TUNABLE RESONANT ANTENNA WITH MATCHING DEVICE Russian patent published in 2013 - IPC H01Q9/18 

FIELD: radio engineering, communication.

SUBSTANCE: tunable resonant antenna with a matching device, having a matching device in form of a transformer, consisting of a primary winding and a secondary winding and an open core, a radiating vibrator in form of a flat or three-dimensional conducting body connected to the secondary winding and lying in the magnetic field of a matching transformer, characterised by that the matching transformer has a variable transformer ratio, such that the secondary coil of the transformer has a degree of freedom relative the core or the primary coil and a mechanism for manual or automatic movement of the core and (or) coils relative each other and fixation in a chosen position.

EFFECT: high maximum power of the resonant antenna and enabling tuning of its operating frequency in a wide range of radio waves and, as a result, broader functional capabilities of transceiving equipment.

3 cl, 5 dwg