US PATENT SUBCLASS 330 / 56
.~ Waveguide, cavity, or concentric line resonator

Current as of: June, 1999
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330 /   HD   AMPLIFIERS

53  DF  WITH DISTRIBUTED PARAMETER-TYPE COUPLING MEANS {4}
56.~ Waveguide, cavity, or concentric line resonator

DEFINITION

Classification: 330/56

(under subclass 53) Subject matter wherein the distributed parameter wave transmission means is of the wave guide, cavity concentric line type and is resonant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

45, for electron beam tube amplifying device coupled to a cavity resonator.

94, and 109, for signal feedback amplifiers having frequency responsive means in the feedback path.

302+, for semiconductor amplifiers having frequency responsive in the signal transmission path.

SEE OR SEARCH CLASS

331, Oscillators, 83, for multicavity beam tube oscillators (Klystrons).

333, Wave Transmission Lines and Networks,

219+, for distributed parameter type resonators. See the note and search notes to this subclass.