|
Match
|
Document |
Document Title |
|
|
7230384 |
Robust RF interface in a TWT
Apparatus and methods provide a robust radio frequency (RF) interface for a helix-type traveling wave tube (TWT). As a vacuum device, the RF input to the TWT and the RF output from the TWT are...
|
|
|
7142052 |
Travelling wave amplifiers
A traveling wave amplifier (TWA) comprising two or more amplification modules, the inputs of adjacent amplification modules being connected together by a first inductance component of a first...
|
|
|
7088048 |
Device and process for switching and controlling an electron dose emitted by a micro-emitter
This invention relates to a device for switching and controlling an electron dose emitted by a micro-emitter comprising
a sensor module ( 30 ) that receives the output current from the...
|
|
|
7034462 |
Power supply circuit for traveling-wave tube which eliminates large relay and relay driving power supply
A power supply circuit for a traveling-wave tube disclosed herein eliminates a large relay and a relay driving power supply to reduce the size and cost and to make itself tolerable to vibrations...
|
|
|
6894439 |
Portable power converter pack
A portable power converter comprising input means to receive low voltage DC input, voltage converter means for converting the low voltage DC input into high DC voltage output, the voltage converter...
|
|
|
6777876 |
Power-supply unit for microwave tube
In a power-supply unit for a microwave tube, voltage between a helix power supply terminal and a cathode power supply terminal is divided into voltage slightly lower than the voltage of a collector...
|
|
|
6584675 |
Method for fabricating three dimensional traveling wave tube circuit elements using laser lithography
A method for constructing thermally and dimensionally stable traveling wave tube circuits having high dimensional stability, narrow tolerances, and very small size by providing a small hollow...
|
|
|
6356023 |
Traveling wave tube amplifier with reduced sever
A structure to eliminate non-fundamental space harmonics in helical traveling wave tubes is disclosed. A sever of moderate attenuation is produced by way of a conductive surface on nonconductive...
|
|
|
6356022 |
Tapered traveling wave tube
A structure to eliminate non-fundamental space harmonics in helical traveling wave tubes is disclosed. The helix radius and pitch are simultaneously varied over a short distance to improve the...
|
|
|
6184615 |
Traveling wave deflection system having helical conductors coiled on insulating cores of a specifiable specific dielectric constant
A vertical deflection system for a CRT is disclosed which has a pair of traveling wave deflectors disposed opposite each other across a path of beam from gun to target. Each deflector has a helical...
|
|
|
6049249 |
TWT with mismatched section for controlled gain variation with frequency
Apparatus compensating for gain variations versus frequency of a traveling wave tube (TWT) is disclosed. The apparatus provides an RF interaction circuit section designed with specified mismatches...
|
|
|
5862462 |
Power enhancement techniques for high power satellites
A satellite is formed with a signal translation and amplification system which includes at least one communication path. Each communication path includes a plurality of radiation-cooled TWTs...
|
|
|
5834971 |
RF amplifier including traveling wave tube with sequential stages
Multiple gain stages are provided in a single traveling wave tube amplifier (TWTA). Each gain stage comprises an interaction circuit, an associated RF input, and an associated RF output. The gain...
|
|
|
5742209 |
Four cavity efficiency enhanced magnetically insulated line oscillator
A four cavity, efficient magnetically insulated line oscillator (C4-E MILO) having seven vanes and six cavities formed within a tube-like structure surrounding a cathode. The C4-E MILO has a...
|
|
|
5723948 |
Helix travelling-wave tube with a maximum small signal gain at the operating voltage
A helix travelling-wave tube of the present invention includes a helix wave delay circuit having velocity tapers for improving a beam efficiency and reducing backward wave oscillation. The tube...
|
|
|
5649310 |
Signal translation and amplification system including a thermal radiation panel coupled thereto
A satellite is formed with a signal translation and amplification system which includes at least one communication path. Each communication path includes a plurality of radiation-cooled TWTs...
|
|
|
5525864 |
RF source including slow wave tube with lateral outlet ports
Multiple radio frequency (RF) outlet ports are provided along the side of a slow wave tube to establish a distributed RF output in response to the transmission of an e - beam through the tube. The...
|
|
|
5341066 |
Anisotropically loaded helix assembly for a traveling-wave tube
The present invention is an anisotropically loaded helix assembly for use in a traveling-wave tube, and the corresponding method for making the same. The present invention includes a helix circuit...
|
|
|
5196765 |
High RF isolation crossed-field amplifier
A crossed-field amplifier tube is constructed in which there is substantially no direct RF coupling between the output of the slow-wave structure on the anode and the input of the slow-wave...
|
|
|
5162747 |
Velocity modulation microwave amplifier with multiple band interaction structures
Two or more signal interaction structures (16,18), which may be klystron or traveling wave structures (32,50), are axially disposed in series between an electron gun (12) and a collector (14) for...
|
|
|
5162697 |
Traveling wave tube with gain flattening slow wave structure
A traveling wave tube (10) includes a coupled cavity type slow wave structure (100) having a driver stage (52) and an output section (101) with a primary section (64) and a velocity taper section...
|
|
|
5068569 |
Wave guide device having a periodic structure and improved heat dissipation
An element with periodic structure for guiding electromagnetic waves propagating along a longitudinal axis of the structure at a speed below the velocity of light is disclosed. The structure...
|
|
|
5038075 |
Traveling-wave deflection system in a cathode-ray tube with conducting core on helical conductor.
A traveling-wave deflection system comprising a pair of deflectors disposed opposite each other across the path of an electron beam from an electron gun to a screen in a cathode-ray tube. Each...
|
|
|
5023563 |
Upshifted free electron laser amplifier
A method is disclosed of employing free electron lasing action at a first frequency to achieve gain in output power at a second frequency. In a broadest sense, an electron beam is driven with an...
|
|
|
4970432 |
Travelling wave tube with coupling device between its delay line and external microwave circuits
A travelling-wave tube has a cylindrical sleeve containing a delay line and a coupling device between the delay line and an external microwave circuit for removal or injection of microwave energy....
|
|
|
4912366 |
Coaxial traveling wave tube amplifier
A coaxial TWT comprises a hollow beam gun which injects a thin annular beam between multifilar helices independently supported by thin-walled dielectric sleeves. The beam is focussed by a balanced,...
|
|
|
4906896 |
Disk and washer linac and method of manufacture
A coupled-cavity linear accelerator for accelerating charged particles to velocities greater than about one-third the speed of light. The accelerator includes a first tank for accelerating charged...
|
|
|
4866343 |
Re-entrant double-staggered ladder circuit
A slow-wave circuit for a TWT has periodic transverse plates extending across the axial by extending vacuum envelope. An opposed pair of apertures 24, 26 in each plate 20 couple adjacent cavities...
|
|
|
4859907 |
Traveling-wave tube with damping of undesired frequencies
A traveling-wave tube has coupled cells in a periodic arrangement defined between apertured irises separated by respective spacers. The spacers have dielectric waveguides terminating in lossly...
|
|
|
4855644 |
Crossed double helix slow-wave circuit for use in linear-beam microwave tube
A helix slow-wave circuit for use in a linear-beam microwave tube device, comprises a first helix formed by a first wire-like member wound in a first sense at a plurality of turns, and a second...
|
|
|
4829527 |
Wideband electronic frequency tuning for orotrons
An orotron for generating near millimeter wavelength radiation at a selectable output frequency within a wide frequency range, in which the orotron output power is automatically tuned...
|
|
|
4829261 |
Circuitless electron beam amplifier (CEBA)
A traveling wave type amplifier. The device features a pair of short helical input and output couplers through which an electron beam is projected. Application of an RF signal to the couplers...
|
|
|
4820688 |
Traveling wave tube oscillator/amplifier with superconducting RF circuit
Microwave oscillators and amplifiers which utilize a superconducting slow-wave circuit. The slow circuit is made from materials which exhibit superconductivity at relatively high critical...
|
|
|
4785261 |
Magnetically insulated transmission line oscillator
A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed...
|
|
|
4763043 |
P-N junction semiconductor secondary emission cathode and tube
A crossed-field amplifier has a cathode in the form of a P-N junction semiconductor which is biased to the conductive state to cause the crossed-field amplifier to amplify. The P and N regions of...
|
|
|
4745324 |
High power switch tube with Faraday cage cavity anode
A high-power switch tube is shown constructed from a plurality of electron guns each gun having a cathode and an anode. Between the cathode and anode is mounted a shadow grid closest to the cathode...
|
|
|
4733132 |
High energy accelerator
In an accelerator for accelerating charged particles by using electro-magnetic wave, in which a plurality of cells are disposed periodically, a washer-shaped electrode separated from the cylinder...
|
|
|
4709186 |
Coupled cavity travelling wave tubes
A coupled cavity travelling wave tube of the space harmonic type is provided wherein the interaction gaps in successive cavities are alternately offset towards the input end of the slow wave...
|
|
|
4695766 |
Traveling wave tube and its method of construction
A traveling wave tube made in accordance with this invention wherein the folded waveguide interaction circuit and the input/output transitions to standard waveguides are made of a single piece of...
|
|
|
4683400 |
Travelling wave tube and helix for such travelling wave tube
A travelling wave tube comprising a tube and a helix mounted in the tube, the helix being made of diamond and being coated at least partially with an electrically conductive material.
|
|
|
4647816 |
Travelling-wave tube and method for the manufacture thereof
A travelling-wave tube comprising a delay line in the form of a helix line which is disposed inside of a solid metal vacuum envelope. A high-performance travelling-wave tube whose delay line is...
|
|
|
4631447 |
IREB converter to AC pulses
A device for converting the kinetic energy of an intense relativistic electron beam (IREB) into trains of multi-gigawatt AC electrical pulses comprising a foilless diode for generating an IREB and...
|
|
|
4621218 |
Transverse field interaction multibeam amplifier
A transverse field interaction multi-beam amplifier device comprising a structure having, for example, a plurality of discrete cathodes cylindrically located in succession along a central axis of...
|
|
|
4619041 |
Method for manufacturing coupled cavity travelling wave tubes
A millimeter coupled cavity travelling wave tube has each of its slow wave structures formed of at least one longitudinally extending member having holes made therethrough by a hobbing process,...
|
|
|
4612476 |
Broadband transverse field interaction continuous beam amplifier
A broadband transverse field interaction continuous beam amplifier device mprised of an elongated continuous cathode modulating grid structure, an elongated continuous demodulating grid-collector...
|
|
|
4608520 |
Cathode driven crossed-field amplifier
In a crossed-field amplifier tube, an input section of slow-wave circuit is part of the cathode electrode. An output section of slow-wave circuit is part of the anode electrode. The anode circuit...
|
|
|
4585965 |
Radio electric wave generator for ultra-high frequencies
A generator is provided based on an interaction of the cyclotronic type between an electron beam propagating between an electron gun and a collector and a high frequency electromagnetic field in a...
|
|
|
4572985 |
Traveling wave tube comprising a sleeve cut with grooves and its manufacturing process
A helix-type delay line borne by a conical surface. The internal surface of a sleeve has grooves into which are inserted dielectric supports of constant height that are affixed to the helix-type...
|
|
|
4571726 |
High performance orotron utilizing a dense electron beam
A method and apparatus for increasing the power output and efficiency of an orotron generating near millimeter wavelength radiation. In accordance with a theory of orotron operation described...
|
|
|
4567401 |
Wide-band distributed rf coupler
A wide-band distributed coupler for coupling rf energy from an input waveguide into a tapered interaction waveguide in a traveling-wave amplifier comprising a plurality of channel filters...
|