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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

US20180316320A1 METHOD FOR PRODUCING AN AMPLIFICATION STAGE FOR A VARIABLE ENVELOPE SIGNAL 审中-公开
公开(公告)号：US20180316320A1
公开(公告)日：2018-11-01
申请号：US15773051
申请日：2016-11-03
申请人： CENTRE NATIONAL D'ÉTUDES SPATIALES C N E S
发明人： Geoffroy SOUBERCAZE-PUN , Luc LAPIERRE
IPC分类号： H03F1/56 , H03F1/02 , H03F3/19 , H03F3/21 , H03F3/22 , H03F1/06 , H03F3/189 , H03F3/58
摘要： Disclosed is a method for producing a stage for amplifying the power of a variable envelope signal including at least one amplifier. For each amplifier, a form of ideal variation in average power POUTL is selected. For each value of each setting parameter and for each average input power value, a value of an optimisation criterion is calculated on the basis of the mathematical expectation of at least one optimisation parameter. An optimum value of each setting parameter is determined and the amplification stage is produced with a number of amplifiers in parallel determined on the basis of an average output power value and with, for each amplifier, matching circuits providing the optimum values of the setting parameters. The invention also relates to an amplification stage produced in this manner.

3. 发明申请

US20050174175A1 Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit 有权
标题翻译：具有可调放大的放大电路和包括这种放大电路的发射机系统
公开(公告)号：US20050174175A1
公开(公告)日：2005-08-11
申请号：US11033088
申请日：2005-01-10
申请人： Bernhard Heigelmayer , Harald Pretl
发明人： Bernhard Heigelmayer , Harald Pretl
IPC分类号： H03G3/10 , H03F1/06 , H03F1/32 , H03F3/24 , H03F3/45 , H03F3/68 , H03F3/72 , H04B1/04
CPC分类号： H03F3/45188 , H03F1/0205 , H03F1/32 , H03F3/24 , H03F3/68 , H03F3/72 , H03F2200/336 , H03F2200/78 , H03F2203/45244 , H03F2203/45268 , H03F2203/45541 , H03F2203/45544 , H03F2203/45564 , H03F2203/45618 , H03F2203/45638 , H03F2203/45702 , H03F2203/7203
摘要： The invention is directed to an amplifier circuit with adjustable gain which includes a plurality of parallel-connected differential amplifiers connected to a common cascode stage. An actuation unit is used to activate the differential amplifiers independently of one another on the basis of an applied control signal. The principle described makes it possible to dispense with inductances in the differential amplifier and hence to reduce unwanted crosstalk, while having a high linearity. Secondly, the amplifier's drawn current matches the respective output power which can be tapped off. Overall, the principle described is particularly suitable for use in UMTS mobile radios.
摘要翻译：本发明涉及一种具有可调增益的放大器电路，其包括连接到共用共源共栅级的多个并联连接的差分放大器。驱动单元用于基于所施加的控制信号彼此独立地启动差分放大器。所描述的原理使得可以省去差分放大器中的电感并因此减少不期望的串扰，同时具有高线性度。其次，放大器的拉电流与可分离的相应输出功率匹配。总体来说，所描述的原理特别适用于UMTS移动无线电。

4. 发明申请

US20050141639A1 Power booster using peak suppression and pre-distortion for terminal radios 有权
标题翻译：功率增强器使用终端无线电的峰值抑制和预失真
公开(公告)号：US20050141639A1
公开(公告)日：2005-06-30
申请号：US10747519
申请日：2003-12-30
申请人： Kiomars Anvari
发明人： Kiomars Anvari
IPC分类号： H03F1/02 , H03F1/06 , H03F1/32 , H04B1/04 , H04K1/02
CPC分类号： H04B1/0475 , H03F1/02 , H03F1/0205 , H03F1/3241 , H03F1/3247 , H03F1/3282 , H03F2201/3233 , H04B2001/0425
摘要： A technique to boost the output power of portable radio terminals without increasing the power dissipation is described. The input to the terminal transmit amplifier is modified by a peak-to-average reduction and amplitude pre-distortion circuit, prior to being applied to the amplifier. The peak-to-average reduction and pre-distortion circuit clips the baseband samples before applying any amplitude pre-distortion if they exceed a predefined value The peak-to-average reduction and pre-distortion circuit uses a lookup table to pre-distort the peak-to-average reduced signal. The amplitude pre-distortion lookup table is being updated at power up or power down of the terminal radio, during idle time, just before origination of a call, before termination of a call, or while the call is active. During the updating of the lookup table the radio could be in its normal transmit mode, or transmit into a dummy load using an analog transmit switch controlled from the peak-to-average reduction and pre-distortion circuit.
摘要翻译：描述了在不增加功率消耗的情况下提高便携式无线电终端的输出功率的技术。在施加到放大器之前，终端发射放大器的输入由峰值平均减小和幅度预失真电路修改。峰均平均减少和预失真电路在施加任何幅度预失真之前剪切基带采样，如果它们超过预定值，则峰均平均减少和预失真电路使用查找表来预失真峰均平均降低信号。振幅预失真查找表在终端无线电的上电或掉电期间，在空闲时间，呼叫发起之前，呼叫结束之前，或在呼叫激活时正在更新。在更新查找表期间，无线电可以处于其正常发射模式，或者使用从峰值平均减少和预失真电路控制的模拟发射开关发射到虚拟负载。

5. 发明授权

US4263617A System for the transmission of a composite television signal 失效
标题翻译：用于传输复合电视信号的系统
公开(公告)号：US4263617A
公开(公告)日：1981-04-21
申请号：US076776
申请日：1979-09-18
申请人： Henri Chemin , Claude Cluniat , Bernard Beltzer
发明人： Henri Chemin , Claude Cluniat , Bernard Beltzer
IPC分类号： H03F1/06 , H04N5/40 , H04N5/38
CPC分类号： H03F1/06 , H04N5/40 , H03F2200/198
摘要： The transmission system essentially involves separate amplification followed by a combination under predetermined conditions of relative amplitude and phase, of a carrier signal modulated by the video-frequency information and having a reduced carrier level with the same unmodulated carrier, thus permitting a considerable improvement in both efficiency and reliability of conventional transmitters.
摘要翻译：传输系统基本上涉及在由视频频率信息调制的载波信号的相对幅度和相位的预定条件下进行单独的放大，并且具有相同的未调制载波的载波电平降低，从而允许两者的显着改善传统发射机的效率和可靠性。

6. 发明授权

US3248663A High efficiency linear amplifier system 失效
标题翻译：高效线性放大器系统
公开(公告)号：US3248663A
公开(公告)日：1966-04-26
申请号：US26075863
申请日：1963-02-25
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： JACOB MARK I
IPC分类号： H03F1/02 , H03F1/06 , H03F3/217 , H03F3/24
CPC分类号： H03F3/217 , H03F1/0205 , H03F1/06 , H03F3/245

7. 发明授权

US2719190A High-efficiency translating circuit 失效
标题翻译：高效翻译电路
公开(公告)号：US2719190A
公开(公告)日：1955-09-27
申请号：US19242950
申请日：1950-10-27
申请人： BELL TELEPHONE LABOR INC
发明人： GORDON RAISBECK
IPC分类号： H03F1/06 , H03F1/07 , H03F5/00
CPC分类号： H03F5/00 , H03F1/06 , H03F1/07

8. 发明授权

US2623954A Electron discharge tube amplifier for signal voltages 失效
标题翻译：用于信号电压的放电管放大器
公开(公告)号：US2623954A
公开(公告)日：1952-12-30
申请号：US1512448
申请日：1948-03-16
申请人： HARTFORD NAT BANK & TRUST CO
发明人： ZELST JOHANNES JACOBUS ZAALBER
IPC分类号： B60D1/00 , H03F1/06 , H03F1/08 , H03F1/54 , H03F3/40 , H03F3/66 , H03G3/22
CPC分类号： B60D1/00 , H03F1/06 , H03F1/08 , H03F1/54 , H03F3/40 , H03F3/66 , H03G3/22

9. 发明授权

US2585804A Straight bar knitting machine 失效
公开(公告)号：US2585804A
公开(公告)日：1952-02-12
申请号：US7783649
申请日：1949-02-23
申请人： COTTON LTD W
发明人： EDWARD LYNAM JOHN , LEONARD BROWN
IPC分类号： D04B11/00 , H01C7/10 , H01P5/02 , H01P5/08 , H01P7/00 , H03B5/34 , H03F1/06
CPC分类号： H03F1/06 , D04B11/00 , H01C7/10 , H01P5/02 , H01P5/08 , H01P7/00 , H03B5/34

10. 发明授权

US2554132A Amplifier circuit 失效
标题翻译：放大器电路
公开(公告)号：US2554132A
公开(公告)日：1951-05-22
申请号：US68407146
申请日：1946-07-16
申请人： HARTFORD NAT BANK & TRUST CO
发明人： ZELST JOHANNES JACOBUS ZAALBER
IPC分类号： B60D1/00 , H03F1/06 , H03F1/08 , H03F1/54 , H03F3/40 , H03F3/66 , H03G3/22
CPC分类号： B60D1/00 , H03F1/06 , H03F1/08 , H03F1/54 , H03F3/40 , H03F3/66 , H03G3/22

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