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8138838 Electron beam switch  
The present invention is directed to an electron beam crossbar switch for interconnection between communication units. The crossbar switch includes an array of electrically charged particle emitter...
7671687 Electron beam RF amplifier and emitter  
RF field is sensed to produce an incoming voltage that drives a microarray of electron guns in a sweep pattern towards a detector array. The electron guns emit a beam current that may amplify the...
7135917 Left-handed nonlinear transmission line media  
A left-handed nonlinear transmission line system has multiple nonlinear capacitors connected in series between input and output terminals and multiple inductances connected in parallel between the...
6987360 Backward wave coupler for sub-millimeter waves in a traveling wave tube  
A slow wave structure for coupling RF energy with an electron beam comprises a co-propagating RF section including a plurality of pins having a uniform separation from the plane of an electron beam...
5825140 Radio-frequency type charged particle accelerator  
A radio-frequency type charged particle accelerator includes a RFQ accelerator and a rear stage RF accelerator both of which are contained in a single evacuated chamber. The RFQ accelerator has...
5363054 Double beam cyclotron maser  
A double beam cyclotron maser comprising two electron guns for introducing two electron beams traveling parallel to each other at different speeds into an electron drift tube/waveguide. The beams...
4801847 Charged particle accelerator using quadrupole electrodes  
A charged particle accelerator is provided with quadrupole electrodes with surfaces that are opposed to each other and are undulated, and with an external resonance circuit. The external resonance...
4533875 Wide-band gyrotron traveling-wave amplifier  
A high power amplifier for amplifying millimeter-wave radiation comprising: a length of metallic waveguide tapered from a small cross-sectional end to a larger cross-sectional end; a magnetron-type...
4370621 High efficiency gyrotron oscillator and amplifier  
An electron cyclotron maser high-frequency generator/amplifier having a cavity resonator positioned in an axial magnetic field. A spiralling beam of relativistic electrons is injected into the...
4350927 Means for the focusing and acceleration of parallel beams of charged particles  
Apparatus for focusing beams of charged particles comprising planar arrays of electrostatic quadrupoles. The array may be assembled from a single component which comprises a support plate...
4224576 Gyrotron travelling-wave amplifier  
An apparatus for amplifying coherent radiation at millimeter and submillimeter wavelengths includes the combination of a travelling-wave-tube cyclotron-maser-amplifier structure and a...
4105890 Device for electron-beam heating of materials  
A device for electron-beam heating of materials comprises an electron gun and an electromagnetic electron beam control system with a rectangular magnetic circuit. The opposite rods of the magnetic...
3549891 CYCLOTRON RESONANCE PHOTOTUBE HAVING AXIAL MAGNETIC FIELD AND TRANSVERSE ELECTRIC FIELD  
3500108 ELECTRON-BEAM TUBE FOR FREQUENCY MULTIPLICATION  
3474283 CYCLOTRON WAVE UPCONVERTER  
3449678 PARAMETRIC AMPLIFIER  
3445748 MICROWAVE POWER RECTIFIERS  
3398376 Relativistic electron cyclotron maser  
3379921 Crossed field electron tube having input and output cavities and drift region defined by a pair of high conductivity non-magnetic plates  
3375459 Electron beam tube with transverse wave modulation for the amplification of high-frequency signals  
3373310 Cathode ray tube selective deflection amplifier using a quadrupole lens of critical length  
3373309 Electron beam tube for frequency multiplication  
3350559 Monopole mass spectrometer having one ceramic electrode coated with metal to within a short distance of each end  
3315174 Multiple resonant cyclotron wave coupler for nondegenerate parametric amplifier  
3315173 Beam refrigeration by means of large cathode magnetic fields used in resistive load and/or with low noise amplifier  
3315152 Adjustable voltage divider circuit  
3304461 Support for elongated electrodes of electron beam tube  
3300728 Quadrupole parametric amplifier with gradual pump transition  
3296484 Low magnetic field cyclotron wave couplers  
3296542 Cyclotron and synchronous parametric amplifiers and synchronous oscillators and isolators using bifilar helix coupler  
3296543 Positive synchronous wave bifilar helix coupler and parametric amplifiers  
3289091 Cyclotron wave tunable filter-constant gain parametric amplifier tube  
3275943 Dual output channel electron beam parametric amplifier with noise elimination  
3275880 Electron coupling system, coupling through the envelope wall of discharge device by electromagnetic coupling  
3271731 Electron beam parametric amplifier with positive ion elimination  
3268754 Electron beam amplifying tube with low noise electron gun  
3265978 D. c. pumped quadrupole parametric amplifier  
3260961 Microwave oscillator  
3252104 D.c. quadrupole structure for parametric amplifier  
3251025 D.c. modulation expander with u-shaped helices for parametric amplifiers  
3251001 Broadband coupling circuit for electron beam parametric amplifier  
3247395 High efficiency cyclotron-wave parametric amplifier and harmonic generator  
3238465 D. c. focused and pumped parametric amplifier  
3237114 Crossed-field type of parametric amplifier with inhomogenous pump field  
3234476 D.c. pumped cross-field type of parametric amplifier  
3233182 Parametric electronic signal amplifying methods and apparatus  
3233183 Parametric amplifier using an acoustical wave to passively couple two electromagnetic waves having different velocities of propagation  
3231742 Frequency modulation optical receiver system  
3231825 D.c. pumped cyclotron wave parametric amplifier  
3230473 Electron beam signal generators using parametric pump or similar amplifying section  
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