for varying relative position of primary active element and a reflecting device

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 > 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

Classification Context

Section:: ELECTRICITY
Class:: ELECTRIC ELEMENTS
Subclass:: ANTENNAS, i.e. RADIO AERIALS

2 direct subcodes

Child Classifications

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H01Q 3/18 wherein the primary active element is movable and the reflecting device is fixed
H01Q 3/2 wherein the primary active element is fixed and the reflecting device is movable