IPC Subgroup
H01Q 3/22 varying the orientation in accordance with variation of frequency of radiated wave
Introduced: September 1968
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 orientation in accordance with variation of frequency of radiated wave
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ANTENNAS, i.e. RADIO AERIALS
Scope Notes
Glossary: Beam scanning controlling the direction of the radiated beam (or, in the case of a receiving antenna, the direction of greatest sensitivity) as a function of operating frequency. It should be noted that, in a phased array without phase shifters, beam direction will inevitably change during the transmission of a frequency-hopping signal.