公开(公告)号：US20170155394A1

公开(公告)日：2017-06-01

申请号：US15369286

申请日：2016-12-05

Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION

Inventor： Benton H. Calhoun ,  Aatmesh Shrivastava

IPC: H03L1/02 ,  G06F1/32

CPC classification number: H03L1/026 ,  G06F1/04 ,  G06F1/324 ,  G06F1/3287 ,  G06F1/3296 ,  H03B5/32 ,  H03K3/011 ,  H03K3/0315 ,  H03L1/02 ,  H03L1/021 ,  H03L1/022

Abstract: An ultra-low power clock source includes a compensated oscillator and an uncompensated oscillator coupled by a comparator circuit. In an example, the compensated oscillator is more stable than the uncompensated oscillator with respect to changes in one or more of temperature, voltage, age, or other environmental parameters. The uncompensated oscillator includes a configuration input configured to adjust an operating characteristic of the uncompensated oscillator. In an example, the uncompensated oscillator is adjusted using information from the comparator circuit about a comparison of output signals from the compensated oscillator and the uncompensated oscillator.

公开(公告)号：US06369662B1

公开(公告)日：2002-04-09

申请号：US09430650

申请日：1999-10-29

Applicant: Kazumasa Haruta ,  Sadao Yamashita

Inventor： Kazumasa Haruta ,  Sadao Yamashita

IPC: H03B912

CPC classification number: H03B5/04 ,  H03B5/1847 ,  H03L1/021

Abstract: An oscillator, a dielectric waveguide device and a transmitter incorporating the same, wherein a special temperature-compensating circuit provides a temperature-compensated device with reduced size and cost, and greater productivity. In the oscillator, a dielectric plate having a strip line of a specified length is arranged between conductive plates which enclose a Gunn diode. The oscillation output signal of the Gunn diode is extracted via the strip line. In addition, the sign of the dielectric-constant temperature coefficient of the dielectric plate is set such that changes in the oscillation frequency caused by changes in temperature of the Gunn diode are suppressed.

Abstract translation: 振荡器，介质波导器件和包含该振荡器的发射器，其中特殊的温度补偿电路提供具有减小尺寸和成本以及更高生产率的温度补偿器件。 在振荡器中，具有特定长度的带状线的电介质板被布置在包围耿氏二极管的导电板之间。 通过带状线提取耿氏二极管的振荡输出信号。 此外，电介质板的介电常数温度系数的符号被设定为使得由耿氏二极管的温度变化引起的振荡频率的变化被抑制。

公开(公告)号：US4599581A

公开(公告)日：1986-07-08

申请号：US614186

申请日：1984-05-25

Applicant: Christos Tsironis

Inventor： Christos Tsironis

IPC: H03B5/04 ,  H03L1/02

CPC classification number: H03L1/021

Abstract: A temperature stabilizing circuit for a microwave oscillator employing a field effect transistor on an AsGa substrate, in which a temperature-stabilized frequency is obtained by varying the gate-channel capacitance of an FET included in the oscillator resonance circuit. The capacitance is controlled by a voltage derived from a voltage divider comprising a series arrangement of several Schottky diodes or FET's. The circuit is suited to assembly as an integrated monolithic circuit comprising FETs on a AsGa substrate, for micro wave frequency applications such as for example, processing 12 GHz satellite television signals.

Abstract translation: 一种用于在AsGa衬底上采用场效应晶体管的微波振荡器的温度稳定电路，其中通过改变包括在振荡器谐振电路中的FET的栅极沟道电容来获得温度稳定的频率。 电容由来自包括几个肖特基二极管或FET的串联布置的分压器导出的电压控制。 该电路适合于组装为包括AsGa衬底上的FET的集成单片电路，用于微波频率应用，例如处理12GHz卫星电视信号。

公开(公告)号：US4445096A

公开(公告)日：1984-04-24

申请号：US468095

申请日：1983-02-22

Applicant: Kang W. Lee ,  Allen F. Podell

Inventor： Kang W. Lee ,  Allen F. Podell

IPC: H03B9/14 ,  H03L1/02

CPC classification number: H03L1/021 ,  H03B9/145 ,  H03B2009/126

Abstract: An IMPATT oscillator is thermally stabilized for pulsed operation by utilizing the dissipative heat during subperiods of pulsed operation and a variable self-heating due to a bias voltage applied during non-oscillating subperiods. The oscillator comprises an IMPATT diode mounted on a platform which is attached to a housing defining a resonating cavity. The platform has a thermally insulating base with a layer of thermally and electrically conducting material applied thereon. The thickness of the layer of thermally and electrically conducting material must be sufficient to permit microwave resonances to occur within the cavity. The thermal resistance of the layer is selected to permit the junction temperature to remain constant even for the highest ambient temperature condition. Constant junction temperature over a wide range of ambient temperature produces constant power and frequency characteristics.

Abstract translation: IMPATT振荡器通过利用在脉冲操作的次周期期间的耗散热和由于在非振荡次周期期间施加的偏置电压而导致的可变自发热而被稳定地用于脉冲操作。 振荡器包括安装在平台上的IMPATT二极管，该平台连接到限定谐振腔的壳体。 平台具有绝热基底，其上施加有导电材料层。 导热材料层的厚度必须足以使腔内发生微波共振。 选择该层的热阻以使得即使在最高环境温度条件下，结温也保持恒定。 在宽范围的环境温度下的恒定结温度产生恒定的功率和频率特性。

公开(公告)号：US3631363A

公开(公告)日：1971-12-28

申请号：US3631363D

申请日：1969-11-14

Applicant: GEN ELECTRIC

Inventor： MILLER HAROLD D

IPC: H01P7/04 ,  H03L1/02 ,  H03B5/18

CPC classification number: H01P7/04 ,  H03L1/021

Abstract: A high-frequency coaxial cavity oscillator is provided having an adjustable tuning member centrally carried by the inner conductor of the cavity to minimize detuning of the cavity by thermal expansion of the outer wall.

公开(公告)号：US3623146A

公开(公告)日：1971-11-23

申请号：US3623146D

申请日：1969-05-23

Applicant: HITACHI LTD

Inventor： KANEKO YOICHI ,  SEKINE KENZI

IPC: H03L1/02 ,  H03B3/04 ,  H03B7/14

CPC classification number: H03L1/021

Abstract: A temperature-compensating device for a solid-state oscillator, wherein a part of the conductive walls constituting a cavity resonator is formed by a movable plate, the movable plate is fixed to one end of a dielectric rod with a high coefficient of linear expansion, and the other end of said rod is fixed to an extension of said cavity resonator.

公开(公告)号：US09276584B2

公开(公告)日：2016-03-01

申请号：US14186661

申请日：2014-02-21

Applicant: VIXS SYSTEMS INC.

Inventor： Chung Fai Au Yeung ,  Michael Cave

IPC: H03L1/00 ,  H03L1/02

CPC classification number: H03L1/00 ,  H03L1/02 ,  H03L1/021 ,  H03L1/026

Abstract: An oscillator includes a compensated current source that adjusts an output current based on process, supply voltage, and temperature (“PVT”) variations of an integrated circuit device. The oscillator generates an output signal having a frequency based, in part, on the output current of the compensated current source. Accordingly, the output signal has a relatively low sensitivity to PVT variations.

Abstract translation: 振荡器包括补偿电流源，其基于集成电路器件的过程，电源电压和温度（“PVT”）变化调整输出电流。 振荡器产生一个输出信号，该输出信号的频率部分取决于补偿电流源的输出电流。 因此，输出信号对PVT变化的灵敏度相对较低。

公开(公告)号：US5329255A

公开(公告)日：1994-07-12

申请号：US940580

申请日：1992-09-04

Applicant: James R. Hayes ,  Steve R. Kasten ,  George J. Purden

Inventor： James R. Hayes ,  Steve R. Kasten ,  George J. Purden

IPC: H01P7/06 ,  H03B9/14 ,  H03L1/02 ,  H03B5/04 ,  H03B5/18 ,  H03B7/12 ,  H03B7/14

CPC classification number: H03L1/021 ,  H01P7/06 ,  H03B9/145 ,  H03B2009/126

Abstract: A thermally compensating microwave cavity is provided. An active device that generates microwaves is disposed within this microwave cavity such that microwaves are emitted within the cavity. A first portion of these microwaves travels in one direction from the active device and forms a broad bandwidth signal. A section portion of the microwaves travels toward a reflecting member and is reflected. Once reflected, this second portion combines with and compensates the first portion. A temperature dependent bellows is utilized to displace the active device and the reflecting member relative to one another. Accordingly, as the signal emitted by the active device changes with temperature, the reflecting member is displaced by the bellows to properly reflect the second portion of the microwaves such that it combines with and properly compensates the signal.

Abstract translation: 提供了一种热补偿微波腔。 产生微波的有源器件设置在该微波腔内，使得微波在空腔内发射。 这些微波的第一部分从有源器件沿一个方向传播并形成宽带宽信号。 微波的一部分朝向反射构件行进并被反射。 一旦被反射，该第二部分结合并补偿第一部分。 使用温度依赖的波纹管来相对于彼此移动有源器件和反射部件。 因此，随着由有源器件发射的信号随着温度而变化，反射部件被波纹管移位以适当地反射微波的第二部分，从而与微波的组合并适当地补偿信号。

公开(公告)号：US3902138A

公开(公告)日：1975-08-26

申请号：US49089674

申请日：1974-07-22

Applicant: GEN ELECTRIC

Inventor： HOPPER JR CLAUDE

IPC: H03B5/18 ,  H03L1/02 ,  H03B5/04

CPC classification number: H03L1/021 ,  H03B5/1835

Abstract: A microwave, one-half wave, coaxial cavity oscillator comprising a tubular cavity body having a section thereof constructed of a material having a high coefficient of expansion, a tube, an anode line having a section thereof constructed of a material having a low coefficient of expansion, and tuning member connected to an end plate of said body remote from said tube, which member forms an automatically variable capacitor with an end face of the anode line thereby to provide a variable capacitance responsive to operating temperature variations to minimize frequency deviations when the oscillator is operated under widely varying ambient temperatures. Another feature of the oscillator comprises a partition of high thermal conductivity connected between the anode line and cavity body to rapidly dissipate the heat generated by the tube, thereby to minimize the temperature gradient within the cavity body.

公开(公告)号：US3665341A

公开(公告)日：1972-05-23

申请号：US3665341D

申请日：1971-01-20

Applicant: HITACHI LTD

Inventor： SEKINE KENJI ,  KANEKO YOICHI

IPC: H03B9/14 ,  H03L1/02 ,  H03B7/14

CPC classification number: H03L1/021 ,  H03B9/146

Abstract: A temperature compensated cavity for a solid state oscillator in which part of the conductive plates forming the cavity resonator is constituted by a movable plate, said movable plate being secured to one end of a dielectric rod having a large coefficient of linear expansion, the end of which is supported extensibly, and the other end of which is secured to the extended part of said cavity resonator.