公开(公告)号：US4733199A

公开(公告)日：1988-03-22

申请号：US012740

申请日：1987-02-09

Applicant: Amarpal S. Khanna

Inventor： Amarpal S. Khanna

IPC: H03B1/00 ,  H03B5/18

CPC classification number: H03B5/1876 ,  H03B2200/0024 ,  H03B2200/0048 ,  H03B2200/0056 ,  H03B2201/0258 ,  H03B5/1852

Abstract: A switchable, parallel-feedback, multi-frequency dielectric resonator oscillator that generates microwave energy at any of several available frequencies is disclosed. The oscillator includes an amplifier that is operable for oscillation at a frequency determined by a parallel feedback dielectric resonator connected between its output and input terminals, and a switching circuit for selectively connecting any one of a plurality of dielectric resonators to the input terminal of the amplifier. The oscillation frequency of the oscillator is determined by a resonant frequency of whichever of the dielectric resonators is connected to the input terminal of the amplifier through the switching circuit.

Abstract translation: 公开了一种可切换并联反馈的多频介质谐振器振荡器，其以几个可用频率中的任何一个产生微波能量。 该振荡器包括放大器，该放大器可操作以由连接在其输出端和输入端之间的并联反馈介质谐振器所确定的频率进行振荡;以及切换电路，用于将多个介质谐振器中的任何一个选择性地连接到放大器的输入端 。 振荡器的振荡频率由通过开关电路连接到放大器的输入端的任何一个介质谐振器的谐振频率决定。

公开(公告)号：US4554516A

公开(公告)日：1985-11-19

申请号：US676043

申请日：1984-11-29

Applicant: Ganesh R. Basawapatna

Inventor： Ganesh R. Basawapatna

IPC: H03B1/00 ,  H03B1/04 ,  H03B5/18 ,  H03B19/14 ,  H03B23/00

CPC classification number: H03B5/1882 ,  H03B19/14 ,  H03B2201/0241 ,  H03B2201/0258 ,  H03B2202/05 ,  H03B5/1888

Abstract: An electronically tunable solid-state microwave frequency source comprises a transmission-absorption filter incorporated within a magnetic structure. The transmission-absorption filter is employed with a tunable solid-state oscillator and tunable solid-state multiplier to provide a continuously tunable microwave signal source with enhanced spurious signal attenuation over a multiple-octave tuning range. The filter structure comprises a sphere of monocrystalline garnet such as yttrium iron garnet (YIG) and two coupling loops disposed in the field region of an adjustable field DC magnet. The coupling loops are disposed orthogonal to the magnetic field and to each other. In a specific embodiment the first coupling loop is operative to receive at its input the fundamental frequency signal and at its output is grounded, and the second coupling loop is operative to receive a harmonic input signal at its input and to convey a desired output signal at its output. The magnetic sphere of the transmission-absorption filter typically shares the magnetic field of the YIG sphere used to produce the output of the tuned oscillator. The transmission-absorption filter is incorporated into a source including a switch, a fundamental frequency amplifier and a harmonic frequency amplifier.

Abstract translation: 电子可调谐固体微波频率源包括结合在磁性结构内的透射吸收滤光片。 传输吸收滤波器与可调谐固态振荡器和可调谐固态倍增器一起使用，以在多倍频程调谐范围内提供具有增强的寄生信号衰减的连续可调微波信号源。 过滤器结构包括单晶石榴石球，例如钇铁石榴石（YIG）和设置在可调直径磁体的场区域中的两个耦合回路。 耦合回路与磁场和彼此正交设置。 在具体实施例中，第一耦合回路可操作以在其输入处接收基频信号，并且在其输出端接地，并且第二耦合回路可操作以在其输入处接收谐波输入信号，并在 其输出。 透射吸收滤光器的磁球通常共享用于产生调谐振荡器的输出的YIG球的磁场。 传输吸收滤波器被并入包括开关，基频放大器和谐波放大器的源。

公开(公告)号：US09515684B2

公开(公告)日：2016-12-06

申请号：US14971086

申请日：2015-12-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tuan Thanh Ta ,  Akihide Sai ,  Masanori Furuta

IPC: H04B1/06 ,  H04B1/00 ,  H03B9/14 ,  H03F3/19 ,  H04B1/16

CPC classification number: H04B1/0007 ,  H03B5/12 ,  H03B9/141 ,  H03B2201/0208 ,  H03B2201/0258 ,  H03F3/19 ,  H03F2200/294 ,  H03L7/0991 ,  H03L7/22 ,  H03L2207/06 ,  H04B1/16

Abstract: According to an embodiment, a receiver includes a voltage controlled oscillator, a frequency-to-digital converter and an input sensitivity controller. In the voltage controlled oscillator, input sensitivity relative to a baseband signal is controlled based on an input sensitivity control signal. The voltage controlled oscillator oscillates at a frequency controlled by a voltage of the baseband signal to generate an oscillation signal. The frequency-to-digital converter performs frequency-to-digital conversion of the oscillation signal to generate a digital signal. The input sensitivity controller generates the input sensitivity control signal based on the digital signal.

Abstract translation: 根据实施例，接收机包括压控振荡器，频数转换器和输入灵敏度控制器。 在压控振荡器中，基于输入灵敏度控制信号来控制相对于基带信号的输入灵敏度。 压控振荡器以由基带信号的电压控制的频率振荡以产生振荡信号。 频数转换器执行振荡信号的频数转换以产生数字信号。 输入灵敏度控制器根据数字信号产生输入灵敏度控制信号。

公开(公告)号：US08970315B2

公开(公告)日：2015-03-03

申请号：US13598429

申请日：2012-08-29

Applicant: Hyman Shanan

Inventor： Hyman Shanan

IPC: H03B5/12 ,  H03B1/04

CPC classification number: H03B1/04 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/005 ,  H03B2200/0062 ,  H03B2200/009 ,  H03B2201/0258 ,  H03B2201/0266 ,  H03B2202/03

Abstract: Apparatus and methods are disclosed related to an oscillator that includes a sustaining amplifier. One such apparatus includes a resonant circuit configured to operate at a resonant frequency, a sustaining amplifier, and a passive impedance network. The resonant circuit can have a first terminal and a second terminal. The sustaining amplifier can include at least a first switch configured to drive the first terminal of the resonant circuit in response to an input at a first control terminal of the first switch. The passive impedance network can be configured to pass a bias to the first control terminal, such as a gate of a field effect transistor, of the first switch. The passive impedance network can be electrically coupled to the second terminal of the resonant circuit and can include at least one inductor.

Abstract translation: 公开了涉及包括维持放大器的振荡器的装置和方法。 一种这样的设备包括被配置为以谐振频率操作的谐振电路，维持放大器和被动阻抗网络。 谐振电路可以具有第一端子和第二端子。 支持放大器可以包括至少第一开关，其被配置为响应于第一开关的第一控制端处的输入来驱动谐振电路的第一端子。 无源阻抗网络可以被配置为将偏置传递到第一开关的第一控制端子，例如场效应晶体管的栅极。 无源阻抗网络可以电耦合到谐振电路的第二端子并且可以包括至少一个电感器。

公开(公告)号：US20140091872A1

公开(公告)日：2014-04-03

申请号：US14036413

申请日：2013-09-25

Applicant: Seiko Epson Corporation

Inventor： Yosuke ITASAKA

IPC: H03L7/099

CPC classification number: H03L7/099 ,  H03B5/362 ,  H03B5/364 ,  H03B2201/0258 ,  H03J2200/10 ,  H03L1/028

Abstract: An oscillator circuit includes a terminal T1, a terminal T2, a variable capacitance element having one end connected to the terminal T1, and a capacitance value varying in accordance with a frequency control signal, a variable capacitance element having one end connected to the terminal T2, and a capacitance value varying in accordance with the frequency control signal, a load capacitance circuit connected to the terminal T1, and a load capacitance circuit connected to the terminal T2, and oscillates a resonator element at a frequency corresponding to the frequency control signal. The oscillator circuit is capable of adjusting the capacitance values of the load capacitance circuits, a reference voltage (the electrical potential of the terminal T1), and a reference voltage (the electrical potential of the terminal T2) in accordance with configuration information.

Abstract translation: 振荡器电路包括端子T1，端子T2，具有连接到端子T1的一端的可变电容元件和根据频率控制信号而变化的电容值;可变电容元件，其一端连接到端子T2 ，以及根据频率控制信号而变化的电容值，连接到端子T1的负载电容电路和连接到端子T2的负载电容电路，并且以对应于频率控制信号的频率振荡谐振元件。 振荡电路能够根据配置信息调整负载电容电路的电容值，参考电压（端子​​T1的电位）以及基准电压（端子​​T2的电位）。

公开(公告)号：US20030052741A1

公开(公告)日：2003-03-20

申请号：US10244932

申请日：2002-09-16

Applicant: Alps Electric Co., Ltd.

Inventor： Yutaka Chiba ,  Hiroki Noumi ,  Yasuhiro Ikarashi

IPC: H03B001/00

CPC classification number: H03B5/1847 ,  H03B2201/0208 ,  H03B2201/0258

Abstract: A voltage controlled oscillator comprises an oscillation transistor, a varactor diode, a resonance circuit which is coupled to the oscillation transistor, and a switching diode which changes over a resonance frequency of the resonance circuit, wherein the resonance circuit includes a first strip conductor which is served for grounding a cathode of the varactor diode in terms of direct current and a second strip conductor which is served for coupling a cathode of the varactor diode with the oscillation transistor, the switching diode is connected to the first strip conductor in parallel in terms of high frequency and has a cathode thereof grounded, and a control voltage which is served for changing a capacitive value of the varactor diode is applied to a connection point between the cathode of the varactor diode and the second strip conductor through a choke inductor.

Abstract translation: 压控振荡器包括振荡晶体管，变容二极管，耦合到振荡晶体管的谐振电路和转换谐振电路的谐振频率的开关二极管，其中谐振电路包括第一条导体， 用于将变容二极管的阴极与直流电接地，第二带状导体用于将变容二极管的阴极与振荡晶体管耦合，开关二极管与第一带状导体并联连接 高频并且其阴极接地，并且用于改变变容二极管的电容值的控制电压通过扼流电感器施加到变容二极管的阴极与第二带状导体之间的连接点。

公开(公告)号：US06420939B1

公开(公告)日：2002-07-16

申请号：US09718857

申请日：2000-11-22

Applicant: Alfred Selz

Inventor： Alfred Selz

IPC: H03B508

CPC classification number: H03J5/244 ,  H03B5/08 ,  H03B2201/0208 ,  H03B2201/0258

Abstract: The oscillator having a tunable resonant circuit has a switch for expanding the tuning range, which is connected in series with two coils jointly determining the oscillation frequency of the resonant circuit. A further coil, which is coupled to the resonant circuit in the region of the switch, is used to supply a switching voltage for the switch. In this arrangement, the other end of this third coil is coupled to a reference potential, with a capacitor, which acts as a short circuit for radio-frequency purposes, decoupling the switching voltage from the reference potential. Since the switching voltage is in this case coupled to an oscillator circuit node which is earthed for radio-frequency purposes, it is of no significance in this case which resistor is used to couple the switching voltage. This means that the resonant circuit is not resistively damped by the connection of the switching voltage. Coupled to the other end of the switching diode is a further component, preferably a fourth coil, which has the same inductance as the third coil, in order to dissipate the switching voltage. The first two coils are advantageously of the same size, so that this circuit coil jointly determining the oscillation frequency is earthed by the third coil exactly at its center. This means that the quality factor and the oscillation properties of the resonant circuit are not adversely affected.

Abstract translation: 具有可调谐谐振电路的振荡器具有用于扩展调谐范围的开关，该调谐范围与共同确定谐振电路的振荡频率的两个线圈串联连接。 在开关区域中耦合到谐振电路的另一个线圈用于为开关提供开关电压。 在这种布置中，该第三线圈的另一端通过电容器耦合到参考电位，该电容充当用于射频目的的短路，使开关电压与参考电位相分离。 由于在这种情况下，开关电压耦合到接地以用于射频目的的振荡器电路节点，所以在这种情况下使用哪个电阻来耦合开关电压是没有意义的。 这意味着谐振电路不会被开关电压的连接电阻衰减。 耦合到开关二极管的另一端是具有与第三线圈相同的电感的另一部件，优选地是第四线圈，以便消耗开关电压。 前两个线圈有利地具有相同的尺寸，使得共同确定振荡频率的该电路线圈由第三线圈正好在其中心处接地。 这意味着谐振电路的品质因数和振荡特性不会受到不利影响。

公开(公告)号：US20010050596A1

公开(公告)日：2001-12-13

申请号：US09870816

申请日：2001-05-31

Applicant: Alps Electric Co., Ltd.

Inventor： Kazuhiro Nakano ,  Hiroki Noumi ,  Isao Hasegawa

IPC: H03B005/12 ,  H03B005/18 ,  H03J005/24 ,  H03J007/08

CPC classification number: H03B5/1847 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1262 ,  H03B2201/0208 ,  H03B2201/0258 ,  H03B2201/038

Abstract: In a three-band switching oscillator, a switching circuit is provided to switch the operating conditions of first and second voltage-controlled oscillator and to switching an oscillation frequency band of said first voltage-controlled oscillator, and is composed of a first switch for supplying a current to place the first voltage-controlled oscillator into operation, a second switch for supplying a current to place the second voltage-controlled oscillator into operation, and first and second switching terminals for receiving switching voltages. The switching circuit switches the first switch in accordance with a switching voltage inputted to the first switching terminal and switches an oscillation frequency band in accordance with a switching voltage inputted to the second switching terminal, while only when a high-level switching voltage is inputted to the second switching terminal, the second switch is placed into an open condition by a high-level switching voltage inputted to the first switching terminal and placed into a closed condition by a low-level switching voltage inputted thereto, and when a low-level switching voltage is inputted to the second switching terminal, the second switch is placed into the open condition irrespective of the switching voltage inputted to the first switching terminal.

Abstract translation: 在三频开关振荡器中，提供开关电路来切换第一和第二压控振荡器的工作条件，并切换所述第一压控振荡器的振荡频带，并由第一开关供给 用于将第一压控振荡器置于运行状态的电流，用于提供电流以使第二压控振荡器工作的第二开关，以及用于接收开关电压的第一和第二开关端子。 开关电路根据输入到第一开关端子的开关电压来切换第一开关，并且根据输入到第二开关端子的开关电压来切换振荡频带，而仅当高电平切换电压被输入到 第二开关端子，第二开关被输入到第一开关端子的高电平开关电压置于开路状态，并通过输入到其的低电平开关电压置于闭合状态，并且当低电平开关 电压被输入到第二开关端子，第二开关被置于打开状态，而与输入到第一开关端子的开关电压无关。

公开(公告)号：US06194974B1

公开(公告)日：2001-02-27

申请号：US09359743

申请日：1999-07-23

Applicant: Allen Craig ,  Olaf Rostbakken

Inventor： Allen Craig ,  Olaf Rostbakken

IPC: H03B500

CPC classification number: H03B5/1847 ,  H03B2201/0258 ,  H03J5/244

Abstract: In a voltage controlled oscillator in which an operation frequency is determined by applying a tuning voltage to a resonant circuit connected to a control terminal of a transistor (T1), the resonant circuit has zeroth and first varactor diodes (D0, D1) which can serve as capacitance elements. A selection voltage is applied to an anode of the first varactor diode through a band selection terminal (1). The first vatactor diode has a capacitance varying in response to the value of the selection voltage. The variation of the capacitance causes a change of a frequency band of the voltage controlled oscillator. A tuning voltage is applied through a tuning terminal (2).

Abstract translation: 在通过对连接到晶体管（T1）的控制端子的谐振电路施加调谐电压来确定工作频率的压控振荡器中，所述谐振电路具有可以服务的第零和第一变容二极管（D0，D1） 作为电容元件。 选择电压通过频带选择端子（1）施加到第一变容二极管的阳极。 第一种生血管二极管具有响应于选择电压的值而变化的电容。 电容的变化导致压控振荡器的频带的变化。 通过调谐端子（2）施加调谐电压。

公开(公告)号：US5150080A

公开(公告)日：1992-09-22

申请号：US806956

申请日：1991-12-12

Applicant: Michael J. Bianchini ,  Christopher T. Lyons ,  Richard A. Michalik ,  Raymond C. Waterman, Jr.

Inventor： Michael J. Bianchini ,  Christopher T. Lyons ,  Richard A. Michalik ,  Raymond C. Waterman, Jr.

IPC: H01P7/10 ,  H03B1/00 ,  H03B1/04 ,  H03B5/18 ,  H03L7/02

CPC classification number: H03L7/02 ,  H03B5/1864 ,  H03B2200/0024 ,  H03B2200/0048 ,  H03B2200/0056 ,  H03B2200/0072 ,  H03B2200/0088 ,  H03B2200/009 ,  H03B2201/0258 ,  H03B2202/025 ,  H03B2202/076 ,  H03B5/1841

Abstract: An oscillator includes an amplifier having an input and an output and a feedback circuit disposed between the input and the output of the amplifier. The feedback circuit includes a plurality of resonators and a pair of switches. Each switch includes a first port and multiple connectable ports, the multiple connectable ports of each switch connected to a corresponding one of the plurality of resonators. The feedback circuit further includes a voltage-controlled phase shifter disposed in series with the switches. The oscillator further includes a discriminator circuit, responsive to signals from the feedback circuit, for providing a control signal to the voltage-controlled phase shifter for degenerating low frequency noise within the oscillator. With such an arrangement, high Q low noise resonators can be switched in and out of the circuit thus providing improved phase noise performance at high power levels with the desirable frequency agility required for a microwave oscillator.