IPC Subgroup
H01Q 3/01 varying the shape of the antenna or antenna system
Introduced: January 1980
Last revised: January 2006
Full Title
Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system > varying the shape of the antenna or antenna system
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ANTENNAS, i.e. RADIO AERIALS