US PATENT SUBCLASS 343 / 831
.~.~ Stub type


Current as of: June, 1999
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343 /   HD   COMMUNICATIONS: RADIO WAVE ANTENNAS

700 R  DF  ANTENNAS {58}
825  DF  .~ Fractional, multiple, or full wave length linear type {4}
831.~.~ Stub type


DEFINITION

Classification: 343/831

(under subclass 825) Subject matter wherein the linear conductor is thickened or enlarged in cross section to produce such shapes as cylindrical, conical, diamond, double diamond, and spheroidal.

(1) Note. Usually the antennas are a quarter wave length long; and the thickening or enlarging is for the purpose of obtaining a wide band characteristic over a frequency range, any resulting physical strengthening or streamlining of the antennas being incidental.

SEE OR SEARCH THIS CLASS, SUBCLASS:

790, for sleeve type antennas.

807, for dipoles having a stub configuration.

826+, for plural stub type antennas.

829+, for stub antennas with grounding structure, including counterpoises.