IPC Subgroup
H01Q 21/12 Parallel arrangements of substantially straight elongated conductive units
Introduced: September 1968
Last revised: January 2006
Full Title
Antenna arrays or systems > Arrays of individually energised antenna units similarly polarised and spaced apart > the units being spaced along, or adjacent to, a rectilinear path > Parallel arrangements of substantially straight elongated conductive units
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ANTENNAS, i.e. RADIO AERIALS
1 direct subcode
Child Classifications
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- H01Q 21/14 Adcock antennas