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Class Information
Number: 330/45
Name: Amplifiers > With electron beam tube amplifying device > Having electrode coupled to cavity resonator
Description: Subject matter wherein at least one electrode is coupled to a cavity resonator.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459855 |
Low-spurious-radiation microwave tube |
Dec. 2, 2008 |
| 7129504 |
Method and apparatus for generation and frequency tuning of modulated, high current electron beams |
Oct. 31, 2006 |
| 6998783 |
Inductive output tube having a broadband impedance circuit |
Feb. 14, 2006 |
| 6879208 |
Multi-stage collector having electrode stages isolated by a distributed bypass capacitor |
Apr. 12, 2005 |
| 6838829 |
Depressed collector for electron beams |
Jan. 4, 2005 |
| 6611719 |
Cancer thermotherapy |
Aug. 26, 2003 |
| 6380803 |
Linear amplifier having discrete resonant circuit elements and providing near-constant efficiency across a wide range of output power |
Apr. 30, 2002 |
| 6300715 |
Very high power radiofrequency generator |
Oct. 9, 2001 |
| 6191651 |
Inductive output amplifier output cavity structure |
Feb. 20, 2001 |
| 6163112 |
Device for quick frequency tuning of a microwave tube using a direct sensing means |
Dec. 19, 2000 |
| RE36987 |
Compensating for non-linear effects in signal processing with active devices |
Dec. 12, 2000 |
| 6133786 |
Low impedance grid-anode interaction region for an inductive output amplifier |
Oct. 17, 2000 |
| H1847 |
Magnicon amplifier operated at the second harmonic of the cyclotron frequency |
Apr. 4, 2000 |
| 5990621 |
Electron beam tubes including ceramic material for realizing rf chokes |
Nov. 23, 1999 |
| H1771 |
Coupled cavity gyrotron-traveling-wave-tube amplifier |
Jan. 5, 1999 |
| 5773934 |
Resistive wall klystron amplifier having grounded drift tube |
Jun. 30, 1998 |
| 5726533 |
Cathode ray tube having an input resonator cavity |
Mar. 10, 1998 |
| 5698949 |
Hollow beam electron tube having TM.sub.0x0 resonators, where X is greater than 1 |
Dec. 16, 1997 |
| 5691667 |
RF radiation absorbing material disposed between the cathode and anode of an electron beam tube |
Nov. 25, 1997 |
| 5682084 |
Grid electron tube with a folded cavity structure |
Oct. 28, 1997 |
| 5650751 |
Inductive output tube with multistage depressed collector electrodes providing a near-constant efficiency |
Jul. 22, 1997 |
| 5606221 |
Electron beam tubes having a resonant cavity with high frequency absorbing material |
Feb. 25, 1997 |
| 5581154 |
Resistive wall klystron amplifier |
Dec. 3, 1996 |
| 5581153 |
Electron beam tube having resonant cavity circuit with selectively adjustable coupling arrangement |
Dec. 3, 1996 |
| 5548245 |
Electron beam tube arrangements having the input cavity comprised of electrically internal and external body portions |
Aug. 20, 1996 |
| 5536992 |
Linear electron beam tubes arrangements |
Jul. 16, 1996 |
| 5534820 |
Compensating for non-linear effects in signal processing with active devices |
Jul. 9, 1996 |
| 5521551 |
Method for suppressing second and higher harmonic power generation in klystrons |
May. 28, 1996 |
| 5402085 |
Process and device for compensation of phase instabilities of the wave amplified by a microwave tube |
Mar. 28, 1995 |
| 5386177 |
Plasma klystron amplifier |
Jan. 31, 1995 |
| 5355093 |
Compact microwave and millimeter wave amplifier |
Oct. 11, 1994 |
| 5304942 |
Extended interaction output circuit for a broad band relativistic klystron |
Apr. 19, 1994 |
| 5283534 |
High frequency amplifying apparatus with a collector which has a periodic amplitude variable longitudinal magnetic field therein |
Feb. 1, 1994 |
| 5281923 |
Amplifying arrangements which modulate an electron beam |
Jan. 25, 1994 |
| 5239272 |
Electron beam tube arrangements having primary and secondary output cavities |
Aug. 24, 1993 |
| 5162747 |
Velocity modulation microwave amplifier with multiple band interaction structures |
Nov. 10, 1992 |
| 5132638 |
High power klystron amplifier |
Jul. 21, 1992 |
| 5124664 |
Field emission devices |
Jun. 23, 1992 |
| 5065109 |
Electropneumatic band selector |
Nov. 12, 1991 |
| 4931695 |
High performance extended interaction output circuit |
Jun. 5, 1990 |
| 4908549 |
Motor-driven device for preadjusted frequency tunings for a klystron |
Mar. 13, 1990 |
| 4820996 |
Amplifying arrangements |
Apr. 11, 1989 |
| 4733192 |
Amplifying arrangements including a klystron having a power transfer characteristic which is substantially the same over its entire passband |
Mar. 22, 1988 |
| 4700146 |
Automatic tuning of cavity klystron using sampled RF output |
Oct. 13, 1987 |
| 4591799 |
High power klystron amplifier for supplying a variable load |
May. 27, 1986 |
| 4571525 |
Resonant coaxial cavities for a grid vacuum tube |
Feb. 18, 1986 |
| 4546325 |
Fast-acting tuner for multiple-channel klystrons |
Oct. 8, 1985 |
| 4527129 |
Klystron tuning control system |
Jul. 2, 1985 |
| 4485349 |
Stabilized microwave power amplifier system |
Nov. 27, 1984 |
| 4216409 |
Multi-cavity klystron device |
Aug. 5, 1980 |
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