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Class Information
Number: 330/44
Name: Amplifiers > With electron beam tube amplifying device
Description: Subject matter wherein the amplifying device is a vacuum tube provided with means to form the electric space discharge into a restricted beam or ray, usually pencil-like.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7368874 |
Dynamic depressed collector |
May. 6, 2008 |
| 7218053 |
Electron beam tube output arrangement |
May. 15, 2007 |
| 7019601 |
Device for amplifying a high frequency signal |
Mar. 28, 2006 |
| 6909235 |
Power regulator for intermittent use of traveling wave tube amplifiers in communications satellites |
Jun. 21, 2005 |
| 6593579 |
RF modulated electron gun |
Jul. 15, 2003 |
| 6448850 |
Electromagnetic wave amplifier and electromagnetic wave generator |
Sep. 10, 2002 |
| 6359378 |
Amplifier having multilayer carbon-based field emission cathode |
Mar. 19, 2002 |
| 6300715 |
Very high power radiofrequency generator |
Oct. 9, 2001 |
| 6232721 |
Inductive output tube (IOT) amplifier system |
May. 15, 2001 |
| 6191651 |
Inductive output amplifier output cavity structure |
Feb. 20, 2001 |
| 6133786 |
Low impedance grid-anode interaction region for an inductive output amplifier |
Oct. 17, 2000 |
| 6100639 |
Thin diamond electron beam amplifier for amplifying an electron beam and method of producing an amplified electron beam using same |
Aug. 8, 2000 |
| 6005351 |
Flat panel display device using thin diamond electron beam amplifier |
Dec. 21, 1999 |
| H1758 |
Microwave amplifier having cross-polarized cavities |
Nov. 3, 1998 |
| 5767625 |
High frequency vacuum tube with closely spaced cathode and non-emissive grid |
Jun. 16, 1998 |
| 5691667 |
RF radiation absorbing material disposed between the cathode and anode of an electron beam tube |
Nov. 25, 1997 |
| 5592053 |
Diamond target electron beam device |
Jan. 7, 1997 |
| 5536992 |
Linear electron beam tubes arrangements |
Jul. 16, 1996 |
| 5497053 |
Micro-electron deflector |
Mar. 5, 1996 |
| 5164634 |
Electron beam device generating microwave energy via a modulated virtual cathode |
Nov. 17, 1992 |
| 5162747 |
Velocity modulation microwave amplifier with multiple band interaction structures |
Nov. 10, 1992 |
| 5119506 |
Circuit for automatically adjusting the rate of change of amplitude of an output signal over selected input signal amplitude bands |
Jun. 2, 1992 |
| 4949011 |
Klystron with reduced length |
Aug. 14, 1990 |
| 4905086 |
Television transmitter employing klystron with nonlinearity correction circuit |
Feb. 27, 1990 |
| 4894586 |
Crossed-field amplifier bias circuit and method for improved starting |
Jan. 16, 1990 |
| 4887049 |
Solid state space harmonic amplifier |
Dec. 12, 1989 |
| 4820688 |
Traveling wave tube oscillator/amplifier with superconducting RF circuit |
Apr. 11, 1989 |
| 4763043 |
P-N junction semiconductor secondary emission cathode and tube |
Aug. 9, 1988 |
| 4757269 |
Multi-gigawatt high-efficiency RF amplifier |
Jul. 12, 1988 |
| 4674513 |
Active microwave cavity for electron paramagnetic resonance (EPR) apparatus |
Jun. 23, 1987 |
| 4210845 |
Trirotron: triode rotating beam radio frequency amplifier |
Jul. 1, 1980 |
| 3942132 |
Combined electron beam semiconductor modulator and junction laser |
Mar. 2, 1976 |
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