(under subclass 793) Subject matter wherein at least three doublets have their midpoints arranged on the circumference of a circle and equally spaced around this circumference; or wherein three doublets so arranged are disclosed in the specifications, and it is claimed that a plurality of doublets have a circumferential arrangement, or are in circular array, or are in cylindrical formation, or equivalent terminology; or wherein at least two doublets are so arranged and have their arms so curved that all the arms lie in a circle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
741+, for high frequency type loops.
796, for helically or angularly staggered plural dipoles.
797+, for plural crossed doublets.
810+, for plural doublets.
824, for planar arrays of linear antennas. 826+, for plural multiple, fractional or full wave linear type antennas.
835+, for plural active antennas with parasitic reflectors.
844, for plural antennas spaced a fractional or full wave length apart.
853+, for plural antennas with a coupling network or impedance in the leadin.
879, for supports for plural separate antennas.
893, for plural antennas in general.
SEE OR SEARCH CLASS
342, Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation),
385+, for beacons which may involve circumferentially arranged doublets.
