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51. 发明授权

US2949558A High efficiency velocity modulation devices 失效
标题翻译：高效调速装置
公开(公告)号：US2949558A
公开(公告)日：1960-08-16
申请号：US69137157
申请日：1957-10-21
申请人： BELL TELEPHONE LABOR INC
发明人： RUDOLF KOMPFNER , QUATE CALVIN F
IPC分类号： H01J23/027 , H01J25/78
CPC分类号： H01J23/0275 , H01J25/78

52. 发明授权

US2890375A Collector electrodes for klystron tubes 失效
标题翻译：用于速调管的收集器电极
公开(公告)号：US2890375A
公开(公告)日：1959-06-09
申请号：US54094255
申请日：1955-10-17
申请人： ENGLISH ELECTRIC VALVE CO LTD
发明人： CHARLES RUGGLES PERCY
IPC分类号： H01J23/027
CPC分类号： H01J23/027

53. 发明授权

US2363962A High frequency apparatus 失效
公开(公告)号：US2363962A
公开(公告)日：1944-11-28
申请号：US35383340
申请日：1940-08-23
申请人： RCA CORP
发明人： OSKAR HEIL
IPC分类号： G02B23/12 , H01J23/027 , H01J25/00 , H01J25/02 , H01J25/06
CPC分类号： H01J23/0275 , G02B23/12 , H01J25/00 , H01J25/02 , H01J25/06

54. 发明申请

US20220399178A1 MICROWAVE TUBE AND METHOD FOR CONTROLLING THE SAME 有权
公开(公告)号：US20220399178A1
公开(公告)日：2022-12-15
申请号：US17779342
申请日：2020-12-01
申请人： NEC NETWORK AND SENSOR SYSTEMS, LTD.
发明人： Tetsuo MACHIDA
IPC分类号： H01J23/087 , H01J23/06 , H01J23/027
摘要： A microwave tube comprises an electron gun that emits an electron beam; a magnetic circuit that focuses the electron beam emitted from the electron gun; a collector that captures the electron beam that has passed through the magnetic circuit; a high frequency circuit that is spirally arranged around the electron beam focused by the magnetic circuit and that transmits a high frequency; and a magnetic body part arranged around the electron gun so as to be movable in an emission direction of the electron beam, wherein a high frequency output from the high frequency circuit is controlled to be constant by moving the magnetic body part in an emission direction of the electron beam.

55. 发明授权

US11270863B2 Microwave amplification device including a microwave electron tube having a getter that can be controlled 有权
公开(公告)号：US11270863B2
公开(公告)日：2022-03-08
申请号：US16487354
申请日：2018-02-16
申请人： NEC NETWORK AND SENSOR SYSTEMS, LTD.
发明人： Taishi Masuda
IPC分类号： H01J7/18 , H01J23/26 , H01J23/027 , H01J23/087 , H01J25/34 , H03F3/58 , H01J23/12
摘要： The objective of the invention is to provide a microwave tube, or the like, wherein gas adsorption action of a getter may be satisfactorily performed independently from a microwave amplification operation. In order to solve this problem, this microwave electron tube comprises: a helix wherein a microwave may progress oriented from an input section to an output section within a helical tube; an electron gun emitting an electron flow oriented toward the helix; a focusing device causing the electron flow to traverse the vicinity of the helix in the direction of a collector; the collector absorbing the electron flow; and a getter having a heater insulated from the cathode provided in the electron gun.

56. 发明申请

US20180286622A1 ELECTRON GUN, ELECTRON TUBE AND HIGH-FREQUENCY CIRCUIT SYSTEM 审中-公开
公开(公告)号：US20180286622A1
公开(公告)日：2018-10-04
申请号：US15762874
申请日：2016-09-16
申请人： NEC NETWORK AND SENSOR SYSTEMS, LTD.
发明人： Yukihira NAKAZATO , Eiji FUJIWARA
IPC分类号： H01J23/34 , H01J23/04 , H01J23/06 , H01J23/027
CPC分类号： H01J23/34 , H01J23/027 , H01J23/04 , H01J23/06 , H01J23/065 , H01J23/087
摘要： The purpose is to make it possible to autonomously suppress a reduction in an electron beam without providing a means for supervising the electron beam intensity of a monitor or the like. An electron gun, provided with: a heater (12) in which one terminal serves as a heater terminal (H) and the other terminal serves as a shared terminal (HK), and in which a low-voltage power supply (21) is connected between the terminals, the heater (12) generating heat due to a current being supplied from the low-voltage power supply (21); and a cathode electrode (11) connected to the shared terminal (HK) and heated by the heater (12) to discharge thermal electrons. A cathode current (Ik) due to the thermal electrons discharged from the cathode electrode (11), and a current (Ih) due to the low-voltage power supply, flow in opposite directions through the heater (12).

57. 发明授权

US10068738B2 Traveling wave tube and high-frequency circuit system 有权
公开(公告)号：US10068738B2
公开(公告)日：2018-09-04
申请号：US15319845
申请日：2015-06-26
申请人： NEC Network and Sensor Systems, Ltd.
发明人： Takatsugu Munehiro
IPC分类号： H01J25/34 , H01J23/087 , H01J23/04 , H01J23/065 , H01J23/027
摘要： Provided are a traveling wave tube and a high-frequency circuit system such that the product life span of the traveling wave tube operating in multiple modes can be extended while variations in gain and amplification efficiency that accompany switching of the operation modes can be suppressed. The traveling wave tube comprises: an electron gun equipped with a cathode that releases electrons, and a heater that provides the cathode with heat energy for releasing the electrons; a helix causing an RF signal to interact with an electron beam formed from the electrons released by the electron gun; a collector for catching the electron beam emitted by the helix; an anode whereby the electrons released from the electron gun are guided into the helix; and a magnetic field application device for generating a magnetic field in order to change the diameter of the electron beam, said magnetic field application device being supplied with electric power for generating the magnetic field from the outside.

58. 发明申请

US20170140892A1 TRAVELING WAVE TUBE AND HIGH-FREQUENCY CIRCUIT SYSTEM 审中-公开
公开(公告)号：US20170140892A1
公开(公告)日：2017-05-18
申请号：US15319845
申请日：2015-06-26
申请人： NEC Network and Sensor Systems, Ltd.
发明人： Takatsugu MUNEHIRO
IPC分类号： H01J23/087 , H01J23/065 , H01J23/027 , H01J23/04
CPC分类号： H01J23/087 , H01J23/027 , H01J23/04 , H01J23/06 , H01J23/065 , H01J23/0873 , H01J23/34 , H01J25/34 , H01J25/42
摘要： Provided are a traveling wave tube and a high-frequency circuit system such that the product life span of the traveling wave tube operating in multiple modes can be extended while variations in gain and amplification efficiency that accompany switching of the operation modes can be suppressed. The traveling wave tube comprises: an electron gun equipped with a cathode that releases electrons, and a heater that provides the cathode with heat energy for releasing the electrons; a helix causing an RF signal to interact with an electron beam formed from the electrons released by the electron gun; a collector for catching the electron beam emitted by the helix; an anode whereby the electrons released from the electron gun are guided into the helix; and a magnetic field application device for generating a magnetic field in order to change the diameter of the electron beam, said magnetic field application device being supplied with electric power for generating the magnetic field from the outside.

59. 发明授权

US09646800B2 Traveling wave tube system and control method of traveling wave tube 有权
公开(公告)号：US09646800B2
公开(公告)日：2017-05-09
申请号：US14230171
申请日：2014-03-31
申请人： NEC Network and Sensor Systems, Ltd.
发明人： Junichi Matsuoka , Junichi Kobayashi
IPC分类号： H01J23/02 , H01J23/34 , H01J23/027 , H01J25/34
CPC分类号： H01J23/34 , H01J23/027 , H01J25/34
摘要： A traveling wave tube system includes a traveling wave tube, and a power supply device for supplying required power supply voltages to the respective electrodes of the traveling wave tube. The power supply device includes a control voltage generation circuit for generating a control voltage which is a negative DC voltage on the basis of a ground potential and supplying the control voltage to the anode, an anode voltage generation circuit for generating an anode voltage which is a negative DC voltage on the basis of the potential of the anode and supplying the anode voltage to the cathode, and a collector voltage generation circuit for generating a collector voltage which is a positive DC voltage on the basis of the potential of the cathode and supplying the collector voltage to the collector.

60. 发明申请

US20140217885A1 Pulsed Depressed Collector 有权
标题翻译：脉冲抑郁收藏家
公开(公告)号：US20140217885A1
公开(公告)日：2014-08-07
申请号：US14174637
申请日：2014-02-06
申请人： The Board of Trustees of the Leland Stanford Junior University
发明人： Mark A. Kemp
IPC分类号： H01J23/027 , H01J23/34
CPC分类号： H01J23/0275 , H01J23/34
摘要： A high power RF device has an electron beam cavity, a modulator, and a circuit for feed-forward energy recovery from a multi-stage depressed collector to the modulator. The electron beam cavity include a cathode, an anode, and the multi-stage depressed collector, and the modulator is configured to provide pulses to the cathode. Voltages of the electrode stages of the multi-stage depressed collector are allowed to float as determined by fixed impedances seen by the electrode stages. The energy recovery circuit includes a storage capacitor that dynamically biases potentials of the electrode stages of the multi-stage depressed collector and provides recovered energy from the electrode stages of the multi-stage depressed collector to the modulator. The circuit may also include a step-down transformer, where the electrode stages of the multi-stage depressed collector are electrically connected to separate taps on the step-down transformer.
摘要翻译：高功率RF器件具有电子束腔，调制器和用于从多级压缩式集电器到调制器的前馈能量回收的电路。电子束腔包括阴极，阳极和多级下压集电极，并且调制器被配置为向阴极提供脉冲。通过由电极级看到的固定阻抗来确定多级压陷集电极的电极级的电压浮动。能量回收电路包括：存储电容器，其动态地偏置多级压缩集电极的电极级的电位，并将回收的能量从多级压缩集电极的电极级提供给调制器。电路还可以包括降压变压器，其中多级集电极的电极级电连接到降压变压器上的分离抽头。

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