公开(公告)号：US3899752A

公开(公告)日：1975-08-12

申请号：US41608273

申请日：1973-11-15

申请人： ENGELMANN MICROWAVE CO

发明人： ENGELMANN HERBERT F

IPC分类号： H03B1/00 ,  H03B5/18 ,  H03B5/24

CPC分类号： H03B5/1817 ,  H03B2201/031 ,  H03B2201/033

摘要： An improved microwave oscillator wherein the oscillator includes a resonator assembly provided with a movable resonator member for varying the frequency response of the oscillator and which further includes a transistor, the improvement including means for varying the electrical coupling between a lead of the transistor and the resonator assembly to provide optimum coupling between the transistor lead and the resonator assembly for maximum power output; means for compensating for variations in frequency response of the oscillator upon different transistors being positioned different distances from the resonator assembly; coupling means electrically associated with the transistor to assure proper coupling between the transistor and the resonator assembly at the low frequencies; means for providing additional feedback to the transistor to assure sufficient feedback to sustain low frequency oscillation of the transistor which is typically chosen and designed for high frequency oscillation; and a flexible linkage interconnected between the resonator movable member and the apparatus for moving the resonator movable member whereby any lateral misalignment between structural members and apertures is compensated for.

摘要翻译： 一种改进的微波振荡器，其中所述振荡器包括谐振器组件，所述谐振器组件设置有用于改变所述振荡器的频率响应并且还包括晶体管的可移动谐振器构件，所述改进包括用于改变所述晶体管的引线与所述谐振器 组件以在晶体管引线和谐振器组件之间提供最佳耦合以实现最大功率输出; 用于补偿在与谐振器组件定位不同距离的不同晶体管时振荡器的频率响应变化的装置; 耦合装置与晶体管电连接以确保晶体管和谐振器组件在低频下的适当耦合; 用于向晶体管提供附加反馈以保证足够的反馈以维持通常为高频振荡而选择和设计的晶体管的低频振荡的装置; 以及在谐振器可动构件和用于移动谐振器可动构件的装置之间互连的柔性连接件，从而补偿了结构构件和孔之间的任何侧向偏移。

公开(公告)号：US4564822A

公开(公告)日：1986-01-14

申请号：US541440

申请日：1983-10-13

申请人： Takeshi Saitoh ,  Hiroshi Hatashita

发明人： Takeshi Saitoh ,  Hiroshi Hatashita

IPC分类号： H04B1/26 ,  H03B1/00 ,  H03B5/12 ,  H03C3/20 ,  H03H5/12 ,  H03J3/20

CPC分类号： H03B5/1231 ,  H03B5/1203 ,  H03B5/1243 ,  H03B2200/0006 ,  H03B2200/004 ,  H03B2200/0042 ,  H03B2201/0208 ,  H03B2201/033

摘要： An oscillator circuit suitable for use in a local oscillator of a tuner of a television receiver set. A feedback circuit comprised of a feedback capacitor (17) is connected between a junction of a tuning diode (10) and a correcting capacitor (11) connected in series therewith and the emitter of an oscillation transistor (1). Oscillation voltage developing across the correcting capacitor is fedback to the emitter of the oscillation transistor through the feedback capacitor. When the tuning diode is conditioned to have a large capacitance value, a large oscillation voltage is fedback to the transistor through the feedback capacitor whereas when the tuning diode is conditioned to have a small capacitance value, a small oscillation voltage is fedback to the transistor through the feedback capacitor. The oscillator circuit continues to oscillate stably over a wide frequency range whenever the tuning diode changes from the small capacitance value to the large capacitance value or vice versa.

摘要翻译： 一种适用于电视接收机的调谐器的本地振荡器的振荡器电路。 包括反馈电容器（17）的反馈电路连接在调谐二极管（10）和与其串联的校正电容器（11）的结和振荡晶体管（1）的发射极之间。 在校正电容器两端产生的振荡电压通过反馈电容反馈到振荡晶体管的发射极。 当调谐二极管被调节为具有大的电容值时，通过反馈电容将大的振荡电压反馈到晶体管，而当调谐二极管调节为具有小的电容值时，将小的振荡电压反馈到晶体管 反馈电容。 只要调谐二极管从小电容值变化到大的电容值，反之亦然，振荡器电路在宽频率范围内稳定地振荡。

公开(公告)号：US5373264A

公开(公告)日：1994-12-13

申请号：US6878

申请日：1993-01-21

申请人： Thomas M. Higgins, Jr.

发明人： Thomas M. Higgins, Jr.

IPC分类号： H03B7/06 ,  H03B1/00 ,  H03B1/04 ,  H03B5/12

CPC分类号： H03B5/1231 ,  H03B5/1203 ,  H03B5/1243 ,  H03B2201/0208 ,  H03B2201/033 ,  H03B2202/017 ,  H03B2202/027 ,  H03B7/06

摘要： Problems associated with compromise, fixed base inductances in negative resistance oscillators are overcome by use of an electronically tunable base network. Parameters such as phase noise and output power can thereby be optimized over a wide range of operating conditions. The disclosure is illustrated with reference to a 500-1000 Mhz voltage controlled oscillator employing base-tuning varactors that are slaved to the VCO's tuning signal.

摘要翻译： 与妥协相关的问题，负电阻振荡器中的固定基极电感通过使用电子可调谐基网被克服。 因此可以在宽范围的工作条件下优化相位噪声和输出功率等参数。 参考使用从属于VCO的调谐信号的基准调谐变容二极管的500-1000Mhz压控振荡器来说明本公开。

公开(公告)号：US5032800A

公开(公告)日：1991-07-16

申请号：US538439

申请日：1990-06-15

申请人： Zvi Galani ,  Michael J. Bianchini ,  Raymond C. Waterman, Jr.

发明人： Zvi Galani ,  Michael J. Bianchini ,  Raymond C. Waterman, Jr.

IPC分类号： H03B5/20 ,  H03B1/00 ,  H03B1/04 ,  H03B5/18 ,  H03B9/14 ,  H03L7/02

CPC分类号： H03B9/142 ,  H03B5/1882 ,  H03B2009/126 ,  H03B2200/0088 ,  H03B2200/009 ,  H03B2201/0241 ,  H03B2201/033 ,  H03B2202/076 ,  H03B5/1841

摘要： An oscillator providing predictable oscillator modulation sensitivity includes an amplifier and a feedback circuit disposed about the amplifier. The feedback circuit includes a resonator having a first port and a second port and a voltage-controlled phase shifter having an input port, an output port and a control port, the input port of the voltage-controlled phase shifter connected to the output port of the amplifier and the output port of the voltage-controlled phase shifter coupled to a port of the resonator. The oscillator further includes a circuit, responsive to signals from the output of the voltage-controlled phase shifter and the first port of the resonator, to provide a control signal to the control port of the voltage-controlled phase shifter for degenerating low frequency FM noise arising within the amplifier.

公开(公告)号：US08031018B2

公开(公告)日：2011-10-04

申请号：US12159056

申请日：2007-02-21

申请人： Gerhard Kahmen

发明人： Gerhard Kahmen

IPC分类号： H03B5/18 ,  H03C3/22

CPC分类号： H03B5/1231 ,  H03B5/1203 ,  H03B5/1243 ,  H03B2200/0048 ,  H03B2200/005 ,  H03B2200/0052 ,  H03B2201/033

摘要： An oscillator including a resonator with at least one first tuneable element, with which a resonant frequency of the resonator can be varied. The oscillator further includes an amplifier, which provides an amplification element, connected to the resonator at a coupling position. The amplifier provides a second tuneable element, by which a complex resistance, which the amplifier provides at the coupling position, is variable in a frequency-dependent manner.

摘要翻译： 包括具有至少一个第一可调谐元件的谐振器的振荡器，谐振器的谐振频率可以通过该振荡器变化。 振荡器还包括放大器，其提供放大元件，其在耦合位置连接到谐振器。 放大器提供第二个可调谐元件，通过该元件，放大器在耦合位置提供的复电阻可以以频率依赖的方式变化。

公开(公告)号：US20080297266A1

公开(公告)日：2008-12-04

申请号：US12159056

申请日：2007-02-21

申请人： Gerhard Kahmen

发明人： Gerhard Kahmen

IPC分类号： H03B5/18

CPC分类号： H03B5/1231 ,  H03B5/1203 ,  H03B5/1243 ,  H03B2200/0048 ,  H03B2200/005 ,  H03B2200/0052 ,  H03B2201/033

摘要： An oscillator including a resonator with at least one first tuneable element, with which a resonant frequency of the resonator can be varied. The oscillator further includes an amplifier, which provides an amplification element, connected to the resonator at a coupling position. The amplifier provides a second tuneable element, by which a complex resistance, which the amplifier provides at the coupling position, is variable in a frequency-dependent manner.

摘要翻译： 包括具有至少一个第一可调谐元件的谐振器的振荡器，谐振器的谐振频率可以通过该振荡器变化。 振荡器还包括放大器，其提供放大元件，其在耦合位置连接到谐振器。 放大器提供第二个可调谐元件，通过该元件，放大器在耦合位置提供的复电阻可以以频率依赖的方式变化。

公开(公告)号：US07190232B1

公开(公告)日：2007-03-13

申请号：US10747521

申请日：2003-12-29

申请人： Swee-Ann Teo

发明人： Swee-Ann Teo

IPC分类号： H03B5/12

CPC分类号： H03L5/00 ,  H03B5/1215 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2200/0062 ,  H03B2201/031 ,  H03B2201/033 ,  H03L7/099

摘要： A voltage-controlled oscillator (VCO) circuit includes first, second, third, and fourth transistors, each with a first terminal, a second terminal, and a control terminal. The first terminal of the first transistor communicates with the first terminal of the second transistor. The control terminals of the third and fourth transistors communicate with the second terminals of the first and second transistors, respectively. The first terminals of the third and fourth transistors communicate with the control terminals of the first and second transistors, respectively. First ends of first and second capacitances communicate with the second terminals of the first and second transistors, respectively. Second ends of the first and second capacitances communicate with the control terminals of the first and second transistors, respectively.

摘要翻译： 压控振荡器（VCO）电路包括第一，第二，第三和第四晶体管，每个具有第一端子，第二端子和控制端子。 第一晶体管的第一端与第二晶体管的第一端连通。 第三和第四晶体管的控制端分别与第一和第二晶体管的第二端相连。 第三和第四晶体管的第一端子分别与第一和第二晶体管的控制端子通信。 第一和第二电容的第一端分别与第一和第二晶体管的第二端子通信。 第一和第二电容的第二端分别与第一和第二晶体管的控制端相通。

公开(公告)号：US5218313A

公开(公告)日：1993-06-08

申请号：US767012

申请日：1991-09-27

申请人： Hiroshi Saeki ,  Hatsuo Motoyama

发明人： Hiroshi Saeki ,  Hatsuo Motoyama

IPC分类号： H03B1/00 ,  H03B5/12 ,  H03B19/20 ,  H03B21/01 ,  H03L7/093 ,  H03L7/113

CPC分类号： H03L7/113 ,  H03B19/20 ,  H03B21/01 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1293 ,  H03L7/093 ,  H03B2200/0034 ,  H03B2200/0042 ,  H03B2201/0208 ,  H03B2201/033

摘要： To output desired high purity signals, a frequency synthesizer was made to synthesize reference signals from a first and second signal generators in the same frequency band as a desired frequency band. Thereby, the resolution of the frequency synthesizer becomes twice the step .DELTA.F. Also, the frequency synthesizer can interpolate the step size of the first signal generator with half the number of steps. While, heretofore, the 100 MHz step size was interpolated with Fq=0, 10, 20, 30, 40 and 50 MHz, Fq=0, 20, 40 MHz interpolation is made possible. This permits the synthesis of 580 MHz to 1280 MHz. In this case, however, the minimum difference between the sum and difference frequencies from the first and second signal generators is 40 MHz and the lowest frequency is 20 MHz. Thus, depending on mixer isolation, the spurious measures become difficult. The frequency synthesizer of the present invention pays attention to the fact that 20 MHz step signals can be synthesized at frequencies which are integral multiples of Fq (multiples of 0 and 5 are excluded). When two-fold Fq is used, the minimum difference between the sum and difference frequencies output from a mixer is 80 MHz and the lowest used frequency is 40 MHz. The spurious measures by a PLL circuit becomes easy. A frequency detector forces the free-running frequency of a VCO included the PLL circuit. Control Data P and Q to the first and second signal generators are supplied from a control section based on data Fi set by a frequency setting section.

摘要翻译： 为了输出期望的高纯度信号，频率合成器在与所需频带相同的频带中合成来自第一和第二信号发生器的参考信号。 因此，频率合成器的分辨率变为DELTA F的两倍。此外，频率合成器可以用步数的一半内插第一信号发生器的步长。 然而，迄今为止，使用Fq = 0,10,20,30,40和50MHz对100MHz步长进行内插，可以实现Fq = 0,20,40MHz内插。 这允许合成580MHz至1280MHz。 然而，在这种情况下，来自第一和第二信号发生器的和频和差频之间的最小差为40MHz，最低频率为20MHz。 因此，根据混频器隔离，杂散措施变得困难。 本发明的频率合成器注意到可以以Fq的整数倍的频率合成20MHz的步进信号（排除0和5的倍数）的事实。 当使用双重Fq时，从混频器输出的和频和差频之间的最小差为80 MHz，最低使用频率为40 MHz。 PLL电路的杂散措施变得容易。 频率检测器强制包括PLL电路的VCO的自由运行频率。 基于由频率设定部设定的数据Fi，从控制部分向第一和第二信号发生器提供控制数据P和Q。

公开(公告)号：US07501907B1

公开(公告)日：2009-03-10

申请号：US11717576

申请日：2007-03-13

申请人： Swee-Ann Teo

发明人： Swee-Ann Teo

IPC分类号： H03B5/12 ,  H03L7/099

CPC分类号： H03L5/00 ,  H03B5/1215 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2200/0062 ,  H03B2201/031 ,  H03B2201/033 ,  H03L7/099

摘要： A voltage-controlled oscillator (VCO) circuit includes first, second, third, and fourth transistors, wherein said third and fourth transistors bias the second and first transistors, respectively. First and second capacitances communicate with the first, second, third, and fourth transistors. A first input receives a first capacitance adjustment signal. At least one second input receives a second capacitance adjustment signal. The first capacitance has a first end connected to he first input and the third transistor. The second capacitance has a first end connected to the second input and the fourth transistor.

摘要翻译： 压控振荡器（VCO）电路包括第一，第二，第三和第四晶体管，其中所述第三和第四晶体管分别偏置第二和第一晶体管。 第一和第二电容与第一，第二，第三和第四晶体管通信。 第一输入端接收第一电容调整信号。 至少一个第二输入接收第二电容调整信号。 第一电容具有连接到第一输入端和第三晶体管的第一端。 第二电容具有连接到第二输入端和第四晶体管的第一端。

公开(公告)号：US5254955A

公开(公告)日：1993-10-19

申请号：US727840

申请日：1991-07-09

申请人： Hiroshi Saeki ,  Hatsuo Motoyama

发明人： Hiroshi Saeki ,  Hatsuo Motoyama

IPC分类号： H03B1/00 ,  H03B5/12 ,  H03B19/20 ,  H03B21/01 ,  H03L7/093 ,  H03L7/113 ,  H03K5/13 ,  H03K5/22

CPC分类号： H03L7/113 ,  H03B19/20 ,  H03B21/01 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1293 ,  H03L7/093 ,  H03B2200/0034 ,  H03B2200/0042 ,  H03B2201/0208 ,  H03B2201/033

摘要： A PLL circuit comprises a voltage controlled oscillator responsive to a control signal to output an output signal having a variable oscillation frequency; a phase detector for making a phase comparison between the output signal from the voltage controlled oscillator and a reference signal, and for outputting an output error signal; an integrator for integrating the output error signal from the phase detector to extract a direct current variable component contained in the output error signal, the integrator having a first cutoff frequency; and a loop filter for feeding the direct current variable component from the integrator to the voltage controlled oscillator as the control signal to synchronize the output signal from the voltage controlled oscillator with the reference signal. An alternate current coupling circuit is provided for adding only an alternate current component contained in the output error signal from the phase detector to the control signal for feeding to the voltage controlled oscillator; and a compensating circuit is inserted in an alternate current signal path of the alternate current coupling circuit. The compensating circuit is inserted in an alternate current signal path of the alternate current coupling circuit. The compensating circuit has a second cutoff frequency exceeding the first cutoff frequency of the integrator, so that a wide band characteristic is obtained, and SSB phase noise suppression is improved.

摘要翻译： PLL电路包括响应于控制信号的压控振荡器以输出具有可变振荡频率的输出信号; 相位检测器，用于在来自压控振荡器的输出信号和参考信号之间进行相位比较，并输出输出误差信号; 积分器，用于积分来自相位检测器的输出误差信号，以提取包含在输出误差信号中的直流可变分量，积分器具有第一截止频率; 以及环路滤波器，用于将来自积分器的直流可变分量馈送到压控振荡器作为控制信号，以将来自压控振荡器的输出信号与参考信号同步。 提供交流电流耦合电路，用于仅将来自相位检测器的输出误差信号中包含的交流电流分量与用于馈送到压控振荡器的控制信号相加; 并且补偿电路被插入到交流电流耦合电路的交流信号路径中。 补偿电路插入交流电流耦合电路的交流电流信号路径。 补偿电路具有超过积分器的第一截止频率的第二截止频率，从而获得宽带特性，并提高SSB相位噪声抑制。