DIFF Subgroup
H01Q 19/24 the primary active element being centre-fed and substantially straight, e.g. H-antenna
Introduced: September 1968
Full Title
Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic > using a secondary device in the form of a single substantially straight conductive element > the primary active element being centre-fed and substantially straight, e.g. H-antenna
No child classifications to compare. This is a leaf node in both IPC and CPC.