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31. 发明授权

US06489842B2 Multiple traveling wave tube amplifier electronic power conditioner with centralized low voltage and distributed high voltage 有权
标题翻译：多行波管放大器电子功率调节器，集中低压和分布式高压
公开(公告)号：US06489842B2
公开(公告)日：2002-12-03
申请号：US09755392
申请日：2001-01-05
申请人： John E. Eng
发明人： John E. Eng
IPC分类号： H03F358
CPC分类号： H03F3/58
摘要： A microwave tube system for use with a spacecraft telecommunication system is provided. The system includes a traveling wave tube subsystem, a high voltage converter subsystem, and a low voltage converter subsystem. The traveling wave tube subsystem includes a plurality of traveling wave tubes. The high voltage converter subsystem powers the traveling wave tube subsystem. The high voltage converter subsystem includes a plurality of high voltage converter members that are paired with the traveling wave tubes on a one-to-one basis. The low voltage converter subsystem is a central power conditioner subsystem including a plurality of low voltage power conditioners that are connected in parallel to one another. A common power output of the central power conditioner subsystem is received by the high voltage converter members which in turn power the traveling wave tubes that are paired with the high voltage converters. Such configured central power conditioner subsystem requires less circuitry and fewer low voltage power conditioners thereby resulting in lower spacecraft weight and volume.
摘要翻译：提供了一种与航天器电信系统一起使用的微波管系统。该系统包括行波管子系统，高压转换器子系统和低压转换器子系统。行波管子系统包括多个行波管。高压转换器子系统为行波管子系统供电。高电压转换器子系统包括与行波管成对配置的多个高电压转换器部件。低压转换器子系统是包括彼此并联连接的多个低压功率调节器的中央功率调节器子系统。中央功率调节器子系统的公共功率输出由高电压转换器构件接收，高压转换器构件又对与高压转换器配对的行波管供电。这种配置的中央功率调节器子系统需要更少的电路和更少的低压功率调节器，从而导致较低的航天器重量和体积。

32. 发明授权

US06285254B1 System and method for linearizing vacuum electronic amplification 有权
标题翻译：线性化真空电子放大的系统和方法
公开(公告)号：US06285254B1
公开(公告)日：2001-09-04
申请号：US09481854
申请日：2000-01-14
申请人： Tong Chen , Yehuda G. Goren
发明人： Tong Chen , Yehuda G. Goren
IPC分类号： H03F126
CPC分类号： H03F3/58
摘要： An amplifier system including a vacuum tube amplifier having an input signal terminal, an output signal terminal, and an electron source, and a control circuit having an input terminal coupled to one of the input signal terminal and the output signal terminal, and for controlling a kinetic energy of electrons emitted by the electron source based on one of an input signal to the vacuum tube amplifier and an output signal from the vacuum tube amplifier. According to another embodiment, the control circuit may be for controlling an amount of electrons emitted by the electron source based on one of the input signal to the vacuum tube amplifier and the output signal from the vacuum tube amplifier. According to another embodiment, the control circuit may be for both controlling the kinetic energy of electrons emitted by the electron source based on one of the input signal and the output signal, and controlling the amount of electrons emitted by the electron source based on one of the input signal and the output signal.
摘要翻译：一种放大器系统，包括具有输入信号端子，输出信号端子和电子源的真空管放大器，以及具有耦合到输入信号端子和输出信号端子之一的输入端子的控制电路，基于对真空管放大器的输入信号和来自真空管放大器的输出信号之一由电子源发射的电子的动能。根据另一个实施例，控制电路可以用于基于对真空管放大器的输入信号和来自真空管放大器的输出信号之一来控制由电子源发射的电子的量。根据另一实施例，控制电路可以用于基于输入信号和输出信号中的一个来控制由电子源发射的电子的动能，并且基于以下之一来控制由电子源发射的电子的量输入信号和输出信号。

33. 发明授权

US5500621A Travelling-wave tube protection arrangement 失效
标题翻译：行波管保护装置
公开(公告)号：US5500621A
公开(公告)日：1996-03-19
申请号：US416111
申请日：1995-04-03
申请人： Allen Katz , Herbert J. Wolkstein , James J. Meighan, III
发明人： Allen Katz , Herbert J. Wolkstein , James J. Meighan, III
IPC分类号： H01J25/38 , H03F1/54 , H03F3/58
CPC分类号： H01J25/38 , H01J23/34 , H03F1/54 , H03F3/58
摘要： A travelling-wave tube (TWT) for a satellite communication system includes a cathode current regulator which compares a sensed I.sub.K signal with a cathode current reference to form an cathode current error signal, and controls the cathode current in response to the cathode current error signal. Helix arc protection is provided by a helix current shut-down, which compares the helix current with a particular reference, and shuts the TWT supply down when helix current flows. Desirable high efficiency TWTs have a small input drive range between maximum TWT output and a defocussed condition, in which beam current flows in the helix. Sudden changes in path attenuation may result in an RF overdrive condition, and cause helix current flow, and undesirably shut down the TWT. A helix current limiter senses the helix current, and compares it with a reference which represents less helix current than that which causes shutdown, to produce a helix current error signal. The helix current error signal adjusts the cathode current reference, to thereby reduce the cathode current in a feedback manner, to thereby tend to maintain the helix current constant at a value below the shut-down helix current.
摘要翻译：用于卫星通信系统的行波管（TWT）包括阴极电流调节器，其将感测到的IK信号与阴极电流参考值进行比较以形成阴极电流误差信号，并响应于阴极电流误差信号来控制阴极电流。螺旋电弧保护由螺旋电流关闭提供，其将螺旋电流与特定参考值进行比较，并在螺旋电流流动时关闭TWT电源。期望的高效率TWT在最大TWT输出和散焦条件之间具有小的输入驱动范围，其中束电流在螺旋中流动。路径衰减的突然变化可能导致RF过驱动条件，并导致螺旋电流流动，并且不期望地关闭TWT。螺旋电流限制器检测螺旋电流，并将其与参考相比较，该参考表示比引起关闭的螺旋电流更少的螺旋电流，以产生螺旋电流误差信号。螺旋电流误差信号调节阴极电流参考，从而以反馈方式减小阴极电流，从而倾向于将螺旋电流恒定在低于停机螺旋电流的值。

34. 发明授权

US5402085A Process and device for compensation of phase instabilities of the wave amplified by a microwave tube 失效
标题翻译：由微波管放大的波的相位不稳定性的补偿过程和装置
公开(公告)号：US5402085A
公开(公告)日：1995-03-28
申请号：US48199
申请日：1993-04-20
申请人： Gilles Cote
发明人： Gilles Cote
IPC分类号： H03F3/60 , H03F1/32 , H03F3/24 , H03F3/58 , H03L7/00 , H03F1/30
CPC分类号： H03F3/58 , H03F1/3247 , H03F2201/3231
摘要： The voltage variation between the electrodes of the tube of a microwave amplifier (1) causing a phase Shift of the output wave from the microwave amplifier (1), the process according to the invention consists of creating a phase shift of the wave entering the tube of the microwave amplifier (1) that is substantially proportional to the voltage variation and in the direction opposite the phase shift of the output wave caused by this voltage variation.
摘要翻译：微波放大器（1）的管的电极之间的电压变化导致来自微波放大器（1）的输出波的相移，根据本发明的方法包括产生进入管的波的相移的微波放大器（1），其基本上与电压变化成比例，并且与由该电压变化引起的与输出波相移的方向相反。

35. 发明授权

US4691173A RF input drive saturation control loop 失效
标题翻译： RF输入驱动饱和控制回路
公开(公告)号：US4691173A
公开(公告)日：1987-09-01
申请号：US945250
申请日：1986-12-22
申请人： Larry R. Mollett , Robert W. Goczalk
发明人： Larry R. Mollett , Robert W. Goczalk
IPC分类号： H03F3/58 , H03G3/20 , H03F7/00
CPC分类号： H03G3/22 , H03F3/58
摘要： A system for optimizing the RF input drive to a TWT amplifier over a frequency band of interest is disclosed. The system includes a microprocessor-based controller, an RF detector for detecting the TWT output, and a variable attenuator for adjusting the input drive to the TWT. The controller comprises an analog-to-digital converter for converting the video detector signals and providing digital RF level signals which are representative of the TWT output power level. Frequency data is also provided to the controller indicating the frequency of the RF exciter signals driving the TWT. The controller is, therefore, provided with frequency and RF level information, and is adapted to control the attenuator to adjust the TWT input drive for optimum TWT output. The system is operable in a calibration mode wherein the controller follows a calibration algorithm to determine the optimum attenuator setting, resulting in the maximum RF output, for each frequency of interest. The optimum attenuator setting is stored in an EEPROM for each drive frequency. The system is further operable in a normal mode wherein the controller sets the attenuator at the predetermined optimum setting for the present exciter frequency.
摘要翻译：公开了一种用于在感兴趣的频带上优化到TWT放大器的RF输入驱动的系统。该系统包括基于微处理器的控制器，用于检测TWT输出的RF检测器，以及用于调整TWT的输入驱动的可变衰减器。控制器包括用于转换视频检测器信号并提供表示TWT输出功率电平的数字RF电平信号的模数转换器。还向控制器提供频率数据，指示驱动TWT的RF激励器信号的频率。因此，控制器具有频率和RF电平信息，并且适于控制衰减器来调整TWT输入驱动以获得最佳的TWT输出。该系统在校准模式下可操作，其中控制器遵循校准算法以确定针对感兴趣的每个频率的最佳衰减器设置，从而产生最大RF输出。对于每个驱动频率，最佳衰减器设置存储在EEPROM中。该系统在正常模式下可进一步操作，其中控制器将衰减器设置在当前激励器频率的预定最佳设置。

36. 发明授权

US4118671A Traveling wave tube circuit 失效
标题翻译：行波管电路
公开(公告)号：US4118671A
公开(公告)日：1978-10-03
申请号：US768795
申请日：1977-02-15
申请人： Denis J. Connolly
发明人： Denis J. Connolly
IPC分类号： H03F3/58
CPC分类号： H03F3/58
摘要： A traveling wave tube (TWT) has a slow wave structure (SWS) which is severed into two or more sections. A signal path, defined below, connects the end of an SWS section to the beginning of the following SWS section. The signal path comprises an impedance matching coupler (IMC), followed by an isolator, a variable phase shifter, and a second IMC. The aggregate band pass characteristic of the components in the signal path is chosen to reject, or strongly attenuate, all frequencies outside the desired operating frequency range of the TWT and yet pass, with minimal attenuation in the forward direction, all frequencies within the desired operating frequency range. The isolator is chosen to reject, or strongly attenuate, waves, of all frequencies, which propagate in the backward direction. The aggregate phase shift characteristic of the components in the signal path is chosen to apply signal power to the beginning of the following SWS section with the phase angle yielding maximum efficiency.
摘要翻译：行波管（TWT）具有分为两个或多个部分的慢波结构（SWS）。下面定义的信号路径将SWS部分的末端连接到以下SWS部分的开头。信号路径包括阻抗匹配耦合器（IMC），其后是隔离器，可变移相器和第二IMC。选择信号路径中的组件的总带通特性来拒绝或强烈地衰减TWT的期望工作频率范围之外的所有频率，并且在正向方向上以最小的衰减通过所需操作中的所有频率频率范围。选择隔离器来抑制或强烈地衰减在向后传播的所有频率的波。选择信号路径中的分量的聚合相移特性，以将信号功率施加到随后的SWS部分的开始处，相位角产生最大效率。

37. 发明授权

US3950710A Wide band, in-line, microwave amplifier 失效
标题翻译：宽带，在线，微波放大器
公开(公告)号：US3950710A
公开(公告)日：1976-04-13
申请号：US99196
申请日：1970-12-17
申请人： Martin B. Covington, Jr.
发明人： Martin B. Covington, Jr.
IPC分类号： H03F3/58 , H03F3/60
CPC分类号： H03F3/58
摘要： A wide band, in-line, microwave amplifier having a large gain bandwidth product includes a coaxial tetrode located within a cavity. High gain in a relatively short active section of the amplifier results from close placement of the tetrode control grid to the centrally located cathode. Wide bandwidth is afforded by constant dimensional relationships along the transmission section of the device and by matching the impedance of the device to the load fed by the device.

38. 发明授权

US3684963A Traveling wave tube,frequency converting telecommunication repeater 失效
标题翻译：行波管，频率转换电信代理
公开(公告)号：US3684963A
公开(公告)日：1972-08-15
申请号：US3684963D
申请日：1970-04-13
申请人： THOMSON CSF
发明人： HENRY DOMINIQUE
IPC分类号： H01J23/26 , H01J25/38 , H03F3/48 , H03F3/58
CPC分类号： H01J23/26 , H01J25/38 , H03F3/48 , H03F3/58
摘要： A telecommunication repeater comprises a travelling wave tube which amplifier the received signal along a portion of the delay line thereof. The amplified signal is fed back to the input after undergoing a frequency change. The amplified signal at the frequency resulting from the frequency change is collected at the output of the tube.

39. 发明授权

US2868980A Frequency changer and wave amplifier 失效
标题翻译：变频器和波形放大器
公开(公告)号：US2868980A
公开(公告)日：1959-01-13
申请号：US62818456
申请日：1956-12-13
申请人： BELL TELEPHONE LABOR INC
发明人： SOUTHWORTH GEORGE C
IPC分类号： H01J25/00 , H03D9/06 , H03F3/58
CPC分类号： H03F3/58 , H01J25/00 , H03D9/06

40. 发明授权

US10074505B2 Perovskites as ultra-low work function electron emission materials 有权
公开(公告)号：US10074505B2
公开(公告)日：2018-09-11
申请号：US15372726
申请日：2016-12-08
申请人： Wisconsin Alumni Research Foundation
发明人： Ryan Matthew Jacobs , Dane Morgan , John Booske
IPC分类号： H01J45/00 , H01J19/062 , H01J19/064 , H01J25/42 , H01J23/04 , H03F3/58 , H03F3/189
CPC分类号： H01J19/062 , H01J19/064 , H01J23/04 , H01J25/42 , H01J45/00 , H03F3/189 , H03F3/58 , H03F2200/451
摘要： An electron emitter device is provided comprising a cathode comprising a conductive transition metal perovskite oxide comprising mobile conducting electrons exhibiting a conductivity of at least 10−6 Ω−1-cm−1 at room temperature, the transition metal perovskite oxide having a surface from which the mobile electrons are induced to emit upon receiving sufficient energy from an energy source; and an anode electrically coupled to the cathode and positioned to define an interelectrode conductive region between the anode and the cathode, onto which anode the emitted electrons are collected. The transition metal perovskite oxide may have formula Sr1-xBaxVO3. Related methods and devices based on the electron emitter device are also provided.

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