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1. 发明申请

US20180316326A1 HIGH-EFFICIENCY AMPLIFIER 审中-公开
公开(公告)号：US20180316326A1
公开(公告)日：2018-11-01
申请号：US15769874
申请日：2016-10-21
申请人： Airbus Defence and Space Limited
发明人： Ian Morris , Nigel Wheatley , Nicolas Celerier
IPC分类号： H03F3/58 , H03F1/06 , H03F3/68 , H03F3/189 , H01Q21/22 , H01Q1/28
CPC分类号： H03F3/58 , B64G1/66 , H01Q1/288 , H01Q21/22 , H03F1/06 , H03F3/189 , H03F3/604 , H03F3/68 , H03F2200/258 , H03F2200/451
摘要： There is provided an electronic amplification apparatus (40) comprising a travelling wave tube amplifier (20) and a limiter (10), wherein the configuration of the amplifier (20) is optimised whilst maintaining signal linearity for operation with improved DC power efficiency at an operating point below saturation, and the limiter (10) is arranged to prevent the output power of the amplifier from going beyond a predetermined limit. This can prevent possible damage. There is also provided a multiport amplifier system (50) containing the electronic amplification apparatus (40), and a multi-feed, multi-amplifier phased array type antenna system (130) containing the electronic amplification apparatus (40), and a satellite communications system comprising the electronic amplification apparatus (40) or the multiport amplifier system (50) or the multi-feed, multi-amplifier phased array type antenna system (130).

2. 发明申请

US20170207055A1 PEROVSKITES AS ULTRA-LOW WORK FUNCTION ELECTRON EMISSION MATERIALS 审中-公开
公开(公告)号：US20170207055A1
公开(公告)日：2017-07-20
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： H01J19/062 , H01J19/064 , H03F3/189 , H01J23/04 , H03F3/58 , H01J45/00 , H01J25/42
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.

3. 发明申请

US20160006405A1 AMPLIFIER DEVICE WITH AT LEAST ONE MICROWAVE TUBE 有权
标题翻译：具有至少一个微波管的放大器器件
公开(公告)号：US20160006405A1
公开(公告)日：2016-01-07
申请号：US14791135
申请日：2015-07-02
申请人： THALES
发明人： Christophe BALAYER , Bruno TRANCART
IPC分类号： H03F3/54 , H03F3/56 , H03F3/58
CPC分类号： H03F3/54 , H01J23/34 , H03F3/56 , H03F3/58 , H03F2200/451 , H04B7/18515
摘要： An amplifier device with at least one microwave tube, intended to be mounted on a satellite, includes a high voltage section directly connected to said microwave tube or tubes, a low voltage section, and a low voltage cabling assembly provided with low voltage connectors at the ends thereof connecting said low and high voltage sections.
摘要翻译：具有至少一个微波管的放大器装置，旨在安装在卫星上，包括直接连接到所述微波管或管的高压部分，低压部分以及在所述低压部分设置有低压连接器的低电压布线组件其端部连接所述低压部分和高压部分。

4. 发明授权

US07688132B2 Method and apparatus for RF input coupling for inductive output tubes and other emission gated devices 有权
标题翻译：用于感应输出管和其他发射门控器件的RF输入耦合的方法和装置
公开(公告)号：US07688132B2
公开(公告)日：2010-03-30
申请号：US11946718
申请日：2007-11-28
申请人： Mark Frederick Kirshner , Richard Donald Kowalczyk , Craig Bisset Wilsen
发明人： Mark Frederick Kirshner , Richard Donald Kowalczyk , Craig Bisset Wilsen
IPC分类号： H01J25/02
CPC分类号： H03F3/56 , H01J25/34 , H03F3/58
摘要： An input circuit of a microwave amplification tube achieves improved instantaneous bandwidth. By directly coupling the transmission line carrying a modulating radio frequency signal to a control grid, a low-Q input circuit is created that increases the fractional bandwidth of the system. A resonant cavity may be used to generate a voltage across the gap between the cathode and the control grid. Alternative geometries are presented whereby the electron beam is emitted from a cathode connected either to the center conductor of the transmission line or to the outer conductor of the transmission line. Alternatively, the electric field of the radio-frequency signal propagating through the transmission line may be used to create a voltage across the gap between the cathode and the control grid without using a resonant cavity. Likewise, alternative geometries are presented by which the electron beam is emitted from a cathode connected either to the center conductor or to the outer conductor of the transmission line.
摘要翻译：微波放大管的输入电路实现了改善的瞬时带宽。通过将携带调制射频信号的传输线直接耦合到控制网格，产生增加系统的分数带宽的低Q输入电路。谐振腔可用于在阴极和控制栅之间的间隙上产生电压。呈现替代的几何形状，由此电子束从连接到传输线的中心导体或传输线的外部导体的阴极发射。或者，通过传输线传播的射频信号的电场可用于在不使用谐振腔的情况下在阴极和控制栅之间的间隙上产生电压。同样，提出了替代的几何形状，通过该几何形状，电子束从连接到中心导体或传输线的外部导体的阴极发射。

5. 发明申请

US20080164816A1 Dynamic depressed collector 有权
公开(公告)号：US20080164816A1
公开(公告)日：2008-07-10
申请号：US12075870
申请日：2008-03-14
申请人： Michael J. Cascone , John Arthur Lazar , John Brinson Overstreet
发明人： Michael J. Cascone , John Arthur Lazar , John Brinson Overstreet
IPC分类号： H01J23/02
CPC分类号： H03F3/58 , H01J23/0275 , H01J23/34 , H03F1/30 , H03F2200/15
摘要： A biasing system for use with a multi-stage depressed collector of a high power amplifier includes one or more adjustable power sources. A power controller provides control signals to the power sources depending on the operational RF power level. For low power applications, biasing of collector electrodes is reduced such that savings in energy costs are realized, and operational temperature and wear are reduced. The control signals are based on values stored in a look-up table. For multiple depressed electrodes, biasing can be controlled in tandem or independently.

6. 发明授权

US06674326B1 Digitally controllable nonlinear pre-equalizer 失效
标题翻译：数字可控非线性预均衡器
公开(公告)号：US06674326B1
公开(公告)日：2004-01-06
申请号：US10174423
申请日：2002-06-17
申请人： Remy O. Hiramoto , Susan E. Bach , Suzanne E. Kubasek , Thomas Cooper
发明人： Remy O. Hiramoto , Susan E. Bach , Suzanne E. Kubasek , Thomas Cooper
IPC分类号： H03F126
CPC分类号： H03F3/58 , H03F1/3223
摘要： A digitally controllable nonlinear pre-equalizer system receiving an input signal and generating an output signal, the system including a splitter for dividing the input signal into a first signal path and a second signal path, an attenuator and a time delay element in the first signal path, the attenuator and the time delay element operable to generate a linear signal, a mixer and a vector modulator in the second signal path, the mixer being responsive to a signal from a digital to analog converter coupled to a processor chip providing a digital signal to the digital to analog converter, the mixer and vector modulator operable to generate a nonlinear signal, and a summer for summing the linear signal and the nonlinear signal to generate the output signal.
摘要翻译：数字可控非线性预均衡器系统接收输入信号并产生输出信号，所述系统包括用于将输入信号分成第一信号路径和第二信号路径的分路器，第一信号中的衰减器和时间延迟元件所述衰减器和所述延迟元件可操作以在所述第二信号路径中产生线性信号，混频器和矢量调制器，所述混频器响应于耦合到处理器芯片的数模转换器的信号，所述处理器芯片提供数字信号数字到模拟转换器，混合器和向量调制器可操作以产生非线性信号，以及加法器，用于对线性信号和非线性信号求和以产生输出信号。

7. 发明申请

US20020093379A1 System and method for linearizing vacuum electronic amplification 有权
公开(公告)号：US20020093379A1
公开(公告)日：2002-07-18
申请号：US09759736
申请日：2001-01-12
发明人： Yehuda G. Goren , Charles E. Jensen , Donald R. Gagne , Tong Chen , Philip M. Lally
IPC分类号： H03F001/26
CPC分类号： H03F3/58
摘要： An amplifier system. The amplifier system includes a vacuum tube amplifier, an electron source voltage modulation circuit, and a linearization circuit. The vacuum tube amplifier includes an input signal terminal and an output signal terminal. The electron source voltage modulation circuit includes an input terminal coupled to one of the input signal terminal and the output signal of the vacuum tube amplifier, and includes an output terminal coupled to one of an electron source of the vacuum tube amplifier and an interaction region of the vacuum tube amplifier. The linearization circuit is coupled to the input signal terminal of the vacuum tube amplifier. In conjunction with or instead of the electron source voltage modulation circuit, the amplifier circuit may additionally include an electron beam control circuit, including an input terminal coupled to one of the input signal terminal and the output signal of the vacuum tube amplifier, and including an output terminal coupled to the electron source of the vacuum tube amplifier.

8. 发明授权

US5162965A Anti crow bar current interrupter for microwave tube transmitters 失效
标题翻译：用于微波管发射器的防撬棒电流断路器
公开(公告)号：US5162965A
公开(公告)日：1992-11-10
申请号：US722820
申请日：1991-06-28
申请人： Walter E. Milberger , Franklin B. Jones , Charles S. Kerfoot
发明人： Walter E. Milberger , Franklin B. Jones , Charles S. Kerfoot
IPC分类号： H03F1/54 , H03F3/58 , H03K17/691
CPC分类号： H03F1/54 , H03F3/58 , H03K17/691
摘要： A high-speed high-voltage FET current interrupter which opens the cathode circuit of microwave tubes when internal tube arcing occurs. By removing the detrimental fault current which causes degradation to the microwave tube body and grid, the longevity of the microwave tube and the pulse energy storage capacitor is greatly increased over those transmitters which use dissipative crow bar circuits. Even more important is that the transmitter reset time after an arc occurs is orders of magnitude faster than transmitters using crow bars or primary power interrupters when arcing occurs--an important feature when engaged in a "dog fight".
摘要翻译：一个高速高压FET电流断流器，当内管电弧发生时，它打开微波管的阴极电路。通过消除导致微波管体和电网劣化的有害故障电流，微波管和脉冲储能电容器的使用寿命比使用耗散式电冰箱电路的发射机大大增加。更重要的是，在电弧发生之后，发生电弧发生器之间的发射器复位时间比使用撬杠或主电源断路器的发射器快几个数量级，这是发生“狗斗”时的重要特征。

9. 发明授权

US4967162A Stripline traveling wave device and method 失效
标题翻译：行波行波装置及方法
公开(公告)号：US4967162A
公开(公告)日：1990-10-30
申请号：US149375
申请日：1988-01-28
申请人： Larry R. Barnett , Robert M. Phillips
发明人： Larry R. Barnett , Robert M. Phillips
IPC分类号： H01J25/34 , H03F3/58
CPC分类号： H01J25/34 , H03F3/58
摘要： A traveling-wave device for amplification of RF signals at microwave frequencies, primarily from UHF to submillimeter wavelengths, comprised primarily of broad-coupled parallel striplines of which one is a cathode stripline and the other a non-intercepting gate stripline disposed between conducting plates. Electrons are emitted from the cathode stripline and accelerated by DC electric fields through the non-intercepting gate stripline on which the microwave signal is propagating in a transmission mode which has reversed directions of the microwave electric field on each side of the gate stripline. The odd mode component of the microwave electric field, between the gate stripline and cathode stripline, serves to modulate and/or stimulate electron emission from the cathode stripline and the reversed direction of the microwave electric field between the gate stripline and the conducting plate decelerates the electrons to add their energy to the propagating wave for amplification. Positive feedback, due to the coupling of the growing RF propagating wave of the stripline system to the odd mode modulating signal, gives the amplifier large and continuous exponential gain.
摘要翻译：主要由UHF至亚毫米波长的微波频率放大RF信号的行波装置主要由广泛耦合的平行带状线组成，一条是阴极带状线，另一条是设置在导电板之间的非截止栅极线。电子从阴极带状线发射，并通过直流电场加速，通过微波信号传播的非截止栅极带状线，其在栅极线的每一侧具有相反的微波电场方向的传输模式。栅极带状线和阴极带状线之间的微波电场的奇数分量用于调制和/或刺激来自阴极带状线的电子发射，并且栅带状线与导电板之间的微波电场的相反方向减速电子将它们的能量加到传播波上进行放大。由于带状线系统生长的RF传播波与奇模调制信号的耦合，正反馈给予放大器大而连续的指数增益。

10. 发明授权

US4701717A Operating point-stabilized linearized traveling wave tube amplifier 失效
标题翻译：工作点稳定线性化行波管放大器
公开(公告)号：US4701717A
公开(公告)日：1987-10-20
申请号：US876936
申请日：1986-06-20
申请人： Wilhelm Radermacher , Johannes Czech
发明人： Wilhelm Radermacher , Johannes Czech
IPC分类号： H03F1/30 , H03F1/32 , H03F3/58 , H03F1/33
CPC分类号： H03F1/30 , H03F1/32 , H03F1/3252 , H03F3/58
摘要： A traveling wave tube transmission amplifier arrangement, including the series connection of a predistortion circuit, a preamplifier with limiter circuit and a traveling wave tube amplifier, which is provided with several stabilizing circuits. To limit the output power, a signal which is a measure of the output power of the traveling wave tube, e.g., a signal proportional to the collector current of the traveling wave tube, is fed to a threshold controller which governs a variable attenuator provided at the input of the transmission amplifier arrangement. Moreover, to provide compensation for aging effects, a remote control signal, which is determined on the basis of an intermodulation measurement, is fed to the preamplifier with limiter circuit.
摘要翻译：一种行波管传输放大器装置，包括预失真电路，具有限幅电路的前置放大器和行波管放大器的串联连接，其具有多个稳定电路。为了限制输出功率，作为行波管的输出功率的量度的信号，例如与行波管的集电极电流成比例的信号，被馈送到阈值控制器，阈值控制器控制设置在传输放大器装置的输入。此外，为了提供对老化效应的补偿，基于互调测量确定的遥控信号被馈送到具有限制器电路的前置放大器。

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