IPC Subgroup
H01Q 21/06 Arrays of individually energised antenna units similarly polarised and spaced apart
Introduced: September 1968
Last revised: January 2006
Full Title
Antenna arrays or systems > Arrays of individually energised antenna units similarly polarised and spaced apart
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ANTENNAS, i.e. RADIO AERIALS
3 direct subcodes
Child Classifications
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- H01Q 21/08 the units being spaced along, or adjacent to, a rectilinear path
- H01Q 21/2 the units being spaced along, or adjacent to, a curvilinear path
- H01Q 21/22 Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array