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    • 3. 发明授权
    • Method and apparatus for frequency stabilizing oscillators
    • 频率稳定振荡器的方法和装置
    • US4041416A
    • 1977-08-09
    • US734718
    • 1976-10-22
    • Bernard Glance
    • Bernard Glance
    • H03L1/02H03B3/06
    • H03L1/021
    • Frequency stabilization of an oscillator by compensating for slow frequency variations due to ambient temperature variations is achieved by diverting a fraction of the oscillator output to a waveguide line section having a coefficient of thermal expansion/.degree. C which is greater than the coefficient of relative frequency drift/.degree. C of the oscillator comprising, in sequence, a variable attenuator and a movable short. The variable attenuator is used to primarily adjust the amplitude of the diverted signal by one-half the desired amount preferably without varying the phase of the diverted signal. The movable short is primarily used for signal phase adjustment while simultaneously reflecting the attenuated signal back through the attenuator and towards the oscillator output. Temperature variations which cause impedance changes in the oscillator, and in turn frequency changes at the output thereof, similarly affect the components of the divergent waveguide line section to produce reactive load variations therein of corresponding magnitude and opposite sign to the impedance changes in the oscillator.
    • 通过补偿由于环境温度变化引起的慢频变化来振荡器的频率稳定是通过将​​一部分振荡器输出转移到具有大于相对频率漂移系数的热膨胀系数/ΔT的波导线段来实现的 该振荡器的顺序包括可变衰减器和可移动短路器。 可变衰减器用于主要将转向信号的幅度调整所需量的一半,优选地不改变转向信号的相位。 可移动短路主要用于信号相位调整,同时将衰减的信号反射回衰减器并朝向振荡器输出。 引起振荡器阻抗变化的温度变化,以及在其输出端频率变化的温度变化同样影响发散波导线路部分的组件,从而在其中产生与振荡器的阻抗变化相对应的幅度和相反符号的无功负载变化。
    • 8. 发明授权
    • Oscillator, dielectric waveguide device, and transmitter
    • 振荡器,介质波导器件和发射器
    • US06369662B1
    • 2002-04-09
    • US09430650
    • 1999-10-29
    • Kazumasa HarutaSadao Yamashita
    • Kazumasa HarutaSadao Yamashita
    • H03B912
    • H03B5/04H03B5/1847H03L1/021
    • 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.
    • 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。
    • 9. 发明授权
    • Temperature stabilizing microwave oscillator circuit
    • 温度稳定微波振荡电路
    • US4599581A
    • 1986-07-08
    • US614186
    • 1984-05-25
    • Christos Tsironis
    • Christos Tsironis
    • H03B5/04H03L1/02
    • H03L1/021
    • 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.
    • 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。
    • 10. 发明授权
    • Thermally stabilized IMPATT oscillator
    • 热稳定的IMPATT振荡器
    • US4445096A
    • 1984-04-24
    • US468095
    • 1983-02-22
    • Kang W. LeeAllen F. Podell
    • Kang W. LeeAllen F. Podell
    • H03B9/14H03L1/02
    • H03L1/021H03B9/145H03B2009/126
    • 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.
    • 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。