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Class Information
Number: 330/56
Name: Amplifiers > With distributed parameter-type coupling means > Waveguide, cavity, or concentric line resonator
Description: Subject matter wherein the distributed parameter wave transmission means is of the wave guide, cavity concentric line type and is resonant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7312673 |
Radial power divider/combiner |
Dec. 25, 2007 |
| 7113056 |
Radial power divider/combiner |
Sep. 26, 2006 |
| 6982613 |
Radial power divider/combiner |
Jan. 3, 2006 |
| 6611719 |
Cancer thermotherapy |
Aug. 26, 2003 |
| 6414551 |
Multi-space structure amplifier |
Jul. 2, 2002 |
| 5698986 |
Cigarette density monitor |
Dec. 16, 1997 |
| 5497050 |
Active RF cavity including a plurality of solid state transistors |
Mar. 5, 1996 |
| 5471164 |
Microwave amplifier linearizer |
Nov. 28, 1995 |
| 5389890 |
Combiners for R.F. power amplifiers |
Feb. 14, 1995 |
| 5339043 |
Wave propagation signal transmission device and applications of the device to the amplification of such signals |
Aug. 16, 1994 |
| 5159290 |
Composite wave closure means for microwave containing regions |
Oct. 27, 1992 |
| 4918031 |
Processes depending on plasma generation using a helical resonator |
Apr. 17, 1990 |
| 4868889 |
Microwave absorber attenuator for linear SSPA power control |
Sep. 19, 1989 |
| 4853650 |
Symmetric waveguide junction combiner |
Aug. 1, 1989 |
| 4780685 |
Composite power amplifier with redundancy |
Oct. 25, 1988 |
| 4737738 |
Extended interaction device tuned by movable delay line structure |
Apr. 12, 1988 |
| 4716382 |
Microwave amplifying apparatus |
Dec. 29, 1987 |
| 4707668 |
Method and apparatus for transferring and injecting rf energy from a generator to a resonant load |
Nov. 17, 1987 |
| 4700108 |
Cavity system for a particle beam accelerator |
Oct. 13, 1987 |
| 4700145 |
Radially fed microwave signal combiner/distributor apparatus |
Oct. 13, 1987 |
| 4683440 |
High-frequency amplifier device |
Jul. 28, 1987 |
| 4656438 |
Power combining cavity |
Apr. 7, 1987 |
| 4623849 |
Broadband high power IMPATT amplifier circuit |
Nov. 18, 1986 |
| 4619001 |
Tuning systems on dielectric substrates |
Oct. 21, 1986 |
| 4571555 |
Re-entrant coaxial cavity power combiner |
Feb. 18, 1986 |
| 4517527 |
Waveguide amplifier circuit |
May. 14, 1985 |
| 4514700 |
Output amplifier for a transmitting tube |
Apr. 30, 1985 |
| 4494087 |
Combiner probe providing power flatness and wide locking bandwidth |
Jan. 15, 1985 |
| 4471316 |
Electric oscillation generator |
Sep. 11, 1984 |
| 4467472 |
Diplexer for the separation of a signal and of a supply current |
Aug. 21, 1984 |
| 4453139 |
Frequency offset multiple cavity power combiner |
Jun. 5, 1984 |
| 4429286 |
Divider/combiner amplifier |
Jan. 31, 1984 |
| 4424496 |
Divider/combiner amplifier |
Jan. 3, 1984 |
| 4415867 |
Hybrid coupled microstrip amplifier |
Nov. 15, 1983 |
| 4368092 |
Apparatus for the etching for semiconductor devices |
Jan. 11, 1983 |
| 4363000 |
Power amplifier tank circuit |
Dec. 7, 1982 |
| 4355286 |
Resonant circuit arrangement |
Oct. 19, 1982 |
| 4334203 |
Second harmonic suppressor for power amplifier tank circuit |
Jun. 8, 1982 |
| 4327330 |
High power amplification arrangement |
Apr. 27, 1982 |
| 4309672 |
Negative resistance oscillator/amplifier accumulator circuit |
Jan. 5, 1982 |
| 4283685 |
Waveguide-to-cylindrical array transition |
Aug. 11, 1981 |
| 4282491 |
Amplifier with severed transmission lines |
Aug. 4, 1981 |
| 4270099 |
Circuit arrangement for generating and stably amplifying broadband rf signals |
May. 26, 1981 |
| 4238747 |
Mode filter apparatus |
Dec. 9, 1980 |
| 4208633 |
Current supply branching arrangement for separation of signal and supply currents |
Jun. 17, 1980 |
| 4189683 |
Solid state diode amplifier |
Feb. 19, 1980 |
| 4187471 |
Bias circuit |
Feb. 5, 1980 |
| 4184123 |
Double-tuned output circuit for high power devices using coaxial cavity resonators |
Jan. 15, 1980 |
| 4175257 |
Modular microwave power combiner |
Nov. 20, 1979 |
| 4170761 |
Remotely powered intermediate amplifier for communications transmission |
Oct. 9, 1979 |
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