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公开(公告)号：US5118660A
公开(公告)日：1992-06-02
申请号：US658285
申请日：1991-02-20
申请人： Leon Riebman
发明人： Leon Riebman
CPC分类号： H03B5/00 , H03B15/00 , H03B2200/0034 , H03B2200/0088 , H03B2200/009 , H03B2202/017 , H03B2202/027 , H03B2202/073 , Y10S505/854
摘要： A low-noise cryogenic oscillator has a resonant circuit formed of superconducting material for generating a signal at a desired frequency. A linear amplifier and a limiter are electrically connected to the resonant circuit at first, second and third locations. A buffer amplifier is electrically connected to the resonant circuit at a fourth location and applies the signal generated by the resonant circuit to a load. The first, second, third and fourth locations are selected to minimize the impedance from those locations to ground at 1/f frequencies. The resonant circuit, the linear amplifier, the limiter and the buffer amplifier are all maintained at a temperature below the critical temperature of the superconducting material.
摘要翻译： 低噪声低温振荡器具有由超导材料形成的谐振电路，用于以期望的频率产生信号。 线性放大器和限幅器在第一，第二和第三位置电连接到谐振电路。 缓冲放大器在第四位置电连接到谐振电路，并将由谐振电路产生的信号施加到负载。 选择第一，第二，第三和第四位置以使从1 / f频率处的这些位置到地的阻抗最小化。 谐振电路，线性放大器，限幅器和缓冲放大器都保持在低于超导材料的临界温度的温度。
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公开(公告)号：US08830007B1
公开(公告)日：2014-09-09
申请号：US13423420
申请日：2012-03-19
申请人： Doron Gamliel
发明人： Doron Gamliel
IPC分类号： H03K3/282
CPC分类号： H03B5/1243 , H03B5/1203 , H03B5/1231 , H03B2200/0008 , H03B2200/009 , H03B2202/073
摘要： An ultra-low phase noise voltage controlled oscillator uses a single bipolar transistor Colpitts oscillator circuit and a noise-reducing negative feedback path consisting of a capacitor and a second element which may be a second capacitor, an inductor or a resistor. The negative feedback path is kept separate from any DC biasing paths in the circuit. A pair of varactor diodes are used to provide resonant frequency control.
摘要翻译： 超低相位噪声电压控制振荡器使用单个双极晶体管Colpitts振荡器电路和由电容器和可以是第二电容器，电感器或电阻器的第二元件组成的降噪负反馈路径。 负反馈路径与电路中的任何直流偏置路径保持分离。 一对变容二极管用于提供谐振频率控制。
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公开(公告)号：US5920235A
公开(公告)日：1999-07-06
申请号：US882577
申请日：1997-06-25
CPC分类号： H03B5/1231 , H03B5/1215 , H03B5/1243 , H03B2202/04 , H03B2202/073 , H03B2202/076
摘要： A voltage controlled oscillator has a cross-coupled negative resistance cell formed as an integrated circuit connected to off-chip components of a high-Q resonant tank circuit. To counteract spurious oscillations brought about by package parasitics caused by the interconnection of the chip to the external components, the cell is provided with a degeneration impedance. Typically, a pure inductor is used if all the elements of the tank circuit are off-chip. In a case where the tank circuit includes an on-chip fixed capacitor, the degeneration impedance may take the form of a capacitor.
摘要翻译： 压控振荡器具有交叉耦合负电阻单元，其形成为连接到高Q谐振回路的芯片外部件的集成电路。 为了抵消由芯片与外部组件的互连引起的封装寄生效应引起的寄生振荡，电池被提供了退化阻抗。 通常，如果储能电路的所有元件都是芯片外的，则使用纯电感。 在储能电路包括片上固定电容器的情况下，退化阻抗可以采取电容器的形式。
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公开(公告)号：US20060273860A1
公开(公告)日：2006-12-07
申请号：US11447190
申请日：2006-06-05
申请人： Kenji Kasahara
发明人： Kenji Kasahara
IPC分类号： H03B5/32
CPC分类号： H03B5/366 , H03B1/04 , H03B2200/0008 , H03B2202/017 , H03B2202/073
摘要： Oscillation in which unwanted vibration (B mode) is surely suppressed while stable oscillation by principal vibration (C mode) is obtained is obtained. In a Colpitts oscillator including a piezoelectric vibrator, a transistor, and a first and second divided capacitive components, by inserting a feedback circuit formed by connecting a third capacitive component and a first inductor in series between a connection midpoint between the first capacitive component and the second capacitive component and an emitter of the transistor, inserting a second inductor in parallel with the second capacitive component, and setting the parallel resonance frequency of the second capacitive component and the second inductor in the vicinity of the oscillation frequency of the oscillator, the frequency band in which the negative resistance of the circuit side seen from the piezoelectric vibrator appears is set to a narrow band containing only a desired frequency to suppress unwanted vibration of the oscillator.
摘要翻译： 获得了通过主振动（C模式）稳定振荡时可靠地抑制不希望的振动（B模式）的振荡。 在包括压电振动器，晶体管以及第一和第二分开的电容性部件的Colpitts振荡器中，通过插入通过将第三电容部件和第一电感器串联连接而形成的反馈电路，所述第三电容部件和第一电感器串联连接在第一电容部件和 所述晶体管的第二电容分量和发射极插入与所述第二电容分量并联的第二电感，并且将所述第二电容分量和所述第二电感器的并联谐振频率设置在所述振荡器的振荡频率附近，所述频率 出现从压电振动器看到的电路侧的负电阻的频带被设置为仅包含期望频率的窄带，以抑制振荡器的不期望的振动。
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5.发明授权Selective loading for sideband noise ratio reduction of a voltage controlled oscillator 失效选择性加载压控振荡器的边带噪声比降低
公开(公告)号：US5936480A
公开(公告)日：1999-08-10
申请号：US15973
申请日：1998-01-30
申请人： Chee Khon Chong
发明人： Chee Khon Chong
CPC分类号： H03B5/1231 , H03B5/1225 , H03B5/1243 , H03B2200/001 , H03B2200/004 , H03B2200/0042 , H03B2200/0052 , H03B2200/0062 , H03B2201/0208 , H03B2202/027 , H03B2202/073
摘要： A voltage controlled oscillator (1) comprising a voltage controllable variable resonant circuit (2) having a control input (Vctrl), a positive feedback input (6) and a controllable variable frequency output (7). There is an amplifier (3) having an amplifier input coupled to the controllable variable frequency output (7). A positive feedback path (4) couples the amplifier (3) to the positive feedback input (6) and there is selectable load (5) in parallel with the positive feedback path (4) for selectively reducing the SideBand Noise Ratio.
摘要翻译： 一种压控振荡器（1），包括具有控制输入（Vctr1），正反馈输入（6）和可控可变频率输出（7）的电压可控可变谐振电路（2）。 存在放大器（3），其具有耦合到可控可变频率输出（7）的放大器输入。 正反馈路径（4）将放大器（3）耦合到正反馈输入（6），并且与正反馈路径（4）并联的可选负载（5）用于选择性地降低边带噪声比。
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公开(公告)号：US20180113193A1
公开(公告)日：2018-04-26
申请号：US15726433
申请日：2017-10-06
CPC分类号： G01S7/2813 , G01S7/038 , G01S7/35 , G01S7/4056 , G01S13/34 , G01S13/343 , G01S13/931 , G01S2007/028 , G01S2007/406 , G01S2007/4065 , H03B1/04 , H03B2202/073
摘要： A method for cancelling phase noise in a radar signal is described herein. In accordance with one embodiment, the method includes transmitting an RF oscillator signal, which represents a local oscillator signal including phase noise, to a radar channel and receiving a respective first RF radar signal from the radar channel. The first RF radar signal included at least one radar echo of the transmitted RF oscillator signal. Further, the method includes applying the RF oscillator signal to an artificial radar target composed of circuitry, which applies a delay and a gain to the RF oscillator signal, to generate a second RF radar signal. The second RF radar signal is modulated by a modulation signal thus generating a frequency-shifted RF radar signal. Further, the method includes subtracting the frequency-shifted RF radar signal from the first RF radar signal.
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公开(公告)号：US07369005B2
公开(公告)日：2008-05-06
申请号：US11447190
申请日：2006-06-05
申请人： Kenji Kasahara
发明人： Kenji Kasahara
IPC分类号： H03B5/32
CPC分类号： H03B5/366 , H03B1/04 , H03B2200/0008 , H03B2202/017 , H03B2202/073
摘要： Oscillation in which unwanted vibration (B mode) is surely suppressed while stable oscillation by principal vibration (C mode) is obtained is obtained. In a Colpitts oscillator including a piezoelectric vibrator, a transistor, and a first and second divided capacitive components, by inserting a feedback circuit formed by connecting a third capacitive component and a first inductor in series between a connection midpoint between the first capacitive component and the second capacitive component and an emitter of the transistor, inserting a second inductor in parallel with the second capacitive component, and setting the parallel resonance frequency of the second capacitive component and the second inductor in the vicinity of the oscillation frequency of the oscillator, the frequency band in which the negative resistance of the circuit side seen from the piezoelectric vibrator appears is set to a narrow band containing only a desired frequency to suppress unwanted vibration of the oscillator.
摘要翻译： 获得了通过主振动（C模式）稳定振荡时可靠地抑制不希望的振动（B模式）的振荡。 在包括压电振动器，晶体管以及第一和第二分开的电容性部件的Colpitts振荡器中，通过插入通过将第三电容部件和第一电感器串联连接而形成的反馈电路，所述第三电容部件和第一电感器串联连接在第一电容部件和 所述晶体管的第二电容分量和发射极插入与所述第二电容分量并联的第二电感，并且将所述第二电容分量和所述第二电感器的并联谐振频率设置在所述振荡器的振荡频率附近，所述频率 出现从压电振动器看到的电路侧的负电阻的频带被设置为仅包含期望频率的窄带，以抑制振荡器的不期望的振动。
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公开(公告)号：US5900788A
公开(公告)日：1999-05-04
申请号：US989084
申请日：1997-12-11
申请人： Frank Hagemeyer
发明人： Frank Hagemeyer
CPC分类号： H03B5/1231 , H03B5/1221 , H03B5/1243 , H03B5/1281 , H03B2200/004 , H03B2200/0088 , H03B2200/009 , H03B2202/012 , H03B2202/073 , H03C3/22
摘要： A low-noise oscillator circuit with an amplifier element for negative feedback, specifically a transistor. In addition to a positive feedback of the oscillator transistor, provision is made for a negative-feedback loop with a pass band of 0 (thus DC coupling) to 1/4 to 1/100 of the oscillation frequency of the oscillator, in order to regulate out fluctuations of the current of the amplifier element.
摘要翻译： 具有用于负反馈的放大器元件的低噪声振荡器电路，特别是晶体管。 除了振荡晶体管的正反馈之外，还提供了一个负通道环路，其通带为0（从而DC耦合）到+ E，fra 1/4 + EE至+ E，fra 1/100 + EE振荡器的振荡频率，以便调节放大器元件电流的波动。
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公开(公告)号：US5166647A
公开(公告)日：1992-11-24
申请号：US825680
申请日：1992-01-27
申请人： Leon Riebman
发明人： Leon Riebman
CPC分类号： H03B5/00 , H03B15/00 , H03B2200/0034 , H03B2200/0088 , H03B2200/009 , H03B2202/017 , H03B2202/027 , H03B2202/073
摘要： A low-noise oscillator has a resonant circuit for generating a signal at a desired frequency. A linear amplifier and a limiter are electrically connected to the resonant circuit at first, second and third locations. A buffer amplifier is electrically connected to the resonant circuit at a fourth location and applies the signal generated by the resonant circuit to a load. The first, second, third and fourth locations are selected to minimize the impedance from those locations to ground at 1/f frequencies.
摘要翻译： 低噪声振荡器具有用于产生期望频率的信号的谐振电路。 线性放大器和限幅器在第一，第二和第三位置电连接到谐振电路。 缓冲放大器在第四位置电连接到谐振电路，并将由谐振电路产生的信号施加到负载。 选择第一，第二，第三和第四位置以使从1 / f频率处的这些位置到地的阻抗最小化。
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公开(公告)号：US4763084A
公开(公告)日：1988-08-09
申请号：US35213
申请日：1987-04-09
CPC分类号： H03B5/1876 , H03B19/14 , H03B2200/007 , H03B2200/0088 , H03B2200/009 , H03B2200/0098 , H03B2202/073 , H03B2202/086 , H03B5/1852
摘要： A push-push broadband dielectric resonator oscillator circuit that operates in the K and Ka band frequency range has two oscillator circuits that oscillate at the same fundamental frequency. An antiphaseal relationship is maintained between the two oscillators through the use of a dielectric resonator and the desired frequency is obtained by vectorially combining the output signals of the two oscillators that have the antiphase relationship to obtain an output frequency that is twice the fundamental frequency of operation of each of the individual dielectric resonator oscillator circuits.
摘要翻译： 在K和Ka频带范围内工作的推挽式宽带介质谐振器振荡器电路具有以相同基频振荡的两个振荡电路。 通过使用介质谐振器在两个振荡器之间保持反相关系，并且通过对具有反相关系的两个振荡器的输出信号进行矢量组合来获得期望的频率，以获得基本工作频率的两倍的输出频率 每个介质谐振器振荡器电路。
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