US PATENT SUBCLASS 343 / 761
.~.~ Reflector and antenna relatively movable


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

700 R  DF  ANTENNAS {58}
757  DF  .~ With means for moving directive antenna for scanning, sweeping or orienting {6}
761.~.~ Reflector and antenna relatively movable


DEFINITION

Classification: 343/761

(under subclass 757) Subject matter wherein the reflector and active antenna are supported to be relatively movable, together with structure that effects or is peculiarly adapted to effect relative motion between the antenna and reflector element.

(1) Note. Usually the patents in this subclass involve a parabolic reflector and active antenna in an unsymmetrical relationship, which upon rotation produce conical scanning.

(2) Note. The term reflector as used in this subclass includes any parasitic element such as a director.

SEE OR SEARCH THIS CLASS, SUBCLASS:

759, for active antennas and reflectors which may be relatively movable to produce a spiral scan.

839, for antennas with reflectors which are relatively movable for purposes other than scanning sweeping or orienting, such as focusing or changing the beam pattern; or where no means is claimed for moving the antenna and reflector relatively for scanning, sweeping or orienting.