• All sections
• H - Electricity
• H01Q - Antennas, i.e. radio aerials
• H01Q 3/20 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is fixed and the reflecting device is movable

Patent holdings for IPC class H01Q 3/20

Total number of patents in this class: 199

10-year publication summary

Principal owners for this class