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118 条记录 (耗时 0.015 秒)

    POSITIONING DEVICE FOR RADIO FREQUENCY MATCHER
    2.
    发明申请
    POSITIONING DEVICE FOR RADIO FREQUENCY MATCHER 审中-公开

    公开(公告)号：US20180006627A1

    公开(公告)日：2018-01-04

    申请号：US15256685

    申请日：2016-09-05

    申请人： Jui-Pao PAN

    发明人： Jui-Pao PAN

    IPC分类号： H03H7/40 ,  H03J7/16

    CPC分类号： H03H7/40 ,  H03J1/0008 ,  H03J1/06 ,  H03J7/16

    摘要： A positioning device for a radio frequency matcher comprises mainly a micro controller, and at least two detecting elements connected to the micro controller. The detecting elements are disposed on electric motors to detect the rotation angles of the electric motors. When the electric motors adjust the positions of the moving pieces of the tuning elements based on the volume of error signals to change the electrical reactance values so that they may approximately meet the requirement of the radio frequency load and that the radio frequency load may achieve a highest possible power, the micro controller may interpret the signals of the rotation angle detecting elements and output the interpreted values for a user to determine whether the moving pieces of the tuning elements are at right positions to approximately meet the requirement of the radio frequency load and maximize the power of the radio frequency load of the radio frequency matcher.

    CAVITY FILTER
    3.
    发明申请
    CAVITY FILTER 有权
    CAVITY过滤器

    公开(公告)号：US20150333386A1

    公开(公告)日：2015-11-19

    申请号：US14278887

    申请日：2014-05-15

    申请人： Alcatel-Lucent USA Inc.

    发明人： Noriaki KANEDA ,  Tsu-Wei LIN

    IPC分类号： H01P1/208 ,  H03J7/16

    CPC分类号： H01P1/208 ,  H01P1/202 ,  H01P1/2053 ,  H01P1/2084 ,  H01P7/04 ,  H03J7/16

    摘要： In one embodiment, the cavity filter includes a housing defining a cavity, and at least one post projecting from a first interior surface of the housing towards a second interior surface of the housing. The first interior surface faces the second interior surface. The cavity filter further includes a thermo electric cooler disposed on the housing. The thermo electric cooler is configured to one of cool and heat at least a portion of the housing.

    摘要翻译： 在一个实施例中，空腔过滤器包括限定空腔的壳体和从壳体的第一内表面朝向壳体的第二内表面突出的至少一个柱。 第一内表面面向第二内表面。 空腔滤波器还包括设置在壳体上的热电冷却器。 热电冷却器被配置为冷却和加热壳体的至少一部分之一。

    Method and system for tuning resonance modules
    4.
    发明授权
    Method and system for tuning resonance modules 失效
    谐振模块调谐方法和系统

    公开(公告)号：US6041083A

    公开(公告)日：2000-03-21

    申请号：US890215

    申请日：1997-07-09

    申请人： Lennart Larsson ,  Rolf Folkesson

    发明人： Lennart Larsson ,  Rolf Folkesson

    IPC分类号： H03J1/00 ,  H03J7/16 ,  H03K7/06

    CPC分类号： H03J7/16 ,  H03J1/0008

    摘要： A method and a system for tuning a resonance module in a radio base station is disclosed. The resonance module has tuning means, a transmitter connection, and an antenna connection. High-frequency input and output signals on the transmitter and antenna connection, respectively, are sensed and processed to tune the resonance module to a frequency of the input signal on the transmitter connection. The processing of the sensed input and output signals includes processing in a low-frequency range. Prior art methods are improved by the invention through the use of a quadrature modulator to increase adjustment speed and overall applicability of the resonance module to be tuned.

    摘要翻译： 公开了一种用于调谐无线电基站中的谐振模块的方法和系统。 谐振模块具有调谐装置，发射器连接和天线连接。 分别在发射器和天线连接上的高频输入和输出信号被感测和处理，以将谐振模块调谐到发射器连接上的输入信号的频率。 感测的输入和输出信号的处理包括在低频范围内的处理。 本发明通过使用正交调制器来提高调谐速度和谐波模块的整体适用性来改进现有技术的方法。

    Oscillator having low phase noise
    5.
    发明授权
    Oscillator having low phase noise 失效
    振荡器具有低相位噪声

    公开(公告)号：US4831339A

    公开(公告)日：1989-05-16

    申请号：US88089

    申请日：1987-08-21

    申请人： Robert Nemeth

    发明人： Robert Nemeth

    IPC分类号： H03J7/16 ,  H03L7/07 ,  H03L7/08

    CPC分类号： H03J7/16 ,  H03L7/07 ,  H03L7/08

    摘要： Phase noise in a carrier signal is reduced by use of a phase locked loop which is responsive to the carrier signal and another signal of comparable noise level but having non-correlated phase noise.

    摘要翻译： 载波信号中的相位噪声通过使用响应于载波信号的相位噪声电平但具有不相关相位噪声的另一信号的锁相环来减小。

    Tuning device for radio receiver
    6.
    发明授权
    Tuning device for radio receiver 失效
    无线电接收机调谐装置

    公开(公告)号：US4389732A

    公开(公告)日：1983-06-21

    申请号：US193111

    申请日：1980-10-02

    申请人： Yasumasa Sasahara ,  Hiroshi Kuroda

    发明人： Yasumasa Sasahara ,  Hiroshi Kuroda

    IPC分类号： H03J1/18 ,  H03J7/06 ,  H03J7/16 ,  H04B1/16 ,  H03J7/30

    CPC分类号： H03J1/18 ,  H03J7/06 ,  H03J7/16

    摘要： A tuning device for a radio receiver comprises a manual tuning system to manually drive a variable capacitor and an automatic tuning system to drive the same by a motor, wherein the mechanism for transmitting a motive force of a manipulated tuning knob to the variable capacitor in the manual tuning mode is arranged in a mechanically independent relation with a motive force transmitting mechanism provided by a motor in the automatic tuning mode, and the selection of either one of the two transmitting mechanisms is effected by a clutch mechanism whose connection of either one of the two transmitting mechanisms to the variable capacitor is changed over by a touch switch electrically connected to the tuning knob of the receiver.

    摘要翻译： 用于无线电接收机的调谐装置包括手动驱动可变电容器的手动调谐系统和通过电动机驱动其的自动调谐系统，其中用于将操纵的调谐旋钮的动力传递到可变电容器的可变电容器的机构 手动调谐模式以与自动调谐模式中的电动机提供的动力传递机构以机械独立的关系布置，并且两个传动机构中的任一个的选择由离合器机构实现，离合器机构的连接 通过电连接到接收器的调谐旋钮的触摸开关切换到可变电容器的两个发送机构。

    Band-pass filtering device with servo-controlled tuning
    7.
    发明授权
    Band-pass filtering device with servo-controlled tuning 失效
    带伺服控制调谐的带通滤波器

    公开(公告)号：US4157515A

    公开(公告)日：1979-06-05

    申请号：US871799

    申请日：1978-01-23

    申请人： Pierre de Bayser ,  Pierre Mondoloni

    发明人： Pierre de Bayser ,  Pierre Mondoloni

    IPC分类号： H03J7/18 ,  H01P1/208 ,  H03J7/02 ,  H03J7/16 ,  H03J7/30 ,  H03H7/10 ,  H01P1/20

    CPC分类号： H03J7/30 ,  H03J7/16

    摘要： Filtering device comprising a microwave band-pass filter with resonant cavities tunable by a single mechanical control shaft, an additional resonant cavity which is also controlled by this single control and which is tuned to a frequency shifted by a fixed value in relation to that of the other cavities, and a servocontrol mechanism for controlling the tuning of this additional cavity in dependence upon a frequency, for instance that of the local oscillator of a frequency converter, the simple storage of this frequency ensuring the tuning of the band-pass filter.

    摘要翻译： 滤波装置包括具有可由单个机械控制轴调节的谐振腔的微波带通滤波器，附加谐振腔，其也由该单个控制器控制，并且被调谐到相对于 其他空腔和用于根据频率（例如频率转换器的本地振荡器的频率）控制该附加空腔的调谐的伺服控制机构，该频率的简单存储确保了带通滤波器的调谐。

    Tuning system
    8.
    发明授权
    Tuning system 失效
    调谐系统

    公开(公告)号：US3806817A

    公开(公告)日：1974-04-23

    申请号：US20482771

    申请日：1971-12-06

    申请人： MATSUSHITA ELECTRIC IND CO LTD

    发明人： UCHIDA K

    IPC分类号： H03J7/02 ,  H03J7/08 ,  H03J7/16 ,  H04B1/16

    CPC分类号： H03J7/08 ,  H03J7/023 ,  H03J7/16

    摘要： An automatic AFT suppressor circuit comprising a source of channel change-over signal and a switching element, is incorporated in an r-f receiver which has a tuner circuit with a varactor diode and an AFT circuit to automatically suppress or stop the automatical fine tuning action of the AFT circuit for a certain duration of time after the power switch is put on which connects or disconnects a power source for the r-f receiver used as the source of channel change-over signal. Also, when such an appratus as a motor is used as a channel change-over mechanism for the r-f receiver, a voltage to be applied to the apparatus is used as the source of channel change-over signal, so that the automatic fine tuning action is suppressed while the channels are being changed over.

    摘要翻译： 包括频道转换信号源和开关元件的自动AFT抑制电路被并入rf接收机中，该rf接收机具有带变容二极管的调谐器电路和AFT电路，以自动抑制或停止 AFT电路在电源开关放置一段持续时间后，连接或断开用作频道切换信号源的rf接收机的电源。 此外，当将这样的电动机作为用于rf接收机的频道转换机构时，将要施加到装置的电压用作频道切换信号的源，从而使自动微调动作 在频道正在改变的同时被抑制。