US PATENT SUBCLASS 343 / 776
.~.~ Plural

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

700 R  DF  ANTENNAS {58}
772  DF  .~ Wave guide type (e.g., horn) {8}
776.~.~ Plural {3}
777  DF  .~.~.~> With control of individual antenna (e.g., lobe switching or steering)
778  DF  .~.~.~> With phasing
779  DF  .~.~.~> With reflector

DEFINITION

Classification: 343/776

(under subclass 772) Subject matter wherein two or more wave guides are provided at the connection to free space to result in two or more wave guide paths each directly coupled to free space.

(1) Note. The wave guides may be formed as branches from a common guide remote from the free space coupling end, or may be separate and distinct guides independently coupled by non-wave guide structure to their transmitter and/or receiver, or may be merely a divided guide such as a baffled horn with separate wave guide paths existing on each side of the baffle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

773+, for bi-conical horn type antennas.

844, for plural antennas spaced a fractional or full wave length apart.

853+, for coupling networks for plural antennas.

879, for supports for plural separate antennas. 893, and the Search Notes thereunder, for plural antennas in general.