US PATENT SUBCLASS 343 / 802
.~.~ Distributed reactance added to arms


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

700 R  DF  ANTENNAS {58}
793  DF  .~ Balanced doublet - centerfed (e.g., dipole) {17}
802.~.~ Distributed reactance added to arms


DEFINITION

Classification: 343/802

(under subclass 793) Subject matter wherein each conducting mass includes in addition to its own inherent reactance a distributed reactance in series or in shunt with the mass, at least a part of the distributed reactance being spaced on the radiating mass from the antenna lead-in terminals, i.e., the distributed reactance is not physically and electrically entirely disposed between the conducting mass and the antenna lead-in terminals.

(1) Note. This distributed reactance may result from an abrupt change in shape of the conducting mass, or from a portion extending from the main body of the mass such as a branch.

(2) Note. Subject matter wherein the arms of a doublet are merely adjustable in length without any nonuniformity or without any abrupt change in shape with its consequent loading effect is not classified herein, but in subclass 823 below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

744, for high frequency loop type antennas with series reactance in the loop path.

749+, for antennas with lumped reactance for loading. 801, wherein three or more collinear units form a doublet. See also the Notes under subclass 801.

806, for balanced doublets having bent arms.

828, for fractional, multiple, or full wave linear type antennas having a non-uniformity therein for reactive effect.

843, for antennas having an appreciable wave length dimension.

895, for spiral and helical type antennas.

899, for antennas with area increasing means (e.g., spiniferous).