(under subclass 793) Subject matter wherein each mass constitutes an elongated portion which is tapered, or significantly thickened or enlarged over at least a portion of its length, such as a thick elongated rod, cylinder, or cone, for impedance matching, broadbanding, or presenting a larger area for wave energy radiation or collection.
(1) Note. The elongated portion may be a single rod, or a plurality of rods or wires forming substantially a single conductive mass and enclosing a volume, as opposed to the sheet or screen type mass of subclass 795, which defines a plane. Such wires or rods for classification in subclass 807, would have the ends remote from the feed points electrically connected, as by a conductive loop, or being joined at a common point, as opposed to subclass 808 wherein the diverging rods are electrically free at their outer ends.
SEE OR SEARCH THIS CLASS, SUBCLASS:
790+, for sleeve type antennas.
795, for sheet or screen type doublet antennas. See also (1) Note, above.
808, for doublets wherein the plural rods form a V. See also (1) Note, above.
831, for stub type fractional, full wave, or multiple wave linear type antennas. 874+, for mast or tower type antennas.
895, for spiral or helical type antennas.
896+, for antennas wherein rods or wires form a cage or hollow post.
897, for mesh, woven, braided or multiple strip type antennas.
898, for hollow metallic body type antennas.
899, for antennas having area increasing means, e.g., spiniferous or metal ball on top.
