公开(公告)号：US4990866A

公开(公告)日：1991-02-05

申请号：US494211

申请日：1990-03-14

Applicant: Michel Martheli

Inventor： Michel Martheli

IPC: H03B5/12 ,  H03B1/00 ,  H03B5/18

CPC classification number: H03B5/1847 ,  H03B2200/004 ,  H03B2201/0208

Abstract: A tuning circuit (4) for a VCO includes a coarse tuning section (6) and a fine tuning section (7). The coarse tuning section includes three varactors (13, 14, 15) connected in series. These varactors together with their housings are designed to operate at considerably lower frequencies than the VCO, so that they behave as inductances at the VCO frequency. A capacitance (16) connected in parallel with the varactor inductances forms a resonant circuit therewith and serves to widen the tuning band of the VCO in adjustable manner. A capacitance (17) connected between the coarse and fine tuning sections adjusts the central oscillation frequency. An adjustable transmission line (12) in the fine tuning section adjusts fine tuning sensitivity.

Abstract translation: 用于VCO的调谐电路（4）包括粗调谐部分（6）和微调部分（7）。 粗调部分包括串联连接的三个变容二极管（13,14,15）。 这些变容二极管及其外壳设计为以比VCO更低的频率工作，因此它们在VCO频率下表现为电感。 与变容二极管电感并联连接的电容（16）与其形成谐振电路，用于以可调节的方式加宽VCO的调谐频带。 连接在粗调和微调部分之间的电容（17）调节中心振荡频率。 微调部分中的可调节传输线（12）调节微调灵敏度。

公开(公告)号：US4797638A

公开(公告)日：1989-01-10

申请号：US30852

申请日：1987-04-10

Applicant: Akira Usui ,  Kazuhiko Kubo ,  Hiroyuki Nagai

Inventor： Akira Usui ,  Kazuhiko Kubo ,  Hiroyuki Nagai

IPC: H03B1/00 ,  H03B5/18 ,  H03B5/12

CPC classification number: H03B5/1847 ,  H03B2200/0034 ,  H03B2200/004 ,  H03B2201/0208

Abstract: The local oscillation circuit in accordance with the present invention is characterized as follows. The collector of an oscillation transistor is grounded for atlernating current. A series resonance circuit consisting of a variable capacitance diode and a resonator is connected to the base of the oscillation transistor. The other end of the series resonance circuit is grounded for alternating current. The emitter of the oscillation transistor is connected to the collector of an amplifying transistor. The emitter is grounded through a capacitor that removes or reduces the a.c. component and passes the d.c. component. An oscillation signal taken from the emitter of the oscillation transistor is fed to the base of the amplifier transistor. A local oscillation output signal is taken from the collector of the amplifier transistor, and bias potential to the amplifier transistor is impressed from the power source to the base of the amplifier transistor. With this arrangement, the current in the oscillation transistor is stabilized, even with a change in the d.c. control voltage supplied to the resonance circuit, to improve the reliability and performance of the circuit.

Abstract translation: PCT No.PCT / JP86 / 00359 Sec。 371日期：1987年4月10日 102（e）日期1987年4月10日PCT提交1986年7月14日PCT公布。 公开号WO87 / 00993 日本1987年2月12日。根据本发明的本地振荡电路的特征如下。 振荡晶体管的集电极接地，用于使电流过大。 由可变电容二极管和谐振器组成的串联谐振电路连接到振荡晶体管的基极。 串联谐振电路的另一端为交流电接地。 振荡晶体管的发射极连接到放大晶体管的集电极。 发射极通过电容器接地，可消除或减少电流。 组件并通过d.c. 零件。 从振荡晶体管的发射极取得的振荡信号被馈送到放大晶体管的基极。 从放大器晶体管的集电极获取本地振荡输出信号，并且将放大器晶体管的偏置电压从电源施加到放大器晶体管的基极。 通过这种布置，即使在直流电压的变化中，振荡晶体管中的电流也稳定。 提供给谐振电路的控制电压，以提高电路的可靠性和性能。

公开(公告)号：US4783849A

公开(公告)日：1988-11-08

申请号：US935439

申请日：1986-11-26

Applicant: Max W. Muterspaugh

Inventor： Max W. Muterspaugh

IPC: H04B1/26 ,  H03B1/00 ,  H03B5/12 ,  H04B1/18 ,  H03J1/16

CPC classification number: H03B5/1228 ,  H03B5/1203 ,  H03B5/1243 ,  H03B5/1296 ,  H03B2200/004 ,  H03B2200/0048 ,  H03B2201/0208

Abstract: The RF stage and local oscillator stage of a tuner both include respective cascode connected dual gate field effect transistors as the amplifying device and similarly configured tuned circuits coupled to the first gate electrodes of the field effect transistors. The tracking characteristics of the tuner are enhanced due to the similar amplifier and tuned circuit configurations.

Abstract translation: 调谐器的RF级和本地振荡器级都包括各自的共源共栅连接的双栅场效应晶体管作为放大器件，并且类似配置的调谐电路耦合到场效应晶体管的第一栅电极。 由于类似的放大器和调谐电路配置，调谐器的跟踪特性得到增强。

公开(公告)号：US4730169A

公开(公告)日：1988-03-08

申请号：US895982

申请日：1986-08-14

Applicant: Hsiu Y. Li

Inventor： Hsiu Y. Li

IPC: H03B9/14 ,  H03B20060101 ,  H03B1/00 ,  H03B7/08 ,  H03B9/12 ,  H03L7/099 ,  H03L7/24

CPC classification number: H03B9/145 ,  H03B2200/0074 ,  H03B2201/015 ,  H03B2201/0208 ,  H03B7/08

Abstract: A four-diode bridge is positioned within the cavity of a Gunn diode oscillator. A subharmonic signal is applied to the diode bridge and the diode bridge couples an odd harmonic of the injected signal into the cavity. The cavity is thus caused to resonate at the odd harmonic of the injected signal. The injected signal can be changed using a frequency synthesizer in order to provide a microwave oscillator with multiple-channel operation. The diode bridge provides a feedback signal indicative of the phase of cavity oscillation. The feedback signal is applied to a varactor which pretunes the Gunn diode oscillator and thereby provides phase-locked control.

Abstract translation: 四极二极管桥位于耿氏二极管振荡器的腔内。 次谐波信号施加到二极管电桥，二极管电桥将注入信号的奇次谐波耦合到空腔中。 因此，腔体以注入信号的奇次谐波发生谐振。 可以使用频率合成器改变注入的信号，以便提供具有多通道操作的微波振荡器。 二极管桥提供表示腔振荡相位的反馈信号。 将反馈信号应用于预先设定耿氏二极管振荡器的变容二极管，从而提供锁相控制。

公开(公告)号：US4728909A

公开(公告)日：1988-03-01

申请号：US924548

申请日：1986-10-29

Applicant: Marie-Irene Rudelle

Inventor： Marie-Irene Rudelle

IPC: H03B1/00 ,  H03B5/12 ,  H03B5/18 ,  H03C3/22

CPC classification number: H03B5/1852 ,  H03B2200/004 ,  H03B2200/0086 ,  H03B2201/0208 ,  H03C2200/0079 ,  H03C3/22

Abstract: A high-frequency modulator which is linearly modulated in a frequency range around a center frequency and comprises a high-gain field effect transistor whose output is fed-back to the input from a coupler constituted by two relatively fine lines which are sufficiently remote from each other to provide that at the input of the transistor the majority of the high power available at its output is reinjected, and thus a high external Q factor is obtained. The modulation circuit which is arranged in parallel with the feedback network includes a varicap which is arranged in series with three line elements and a fixed capacitor calculated for optimizing the linearity of the frequency modulation as a function of the control voltage of the varicap. The circuit may be used for example, in equipment such as radio altimeter sources or proximity fuses, auto-directional systems and long-range radar.

Abstract translation: 一种高频调制器，其在中心频率附近的频率范围内线性调制，并且包括高增益场效应晶体管，其输出从耦合器反馈到来自由两个足够远离每个 另外提供在晶体管的输入处，其输出处可用的大部分高功率被重新注入，从而获得高的外部Q因子。 与反馈网络并联设置的调制电路包括与三个线路元件串联布置的变容二极管和用于优化作为变容二极管的控制电压的函数的频率调制的线性度的固定电容器。 该电路可以用于例如无线电高度计源或接近保险丝，自动定向系统和远程雷达等设备中。

公开(公告)号：US4721927A

公开(公告)日：1988-01-26

申请号：US10805

申请日：1987-02-04

Applicant: Toshio Aota ,  Toshiki Baba

Inventor： Toshio Aota ,  Toshiki Baba

IPC: H03C3/09 ,  H03B1/00 ,  H03B5/12 ,  H03B5/18 ,  H03C3/22

CPC classification number: H03C3/222 ,  H03B5/1847 ,  H03B2200/004 ,  H03B2200/0092 ,  H03B2201/0208

Abstract: A voltage-controlled-oscillator with a modulator, comprising a first variable capacitance diode and a second variable capacitance diode. The first variable capacitance diode is connected in series with the second variable capacitance diode to form a resonance device, wherein capacitance of the first variable capacitance diode is controlled by applying a reverse bias voltage and an oscillation frequency control voltage to both ends of the first variable capacitance diode, and capacitance of the second variable capacitance diode is controlled in a reverse direction to changes in the capacitance of the first variable capacitance diode with respect to the oscillation frequency control voltage by applying the oscillation frequency control voltage and a modulation signal to both ends of the second variable capacitance diode to thereby provide a frequency modulated wave.

Abstract translation: 一种具有调制器的压控振荡器，包括第一可变电容二极管和第二可变电容二极管。 第一可变电容二极管与第二可变电容二极管串联连接以形成谐振装置，其中通过向第一变量的两端施加反向偏置电压和振荡频率控制电压来控制第一可变电容二极管的电容 电容二极管和第二可变电容二极管的电容通过将振荡频率控制电压和调制信号施加到两端而相对于第一可变电容二极管的电容相对于振荡频率控制电压的变化而反向控制 的第二可变电容二极管，从而提供频率调制波。

公开(公告)号：US4684904A

公开(公告)日：1987-08-04

申请号：US816596

申请日：1986-01-06

Applicant: Grant H. Watkins ,  Lester K. Staley

Inventor： Grant H. Watkins ,  Lester K. Staley

IPC: H03B1/00 ,  H03B1/04 ,  H03B5/18 ,  H03B5/12

CPC classification number: H03B5/1847 ,  H03B2200/004 ,  H03B2200/0088 ,  H03B2201/0208 ,  H03B2202/017 ,  H03B2202/027

Abstract: A low noise two port voltage controlled oscillator having a coarse tuning circuit serially connected to an inductor to form a resonant circuit. A fine tuning circuit is serially connected between the resonant circuit and the input to the amplifier. A large capacitance series silicon varactor minimizes noise at the frequency of operation while optimizing the coarse tuning range.

Abstract translation: 低噪声双端口压控振荡器，其具有串联连接到电感器的粗调谐电路以形成谐振电路。 在谐振电路和放大器的输入端之间串联一个微调电路。 大电容串联硅变容二极管使工作频率下的噪声最小化，同时优化粗调范围。

公开(公告)号：US4683447A

公开(公告)日：1987-07-28

申请号：US936228

申请日：1986-12-01

Applicant: Ashok K. Talwar ,  William E. Poole, Jr. ,  Richard B. Steinkolk

Inventor： Ashok K. Talwar ,  William E. Poole, Jr. ,  Richard B. Steinkolk

IPC: H03B1/00 ,  H03B5/18 ,  H03J3/18

CPC classification number: H03B5/187 ,  H03B2200/004 ,  H03B2201/0208 ,  H03B5/1847

Abstract: Tuning varactor circuitry is disclosed for a dielectric resonator stabilized oscillator (2). A varactor diode (22) is electrically connected in a loop (24) with an RF bypass capacitor (26), and the voltage across the diode is varied. In a first embodiment, first and second dielectric substrates (36, 38) face each other along the plane of the loop (24), with the loop (24) therebetween. In another embodiment, the loop (24) is around a peripheral side wall (52) of the dielectric resonator substrate (46). In another embodiment, the loop (24) is formed on the same surface (54) of a microstrip circuit substrate (56) with a transmission line (10).

Abstract translation: 公开了用于介质谐振器稳定振荡器（2）的调谐变容二极管电路。 变容二极管（22）在环路（24）中与RF旁路电容器（26）电连接，并且二极管两端的电压变化。 在第一实施例中，第一和第二电介质基板（36,38）沿着环（24）的平面彼此面对，环路（24）在它们之间。 在另一个实施例中，环（24）围绕介质谐振器衬底（46）的周边侧壁（52）。 在另一个实施例中，环路（24）由具有传输线（10）的微带电路基板（56）的相同表面（54）上形成。

公开(公告)号：US4677691A

公开(公告)日：1987-06-30

申请号：US761635

申请日：1985-08-01

Applicant: Bentley N. Scott

Inventor： Bentley N. Scott

IPC: H03B1/00 ,  H03B5/12 ,  H03D7/14 ,  H04B1/26

CPC classification number: H03D7/1408 ,  H03B5/1218 ,  H03B5/1228 ,  H03B5/1243 ,  H03B2200/004 ,  H03B2200/0098 ,  H03B2201/0208

Abstract: A microwave oscillator provides two outputs, of opposite phase, which are directly connected to provide the local oscillator inputs to a balanced mixer. Since no balun is used, very wide-band performance can be obtained.

Abstract translation: 微波振荡器提供两个相反相的输出，它们直接连接以将本地振荡器输入提供给平衡混频器。 由于不使用平衡 - 不平衡转换器，因此可以获得非常宽带的性能。

公开(公告)号：US4630004A

公开(公告)日：1986-12-16

申请号：US721834

申请日：1985-04-11

Applicant: Edward C. Niehenke ,  Patrick A. Green

Inventor： Edward C. Niehenke ,  Patrick A. Green

IPC: H03B1/00 ,  H03B1/04 ,  H03B5/18 ,  H03B5/00

CPC classification number: H03B5/187 ,  H03B2200/0024 ,  H03B2200/004 ,  H03B2201/0208 ,  H03B2202/027 ,  H03B2202/05 ,  H03B5/1847

Abstract: A microstrip L-band bipolar dielectric resonator stabilized oscillator (DRO) devised in a moderate size (2'.times.5".times.3.6"), low-cost, reproducible circuit. Embedment of back to back varactors in the DRO provide voltage tuning for phase lock application without compromise of noise performance. Extremely low phase noise with a low l/f noise corner is achieved and the DRO is essentially constant in frequency and output power over temperature, all due to unique circuit configuration. An internal buffer amplifier and dc regulatory circuits provide a DRO that is insensitive to frequency pulling due to load changes and power supply voltage leads. New standards of performance are accomplished that permit simplified stalo configuration with lower phase noise.

Abstract translation: 微带L波段双极介质谐振器稳定振荡器（DRO）设计为中等大小（2×5''x3.6“），低成本，可重现的电路。 在DRO中背对背变压器的嵌入为相位锁定应用提供电压调节，而不会影响噪声性能。 实现了具有低l / f噪声角的极低相位噪声，并且由于独特的电路配置，DRO在温度上的频率和输出功率基本上是恒定的。 内部缓冲放大器和直流调节电路提供了由于负载变化和电源电压引线而对频率牵引不敏感的DRO。 实现了新的性能标准，允许以较低的相位噪声简化的stalo配置。