US PATENT SUBCLASS 343 / 826
.~.~ Plural


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}
826.~.~ Plural {1}
827  DF  .~.~.~> Collinear arrangement


DEFINITION

Classification: 343/826

(under subclass 825) Subject matter including a plurality of physically separate linear, radiating type conductors, at least one of the conductors having a length as recited in subclass 825.

(1) Note. A first linear conductor with a second such conductor extending therefrom as a branch is not within the above definition, since the conductors are not separate as the definition requires. See subclass 843 for such subject matter if an appreciable wave length dimension is recited.

(2) Note. The linear conductors are considered separate when they are isolated in space, or when nonradiating means or noncollecting means couple the linear conductors.

SEE OR SEARCH THIS CLASS, SUBCLASS:

731+, and particularly subclass 737 for traveling wave type antennas involving a plurality of linear antennas of an appreciable electrical length.

739+, for antennas with a terminating resistance, which may involve a plurality of linear sections of appreciable wave length dimensions.

741+, for high frequency loop type antennas, which may involve a plurality of linear type sections of appreciable wave length dimensions. 790+, for sleeve type antennas, which may involve a plurality of linear sections.

793+, for center-fed doublet type antennas.

824, for planar type high frequency arrays.

843, for antennas in general having an appreciable wave length dimension.

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

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