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公开(公告)号：US5534824A
公开(公告)日：1996-07-09
申请号：US326113
申请日：1994-10-19
Applicant: Ervin J. Nalos , James C. Axtell
Inventor： Ervin J. Nalos , James C. Axtell
CPC classification number: H01J25/00
Abstract: Disclosed is a method and apparatus for generating a very fast electron pulse (30) in a vacuum. The electron source comprises a pulse-forming line (12), a solid-state switch (14), a cold field-emitting cathode (16), and an anode grid (18). The anode grid forms a portion of a side of an evacuated circuit (20) that may be used to produce an oscillating output signal or that may be a portion of a waveguide carrying an rf signal to be amplified. In operation, the pulse-forming line is charged to a desirable voltage. The solid-state switch is then closed, coupling the pulse-forming line to the cathode. An electric field develops between the cathode and anode grid. Under the influence of the electric field, the cathode emits an electron current pulse that is attracted by the anode grid. The current pulse enters the region between the anode and closure grids, and interacts with the electromagnetic field in the cavity at the appropriate time to add its energy to the electromagnetic field of the cavity. A group of electron sources can be employed to provide rf generation or wideband amplification in a waveguide circuit through proper timing of the closure of a set of cathode-switch elements configured along the direction of propagation of a wave to be amplified. By proper selection of timing, a very flexible set of output frequencies and waveforms may be obtained. The propagating waveguide circuit may also be made resonant by shorting both ends, and configured for pulse-to-pulse frequency diversity by properly timing the cathode-switch current sources to generate alternative frequencies. The multiple-source resonant circuit can also be used to generate very high peak power pulses by using the set of cathode-switch sources repetitively to build up a high voltage across the cavity, with the output load disconnected, and then to discharge the built-up voltage into the load by closing a switch in the output circuit at the appropriate time.
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公开(公告)号：US4760311A
公开(公告)日：1988-07-26
申请号：US885632
申请日：1986-06-15
Applicant: Roy E. Wootton
Inventor： Roy E. Wootton
IPC: H01J25/00
CPC classification number: H01J25/00
Abstract: A sub-nanosecond rise time megavolt pulse generator is disclosed. The generator utilizes an induction energy store together with electron beams for generating a sub-nanosecond high voltage pulse wave-front. The electron beams are deflected to establish the wave-front. In a preferred form multiple electron beams together with a waveguide of particular shape provide simultaneous converging wave-fronts that are directed to a local area.
Abstract translation: 公开了一种亚纳秒上升时间兆伏特脉冲发生器。 发电机与电子束一起使用感应能量存储器，用于产生亚纳秒级高压脉冲波前。 电子束被偏转以建立波前。 在优选形式中，多个电子束与特定形状的波导一起提供了引导到局部区域的同时会聚的波前。
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23.发明授权Active dielectric waveguide amplifier or oscillator using a high density charged particle beam 失效有源介质波导放大器或使用高密度带电粒子束的振荡器
公开(公告)号：US4389593A
公开(公告)日：1983-06-21
申请号：US255121
申请日：1981-04-17
Applicant: Charles M. DeSantis , Louis J. Jasper, Jr.
Inventor： Charles M. DeSantis , Louis J. Jasper, Jr.
IPC: H01J25/00
CPC classification number: H01J25/00
Abstract: A circuitless particle beam device for relatively high frequency amplifierr oscillator applications that eliminates the requirement for an internal RF slow wave structure. A circularly polarized RF energy wave propagates on a relatively high density particle beam within an oversized waveguide and interacts with the beam which exhibits a relatively high dielectric constant. The high density beam acts as an active dielectric waveguide serving the dual purpose of a slow wave circuit and amplification source, and accordingly guides and amplifies the RF energy when a condition of beam and wave synchronism is met.
Abstract translation: 用于相对高频放大器或振荡器应用的无电路粒子束装置，消除了对内部RF慢波结构的要求。 圆极化RF能量波在超大波导内的相对高密度的粒子束上传播，并且与表现出较高介电常数的光束相互作用。 高密度光束用作用于慢波电路和放大源的双重目的的有源电介质波导，因此当满足波束和波同步的条件时，引导和放大RF能量。
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公开(公告)号：US3733510A
公开(公告)日：1973-05-15
申请号：US3733510D
申请日：1971-08-17
Applicant: US ARMY
Inventor： FISCHER P , WURTHMANN G
Abstract: Amplifying and oscillating devices wherein an element beam from an appropriate electron gun is directed through an apertured microwave cavity resonator means and bombards a coaxially mounted semiconductor p-n junction. In the case of an amplifier, an input r-f signal is coupled into the cavity resonator and modulates the electron beam. In the case of an oscillator, a pair of closely coupled microwave cavities is used to achieve the feedback essential to oscillation. In either case, a microwave cavity resonator means can be tuned mechanically or thermally.
Abstract translation: 放大和振荡装置，其中来自适当电子枪的元件束被引导通过有孔微波谐振器装置并且轰击同轴安装的半导体p-n结。
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公开(公告)号：US3346819A
公开(公告)日：1967-10-10
申请号：US37338564
申请日：1964-06-08
Applicant: UNIV CALIFORNIA
Inventor： BIRDSALL CHARLES K
IPC: H01J25/00
CPC classification number: H01J25/00
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Patent Agency Ranking
公开(公告)号：US3178656A
公开(公告)日：1965-04-13
申请号：US8926661
申请日：1961-02-14
Applicant: NAT ENGINEERING SCIENCE CO
Inventor： PETROFF MICHAEL D
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公开(公告)号：US2942144A
公开(公告)日：1960-06-21
申请号：US63981457
申请日：1957-02-12
Applicant: SYLVANIA ELECTRIC PROD
Inventor： WEIBEL GERHARD E
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公开(公告)号：US2797354A
公开(公告)日：1957-06-25
申请号：US31236252
申请日：1952-09-30
Applicant: PHILIPS CORP
Inventor： DE VRIES GERRIT , GESINUS DIEMER
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公开(公告)号：US2687491A
公开(公告)日：1954-08-24
申请号：US66981146
申请日：1946-05-15
Applicant: LEE GEORGE H
Inventor： LEE GEORGE H
IPC: H01J25/00
CPC classification number: H01J25/00
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