Patents
Sitemap › H01 - Basic electric elements › H01J - Electric discharge tubes or discharge lamps › H01J 23 - Details of transit-time tubes of the types covered by group
Patents for H01J 23 - Details of transit-time tubes of the types covered by group (3,921)
12/1984
12/27/1984EP0129314A2 Bonding metal to ceramic
12/25/1984US4490648 Stabilized radio frequency quadrupole
12/18/1984US4489254 Magnetron
12/11/1984US4488086 Method for the manufacture of a device ensuring an electrical and thermal contact between a plurality of metal surfaces, device obtained by this method, and use of said device
11/1984
11/27/1984US4485330 Magnetron
11/27/1984CA1178669A1 Broadband-high power microwave window assembly
11/21/1984EP0125450A2 Microwave cavity tuner
11/14/1984EP0125218A2 Linearized traveling wave amplifier with hard limiter characteristics
11/14/1984EP0125167A1 High-power amplifying klystron for feeding a variable load
11/13/1984US4482870 Magnetron with magnetic yoke having annular projection
11/13/1984US4482843 Gyrotron device
11/07/1984EP0124396A1 Electron beam injection device for a microwave generator
11/07/1984EP0124395A1 Electron gun for microwave generators
11/06/1984US4481444 Traveling wave tubes having backward wave suppressor devices
11/06/1984CA1177578A1 Traveling wave tubes having backward wave suppressor
10/1984
10/30/1984US4480235 Coaxial magnetron with improved starting
10/30/1984US4480210 Gridded electron power tube
10/24/1984EP0122834A1 Microwave propagation-mode transformer
10/17/1984EP0122186A1 Microwave generator
10/10/1984EP0121465A1 Grooved travelling-wave tube sleeve and its manufacturing process
10/10/1984EP0121189A1 Feedback circuit regulating the control voltage depending on the temperature in a travelling wave tube
09/1984
09/26/1984EP0119902A1 Microwave cavity resonator, especially for electromagnetic energy generators
09/26/1984EP0119362A1 Coaxial resonators for grid tubes
09/25/1984CA1175144A1 Collector-output for hollow beam electron tubes
09/11/1984US4471267 Grid structure for certain plural mode electron guns
09/11/1984US4471266 Delay line for a traveling-wave tube cooled by heat pipes and a traveling-wave tube comprising a delay line of this type
08/1984
08/21/1984CA1173120A1 Extended interaction microwave oscillator
08/14/1984US4465988 Slow wave circuit with shaped dielectric substrate
08/14/1984US4465987 Ring-bar slow wave structure and fabrication method
08/14/1984US4465984 Frequency selective side absorber for a meander line
08/08/1984EP0115042A1 Periodic permanent-magnet focusing system for a travelling-wave tube
07/1984
07/25/1984EP0113907A1 Layer preventing disturbances created by secondary-electron emission, and manufacture of such a layer
07/17/1984US4460846 Collector-output for hollow beam electron tubes
07/10/1984US4459563 Magnetron unit with choke structure for reducing higher harmonics in microwave output
07/10/1984US4459562 Dielectric based submillimeter backward wave oscillator circuit
07/04/1984EP0112373A1 Buffer for an electron beam collector.
07/03/1984US4458223 Microwave window assembly having cooling means
06/1984
06/27/1984EP0111835A2 Klystron tuning control system
06/26/1984US4456851 Electron tube having a low impedance reduced stress anode structure
06/26/1984CA1169966A1 Ladder supported ring bar circuit
06/19/1984US4455507 Double wedge termination device for coupled cavity traveling wave tubes
06/13/1984EP0110135A1 Method of manufactoring a travelling-wave tube with a delay line supported by dielectric rods
05/1984
05/29/1984CA1168361A1 Microwave delay line incorporating a conductor with a variable cross-section for a travelling-wave tube
05/15/1984CA1167568A1 In-band resonant loss in twt's
05/01/1984US4445873 Method of producing magnetrons
04/1984
04/24/1984US4445070 Electron gun for producing spiral electron beams and gyrotron devices including same
04/10/1984US4442417 Uniform field solenoid magnet with openings
03/1984
03/27/1984US4439746 Extended interaction microwave oscillator including a sucession of vanes with orifices
03/20/1984CA1164091A1 Traveling wave tube with frequency variable sever length
03/07/1984EP0102288A1 Travelling wave tube with suppression means for parasitic oscillation
03/07/1984EP0102286A1 Ring and ridge or bar and ridge-type slow-wave structure
02/1984
02/28/1984US4434387 DC Isolated RF transition for cathode-driven crossed-field amplifier
02/28/1984CA1162983A1 Power supply for magnetron and the like loads
02/22/1984EP0100996A1 Manufacturing method of a helical delay line for travelling-wave tubes
02/21/1984US4433270 Reversible periodic magnetic focusing system
02/14/1984US4431944 Delay line having coupled cavities for a traveling-wave tube and a traveling-wave tube equipped with said line
01/1984
01/31/1984US4429255 Klystron
01/31/1984US4429250 Direct heating cathode for high frequency thermionic tube
01/19/1984WO1984000249A1 Buffer for an electron beam collector
01/17/1984US4426601 Magnetron
01/03/1984US4424044 Method of fabricating cathode electrodes
12/1983
12/20/1983US4422012 Ladder supported ring bar circuit
12/13/1983US4420710 Co-axial magnetrons
12/06/1983US4419606 Magnetron
11/1983
11/15/1983CA1157153A1 Traveling-wave tube utilizing vacuum housing as an rf circuit
11/09/1983EP0093397A1 Helical delay line for travelling wave tubes, and method of manufacturing the same
11/08/1983US4414487 Superconducting electron beam generator
11/08/1983US4414486 Coupled cavity type traveling wave tube
11/02/1983EP0092790A1 Klystron unit
11/01/1983US4413208 High gain crossed field amplifier tube and radio transmission system equipped with such a tube
11/01/1983US4413207 Multicavity klystron
10/1983
10/12/1983EP0090958A1 Double wedge termination device for coupled cavity travelling wave tubes
10/11/1983US4409520 Microwave discharge ion source
10/11/1983US4409519 TWT Slow-wave structure assembled from three ladder-like slabs
10/11/1983US4409518 TWT Interaction circuit with broad ladder rungs
10/04/1983CA1154867A1 Helix traveling wave tubes with reduced gain variation
09/1983
09/14/1983EP0088663A1 Focusing solenoid, its application and manufacturing process
09/13/1983US4404494 Travelling wave tube with periodic-permanent magnet focusing system
08/1983
08/30/1983US4401918 Klystron having electrostatic quadrupole focusing arrangement
08/30/1983CA1153113A1 Focusing device with permanent magnets for electron tube and electron tube equipped with such a device
08/16/1983US4399389 Travelling wave tube with coupled cavities and focusing by alternating permanent magnets and amplifying system comprising such a tube
08/09/1983US4398122 Multistage depressed collector for microwave tube
07/1983
07/26/1983US4395657 Magnetron unit with a magnetic field compensating means
07/12/1983US4393328 Hot cathode, its production process and electron tube incorporating such a cathode
07/05/1983US4392080 Means and method for the focusing and acceleration of parallel beams of charged particles
06/1983
06/21/1983US4389594 Device for electronically tuning a power magnetron
06/07/1983US4387323 Permanent magnet structure for linear-beam electron tubes
04/1983
04/26/1983US4381475 Variable coupling resistance delay line for crossed field tube
04/19/1983US4380717 Magnetrons
03/1983
03/29/1983US4378512 Helix type traveling wave tube
03/22/1983US4377770 Microwave delay line incorporating a conductor with a variable cross-section for a travelling-wave tube
03/16/1983EP0074173A1 Improvements in or relating to magnetrons
03/15/1983US4376908 Impedance tapered dematron
03/15/1983CA1142992A1 Electron discharge tube cooling system
03/01/1983CA1142258A1 Zero-bias gridded gun
02/1983
02/22/1983US4375044 Low thermal stress electrode
02/01/1983US4371854 Broadband high-power microwave window assembly
02/01/1983US4371852 Variable pitch delay line for travelling-wave tube and travelling-wave tube equipped with such a line
02/01/1983US4371848 Magnetron having a filter on the output probe
01/1983
01/25/1983US4370596 Slow-wave filter for electron discharge device
1 ... 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40