(under subclass 825) Subject matter together with structure including ground or structure most closely associated with or simulating ground, and such structure being connected to the terminal of the signal receiver or source opposing the active antenna terminal (i.e., having the signal receiver or source interposed between the active antenna and this structure), for establishing a reference potential level for operating the active antenna.
(1) Note. Antennas designated as ground plane, steering wheel, drooping ground plane, skirt or cone, and flat circular ground plane antennas are typical of the patents classified in this and the indented subclass, it being understood that the length of the active antenna must be set forth as specified in the definition of subclass 825, above. Sometimes structure identical with grounding structure defined in this subclass is designated merely as a shield decoupling the antenna from its transmission line, and is classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
834+, for antennas with parasitic reflectors.
841+, for antennas with electrical shields.
846+, for antennas in general with grounding structure including counterpoises.
905, for antennas combined with a transmission line including shields.
