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1. 发明申请

US20070120615A1 Tunable frequency, low phase noise and low thermal drift oscillator 有权
标题翻译：可调谐频率，低相位噪声和低热漂移振荡器
公开(公告)号：US20070120615A1
公开(公告)日：2007-05-31
申请号：US11657363
申请日：2007-01-24
申请人： Ulrich Rohde , Ajay Poddar
发明人： Ulrich Rohde , Ajay Poddar
IPC分类号： H03L1/00
CPC分类号： H03B5/1805 , H03B5/04 , H03B5/1203 , H03B5/1218 , H03B5/1231 , H03B5/1243 , H03B2200/0028 , H03B2200/004 , H03B2200/007 , H03B2200/0076
摘要： An oscillator comprising a three-terminal device and circuitry coupled across a first terminal and a second terminal of the device. The circuitry is preferably operable to bias the device and feedback a select amount of noise generated by the device into the device so as to reduce a proportional amount of phase noise present at a third terminal of the device.
摘要翻译：一种振荡器，包括三端装置和耦合在装置的第一端和第二端之间的电路。电路优选地可操作以偏置装置并且将装置产生的选择量的噪声反馈到装置中，以便减少存在于装置的第三端处的相位噪声的比例量。

2. 发明授权

US4999589A Low phase noise voltage controlled oscillator 失效
标题翻译：低相位噪声压控振荡器
公开(公告)号：US4999589A
公开(公告)日：1991-03-12
申请号：US473772
申请日：1990-02-02
申请人： Marcus DaSilva
发明人： Marcus DaSilva
IPC分类号： H03B1/00 , H03B1/04 , H03B5/18
CPC分类号： H03B5/1805 , H03B2201/0208 , H03B2202/017 , H03B2202/027
摘要： A varactor diode tuned voltage controlled oscillator which simultaneously optimizes several techniques to minimize AM to FM conversion in the LC resonant circuit to provide an RF signal having minimum phase noise is described. A high gain current limiting RF amplifier is coupled to a high Q, high capacitance, low impedance LC resonant circuit by an impedance transformation network to provide a high tank circulating power having minimum RF voltage fluctuations. The RF voltage across the varactor tuning diodes is further reduced by connecting two varactor diodes in series, back-to-back, or by connecting a fixed capacitance in series with the parallel connected varactor diodes.
摘要翻译：描述了变容二极管调谐压控振荡器，其同时优化了几种技术以最小化LC谐振电路中的AM至FM转换以提供具有最小相位噪声的RF信号。高增益限流RF放大器通过阻抗变换网络耦合到高Q，高电容，低阻抗LC谐振电路，以提供具有最小RF电压波动的高容量循环功率。通过串联连接两个变容二极管，背靠背连接，或者通过连接与并联连接的变容二极管串联的固定电容来进一步减少变容二极管调谐二极管两端的射频电压。

3. 发明授权

US4939481A Low phase noise voltage controlled oscillator 失效
标题翻译：低相位噪声压控振荡器
公开(公告)号：US4939481A
公开(公告)日：1990-07-03
申请号：US212849
申请日：1988-06-29
申请人： Marcus DaSilva
发明人： Marcus DaSilva
IPC分类号： H03B1/00 , H03B1/04 , H03B5/18
CPC分类号： H03B5/1805 , H03B2201/0208 , H03B2202/017 , H03B2202/027
摘要： A varactor diode tuned voltage controlled oscillator which simultaneously optimizes several techniques to minimize AM to FM conversion in the LC resonant circuit to provide an RF signal having minimum phase noise is described. A high gain current limiting RF amplifier is coupled to a high Q, high capacitance, low impedance LC resonant circuit by an impedance transformation network to provide a high tank circulating power having minimum RF voltage fluctuations. The RF voltage across the varactor tuning diodes is further reduced by connecting two varactor diodes in series, back-to-back, or by connecting a fixed capacitance in series with the parallel connected varactor diodes.
摘要翻译：描述了变容二极管调谐压控振荡器，其同时优化了几种技术以最小化LC谐振电路中的AM至FM转换以提供具有最小相位噪声的RF信号。高增益限流RF放大器通过阻抗变换网络耦合到高Q，高电容，低阻抗LC谐振电路，以提供具有最小RF电压波动的高容量循环功率。通过串联连接两个变容二极管，背靠背连接，或者通过连接与并联连接的变容二极管串联的固定电容来进一步减少变容二极管调谐二极管两端的射频电压。

4. 发明授权

US4228539A High frequency transmitter 失效
标题翻译：高频变送器
公开(公告)号：US4228539A
公开(公告)日：1980-10-14
申请号：US973797
申请日：1978-12-28
申请人： Reijo Hamalainen
发明人： Reijo Hamalainen
IPC分类号： H03B1/00 , H03B5/18 , H04B1/04 , H04B1/03 , H03H13/00
CPC分类号： H04B1/04 , H03B5/1805 , H03B2201/011 , H03B2201/015
摘要： The components of a transistor oscillator are mounted on an end cap rotatably mounted on the outer tube of a cavity resonator which stabilizes the oscillator. The intensity with which a high frequency is applied to the cavity resonator is adjustable by rotation of the end cap.
摘要翻译：晶体管振荡器的组件安装在可旋转地安装在腔谐振器的外管上的端盖上，该谐振腔稳定振荡器。高频施加到空腔谐振器的强度可通过端盖的旋转来调节。

5. 发明授权

US3855550A Transistor oscillator with diode in feedback circuit providing amplitude stabilization 失效
标题翻译：带二极管的晶体管振荡器提供放大倍数稳定的反馈电路
公开(公告)号：US3855550A
公开(公告)日：1974-12-17
申请号：US39141773
申请日：1973-08-24
申请人： RCA CORP
发明人： CARLSON D
IPC分类号： H03B5/04 , H03B1/00 , H03B5/18 , H03B3/02 , H03B5/12
CPC分类号： H03B5/1805 , H03B2201/031 , H03B2201/038
摘要： A voltage-dependent capacitor tuned oscillator employs a diode as a coupling element between an amplifying device and a resonant circuit to provide a feedback signal to the amplifying device required to sustain oscillations. The diode further provides charging current for a capacitor in the resonant circuit when a first polarity portion of the oscillations increase above a predetermined level. The charge on the capacitor decreases the feedback level, thus stabilizing the level of oscillations in the resonant circuit for each frequency to which the oscillator is tuned.
摘要翻译：电压相关的电容调谐振荡器使用二极管作为放大器件和谐振电路之间的耦合元件，以向保持振荡所需的放大器件提供反馈信号。当振荡的第一极性部分增加到高于预定电平时，二极管进一步向谐振电路中的电容器提供充电电流。电容器上的电荷会降低反馈电平，从而稳定振荡器调谐的每个频率的谐振电路中的振荡电平。

6. 发明授权

US3747032A Arrangement for providing improved linearization of the voltage-frequency characteristic of a resonant circuit having a voltage-variable capacity diode 失效
标题翻译：提供具有电压可变容量二极管的谐振电路的电压频率的改进线性化的布置
公开(公告)号：US3747032A
公开(公告)日：1973-07-17
申请号：US3747032D
申请日：1971-10-29
申请人： GEN ELECTRIC
发明人： HALL J , PEPPIATT H
IPC分类号： H01P7/04 , H03B1/00 , H03B5/18 , H03C7/02 , H03C3/20
CPC分类号： H03B5/1805 , H01P7/04 , H03B2201/014 , H03B2201/0208 , H03C7/027
摘要： A voltage-variable capacity diode is coupled through a one-third wavelength transmission line to a resonant cavity. The capacity of the diode is varied by a modulating voltage so as to change the resonant frequency of the cavity, and hence the resonant frequency of an oscillator. The transmission line causes the resonant frequency of the cavity to vary more linearly over a relatively wide band as a function of the modulating voltage.
摘要翻译：电压可变容量二极管通过三分之一波长传输线耦合到谐振腔。二极管的容量由调制电压变化，从而改变空腔的谐振频率，从而改变振荡器的谐振频率。传输线使得腔的谐振频率随着调制电压的变化在相对较宽的频带上更线性地变化。

7. 发明授权

US3713041A Injection type frequency locked oscillator apparatus 失效
标题翻译：注射式频率锁定振荡器装置
公开(公告)号：US3713041A
公开(公告)日：1973-01-23
申请号：US3713041D
申请日：1971-12-14
申请人： NIPPON ELECTRIC CO
发明人： SAKAMOTO K , TAMURA R
IPC分类号： H03L7/24 , H03B5/18 , H03B9/12 , H03B3/06 , H03B7/14
CPC分类号： H03B5/1805
摘要： An injection-type frequency-locked oscillator provided with novel means for monitoring the operation of the oscillator. An injection input wave is applied through a directional coupler to an auxiliary terminal of the oscillator having a separate output terminal connected to a load. The coupler separates the injection input wave from the oscillator output wave. The output impedance of the oscillator is matched to the load impedance; however, the input impedance of the oscillator at the auxiliary terminal is mismatched to the output impedance of the coupler with respect to the injection input wave, thereby producing in the coupler a reflected injection input wave which is 180* out of phase with the oscillator output wave when the oscillator is frequencylocked at the center frequency of the injection input wave. The signal level at a monitoring terminal of the coupler provides a monitoring signal indicative of the degree of frequency-locking of the oscillator.
摘要翻译：一种注入式锁频振荡器，其具有用于监视振荡器的操作的新型装置。注入输入波通过定向耦合器施加到具有连接到负载的单独输出端子的振荡器的辅助端子。耦合器将注入输入波与振荡器输出波分离。振荡器的输出阻抗与负载阻抗匹配; 然而，辅助端子处的振荡器的输入阻抗与耦合器相对于注入输入波的输出阻抗不匹配，从而在耦合器中产生与振荡器输出为180°异相的反射注入输入波当振荡器被频率锁定在注入输入波的中心频率时的波形。耦合器的监控端处的信号电平提供指示振荡器频率锁定程度的监视信号。

8. 发明授权

US3349341A Broad band solid state oscillator 失效
标题翻译：宽带固态振荡器
公开(公告)号：US3349341A
公开(公告)日：1967-10-24
申请号：US58002466
申请日：1966-09-16
申请人： TRAK MICROWAVE CORP
发明人： SCHONIGER KENNETH R
IPC分类号： H03B1/00 , H03B5/18
CPC分类号： H03B5/1805 , H03B2201/014

9. 发明授权

US3290614A High frequency oscillator having distributed parameter resonant circuit 失效
标题翻译：具有分布参数谐振电路的高频振荡器
公开(公告)号：US3290614A
公开(公告)日：1966-12-06
申请号：US35342464
申请日：1964-03-20
申请人： SANDERS ASSOCIATES INC
发明人： RACY JOSEPH E
IPC分类号： H03B5/18
CPC分类号： H03B5/1805

10. 发明授权

US3259853A Microwave oscillator with variable bimetallic frequency stabilizer 失效
标题翻译：具有可变双金属频率稳定器的微波振荡器
公开(公告)号：US3259853A
公开(公告)日：1966-07-05
申请号：US28005763
申请日：1963-05-13
申请人： TRAK MICROWAVE CORP
发明人： FAULKNER GEORGE D
IPC分类号： H01P7/04 , H03B1/00 , H03B5/18
CPC分类号： H03B5/1805 , H01P7/04 , H03B2201/014

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