Patents
Sitemap › H01 - Basic electric elements › H01J - Electric discharge tubes or discharge lamps › H01J 25 - Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
Patents for H01J 25 - Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons (1,999)
04/2001
04/25/2001CN1292928A M-type microwave device
04/11/2001CN1290955A Heat-storage travelling wave tube
04/04/2001EP1047099A4 Magnetron
03/2001
03/29/2001WO2000072413A3 Miniaturized terahertz radiation source
03/28/2001EP1054430A4 M-type microwave device
03/28/2001CN1289141A Equalizer ring in magneltron
03/08/2001WO2001016051A1 Joining of cvd diamond bodies to metal structures
03/08/2001CA2383325A1 Joining of cvd diamond bodies to metal structures
03/07/2001CN1062976C Electronic beam tube
02/2001
02/20/2001US6191651 Inductive output amplifier output cavity structure
01/2001
01/25/2001WO2001006532A1 Multiple beam regenerating amplifier with electromagnetic oscillations
01/17/2001EP1068627A1 Inductive output amplifier output cavity structure
12/2000
12/27/2000CN1059981C Electron beam tubes
12/27/2000CN1059980C Electron beam tube arrangement
11/2000
11/30/2000WO2000072413A2 Miniaturized terahertz radiation source
11/30/2000DE10006361A1 Miniaturized terahertz radiation source, has element such as field emitter, electrostatic lens, beam deflector, metal grid and second anode mounted on semiconducting chip by nanolithography
11/22/2000EP1054430A1 M-type microwave device
10/2000
10/26/2000WO2000039832A3 Multiband travelling wave tube of reduced length capable of high power functioning
10/25/2000EP1047099A1 Magnetron
10/17/2000US6133786 Low impedance grid-anode interaction region for an inductive output amplifier
10/04/2000CN1268765A Electron-beam tube
09/2000
09/20/2000EP1037307A2 Planar radiation oscillator apparatus
09/14/2000WO2000054305A1 Laser-assisted field emission microwave signal generator
09/13/2000EP1034556A1 Electron beam tubes
08/2000
08/23/2000EP1030341A1 Radio frequency generator with very high power
08/23/2000CN1055780C Electron beam tubes
08/16/2000CA2298321A1 Very high power radio frequency generator
08/02/2000EP1024517A1 Electron beam tubes
07/2000
07/26/2000EP1022764A1 Article comprising enhanced nanotube emitter structure and process for fabricating article
07/26/2000EP1022763A1 Article comprising aligned, truncated carbon nanotubes and process for fabricating article
07/26/2000CA2296831A1 Electron beam tubes
07/25/2000CA2295290A1 Article comprising aligned, truncated carbon nanotubes and process for fabricating article
07/25/2000CA2294656A1 Article comprising enhanced nanotube emitter structure and process for fabricating article
07/06/2000WO2000039832A2 Multiband travelling wave tube of reduced length capable of high power functioning
07/04/2000US6084353 Coaxial inductive output tube having an annular output cavity
06/2000
06/21/2000CN1053762C Linear electron beam tube arrangements
06/20/2000US6078141 Magnetron with improved vanes
06/15/2000WO2000034976A1 Crossed-field amplifier with multipactor suppression
06/07/2000EP0739492B1 High frequency scan converter
05/2000
05/30/2000CA2026111C Amplifier or oscillator device for generating microwaves
05/25/2000WO2000030145A1 Low-power wide-bandwidth klystron
05/25/2000WO2000030144A1 Multiple beam electronic tube with minimal electron interception
05/17/2000CN1052559C Fixing device for antenna feed line of magnetron
05/16/2000US6064154 Magnetron tuning using plasmas
04/2000
04/11/2000US6049249 TWT with mismatched section for controlled gain variation with frequency
04/04/2000USH1847 Magnicon amplifier operated at the second harmonic of the cyclotron frequency
03/2000
03/07/2000US6034572 Magnetically insulated line oscillator microwave pulse generator
02/2000
02/24/2000DE19818144C1 Progressive field tube arrangement for high power microwave amplifiers, especially in satellites, has linearizing circuit/tube unit with circuit held at lower temperature than tube wall by active cooling
01/2000
01/19/2000CN1048580C Magnetron for microwave oven
01/13/2000WO2000002226A1 Multibeam electronic tube with magnetic field for correcting beam trajectory
12/1999
12/21/1999US6005347 Cathode for a magnetron having primary and secondary electron emitters
12/01/1999CN1237079A Energy switch for axis-coupled standing wave accelerator tube
11/1999
11/23/1999US5990621 Electron beam tubes including ceramic material for realizing rf chokes
11/11/1999DE19819136A1 Abstimmbare elektromagnetische Strahlungsquelle Tunable source of electromagnetic radiation
11/03/1999EP0954009A2 Tunable electromagnetic radiation source
10/1999
10/14/1999WO1999052123A1 Inductive output amplifier output cavity structure
10/06/1999EP0948024A2 Low impedance grid-anode interaction region for an inductive output amplifier
09/1999
09/28/1999US5959406 Traveling wave tube with expanding resilient support elements
08/1999
08/24/1999US5942852 Efficient, highly linear traveling wave tube using collector with high backstreaming current under saturated drive
08/03/1999US5932972 Electron gun for a multiple beam klystron
08/03/1999US5932971 Optimally designed traveling wave tube for operation backed off from saturation
07/1999
07/21/1999CN1223454A Magnetrons
07/15/1999WO1999035663A1 Magnetron
07/15/1999WO1999035662A1 M-type microwave device
06/1999
06/22/1999US5914067 Microwave oven equipped with a structurally simple microwave generating apparatus
06/10/1999WO1999028943A1 Electron beam tubes
06/02/1999CN2322258Y 微波发生器 Microwave generator
05/1999
05/12/1999EP0915494A2 Magnetron
05/12/1999CN1216392A Magnetron with improved vanes
05/07/1999CA2252327A1 Magnetrons
04/1999
04/13/1999US5894199 Tertiary field tuning of positive anode magnetron
03/1999
03/31/1999CN1042769C High voltage feed-through ceramic capacitor
03/16/1999US5883369 Structurally simple apparatus for generating a microwave frequency energy
03/16/1999US5883368 Microwave frequency energy generating apparatus provided with a voltage converting means
03/16/1999US5883367 Microwave oven equipped with a structurally simple apparatus for generating a microwave frequency energy
03/10/1999CN1210225A Microwave oven equipped with microwave generating apparatus designed to reduce secondary electron emission
03/10/1999CN1210224A Microwave oven equipped with structurally simple microwave generating apparatus
03/03/1999EP0667033B1 Method of increasing and/or ensuring the efficiency of a gyrotron, and a gyrotron designed to carry out the method
02/1999
02/23/1999US5874806 In a crossed-field amplifier
02/10/1999CN1207569A Structurally simple apparatus for generating microwave frequency energy
02/10/1999CN1207472A Microwave oven equipped with structurally simple apparatus for generating microwave frequency energy
02/10/1999CN1207471A Microwave frequency energy generating apparatus provided with voltage converting means
01/1999
01/31/1999CA2224965A1 Microwave frequency energy generating apparatus provided with a voltage converting means
01/05/1999USH1771 Coupled cavity gyrotron-traveling-wave-tube amplifier
12/1998
12/23/1998CN1202720A Magnetron
12/15/1998US5850074 Microwave oven equipped with a microwave generating apparatus designed to reduce secondary electron emission
12/09/1998EP0883154A1 Efficient, highly linear traveling wave tube using collector with high backstreaming current under saturated drive
12/09/1998EP0883153A1 Optimally designed traveling wave tube for operation backed off from saturation
12/09/1998EP0883152A2 Coaxial inductive output tube
12/02/1998CN1200460A Device for measuring temp. of magnetron for microwave oven
11/1998
11/24/1998US5841114 Microwave oven equipped with a microwave output controlling apparatus
11/03/1998USH1758 Microwave amplifier having cross-polarized cavities
10/1998
10/13/1998US5821693 Electron beam tubes having a unitary envelope having stepped inner surface
10/06/1998US5818170 Gyrotron system having adjustable flux density
09/1998
09/15/1998CA2071099C Gyrotron apparatus having vibration absorbing means
09/02/1998EP0862198A2 A plate-type magnetron
09/02/1998CN1192036A Plate-type magnetron
08/1998
08/25/1998US5798613 Magnetron with ten anode vanes operating at 1250-1500 W
07/1998
07/14/1998US5780969 Gyrotron apparatus including reflecting cylinders which provide undesired wave absorption
07/01/1998EP0764339A4 HOLLOW BEAM ELECTRON TUBE HAVING TM 0x0? RESONATORS, WHERE x IS GREATER THAN 1
1 ... 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20