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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:
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Patent Number Title Of Patent Date Issued
8525588 Vacuum electronic device Sep. 3, 2013
7782130 Bowtie deflector cavity for a linear beam device Aug. 24, 2010
7724083 Method and apparatus for Josephson distributed output amplifier May. 25, 2010
7532073 Solid state power amplifier with multi-planar MMIC modules May. 12, 2009
7482894 Radial power divider/combiner using waveguide impedance transformers Jan. 27, 2009
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
4700145 Radially fed microwave signal combiner/distributor apparatus Oct. 13, 1987
4700108 Cavity system for a particle beam accelerator 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

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