudes.

摘要翻译： 本发明的实施例提供一种用于产生总谐波失真参考信号的方法和装置。 产生具有预定频率和预定幅度的三角波。 三角波被滤波以产生基本上由预定频率的正弦曲线和预定幅度的选定谐波组成的信号。

公开(公告)号：US5231361A

公开(公告)日：1993-07-27

申请号：US474909

申请日：1990-02-05

申请人： Duncan M. Smith ,  Barry R. Allen

发明人： Duncan M. Smith ,  Barry R. Allen

IPC分类号： H03B1/00 ,  H03B5/18

CPC分类号： H03B5/1847 ,  H03B2200/004 ,  H03B2200/007 ,  H03B2200/0098 ,  H03B2201/0208

摘要： The present invention resides in a push-push voltage controlled oscillator (VCO) utilizing parallel LC resonant tank circuits for improved phase noise characteristics. The push-push VCO of the present invention includes two voltage controlled oscillators connected in parallel and in phase opposition, with each oscillator including a transistor connected in series with the parallel LC resonant tank circuit. The oscillators operate at the same resonant frequency f.sub.0, but are 180 degrees out of phase. Therefore, the fundamental and odd harmonics of the resonant frequency f.sub.0 cancel each other out and the even harmonics add together to produce an output signal at twice the resonant frequency f.sub.0.

摘要翻译： 本发明在于推进压控振荡器（VCO），其利用并联LC谐振回路来改善相位噪声特性。 本发明的推挽VCO包括并联连接和相位相对的两个压控振荡器，每个振荡器包括与并联LC谐振回路串联的晶体管。 振荡器以相同的谐振频率f0工作，但相位相差180度。 因此，谐振频率f0的基波和奇次谐波彼此抵消，偶次谐波相加在一起，以产生谐振频率f0的两倍的输出信号。

公开(公告)号：US5160901A

公开(公告)日：1992-11-03

申请号：US581672

申请日：1990-09-13

申请人： Charles S. Stone

发明人： Charles S. Stone

IPC分类号： H03B1/04 ,  H03B5/04 ,  H03B5/36 ,  H03B25/00

CPC分类号： H03B5/36 ,  H03B1/04 ,  H03B2200/0008 ,  H03B2200/0018 ,  H03B2200/007 ,  H03B2202/05 ,  H03B25/00 ,  H03B5/04

摘要： A multimode oscillator is disclosed which employs a single gain feedback loop for exciting at least two modes of a resonator to cause the oscillator to oscillate simultaneously at at least two frequencies. The multi-mode oscillator comprises the resonator, an amplifier to provide gain at the appropriate operating frequencies to support simultaneous oscillation at such frequencies and an equalizing network with amplitude and phase characteristics versus frequency to support the simultaneous modes of oscillation. The single loop oscillator permits separate control of the two simultaneous different frequencies of oscillation. In order to minimize thermal hysteresis, at least the active portion of the feedback loop does not include inductors. In some applications, the multimode oscillator may include one or more rejection networks to suppress unwanted oscillations. The useful outputs of the multimode oscillator are one or more of the operating frequencies, harmonics and intermodulation products. In one specific embodiment, one output is at the frequency of the fundamental C-mode resonance of an SC-cut lateral field quartz crystal, and a second output is at the beat frequency between the third harmonic of that fundamental and the third overtone. The beat frequency is a measurement of effects, such as temperature, upon the frequencies of operation of the oscillator.

摘要翻译： 公开了一种多模振荡器，其采用单个增益反馈回路来激励谐振器的至少两个模式，以使振荡器以至少两个频率同时振荡。 多模式振荡器包括谐振器，放大器，以在适当的工作频率下提供增益，以支持在这种频率下的同时振荡，以及具有振幅和相位特性对频率的均衡网络，以支持同时振荡的振荡模式。 单回路振荡器允许单独控制两个同时不同的振荡频率。 为了最小化热滞后，至少反馈回路的有效部分不包括电感器。 在一些应用中，多模振荡器可以包括一个或多个抑制网络以抑制不需要的振荡。 多模振荡器的有用输出是工作频率，谐波和互调产物中的一个或多个。 在一个具体实施例中，一个输出处于SC切割横向场石英晶体的基本C模式谐振的频率处，并且第二输出处于该基波的第三谐波和第三谐波之间的拍频。 拍频是对振荡器的操作频率的影响的测量，例如温度。