(under subclass 700) Subject matter wherein the claims recite the active antenna or portion, section, or part thereof as having a dimension which is a fractional part or multiple (including unity) of the operating wave length of the antenna.
(1) Note. Subject matter involving spiral, helical and sinuous types of antennas, where such antennas are claimed to have a particular operating wave length dimension, are classified herein. An example of such subject matter is a helix having a pitch or circumference which is an appreciable portion of a wave length. This is the residual subclass for antennas having a particular wave length dimension. Special types of antennas, which may also involve a particular operating wave length for the active antenna, are classified with their particular type of antenna, as for example, subclasses 772+ for wave guide type antennas, subclasses 793+ for balanced doublets, and subclasses 825+ for linear type
antennas of a particular electrical length.
SEE OR SEARCH THIS CLASS, SUBCLASS:
723, for single linear antennas having an adjustable length for tuning.
741+, for high frequency loops having an appreciable wave length dimension.
749+, for antennas of a particular wave length dimension with lumped reactance for loading. 772+, for wave guide type antennas which may have an appreciable wave length dimension.
793+, for balanced doublets having an appreciable wave length dimension.
825+, for fractional, multiple or full wave linear type antennas.
