(under subclass 790) Subject matter wherein an active rod, which may be hollow, forms an extension of and is electrically connected to the feed line and is coaxial with the active sleeve.
(1) Note. The active rod and sleeve are often in electrical effect a doublet as defined in subclass 793 below; but are structurally different in that the rod and sleeve are not similar. The rod is usually of a smaller diameter than the sleeve.
SEE OR SEARCH THIS CLASS, SUBCLASS:
725, for plural separate diverse type antennas. See also (3) Note, under subclass 725.
801, for doublet antennas formed of three or more collinear elements.
823, for doublet antennas with telescopically arranged respective arms. See (3) Note under subclass 790, above.
827, with collinear arranged fractional, multiple or full wave length linear type antennas. 830, for linear type antennas with ground planes fed by coaxial lines. See (3) Note under subclass 790, above.
