ANTENNA Russian patent published in 2013 - IPC H01Q7/00 

FIELD: radio engineering, communication.

SUBSTANCE: antenna is matched with mechanical impedance, a communication channel and can be used as a transmitting antenna. The antenna consists of an electric dipole earthed at the ends or a frame antenna on a canvas which forms the frame of the antenna or an electric dipole earthed at the ends successively worn (threaded) in-phase, a plurality of ferrite magnetic antennae consisting of a short-circuited ferrite core which forms with the canvas of the antenna the primary winding of a current transformer and with a radiator, which is made from a linear ferrite core encircled by a common inductance coil which is the secondary winding of the current transformer, whose ends are connected in parallel to a capacitor for resonance tuning to the frequency of the transmitted signal. To obtain a circular pattern of the antenna, the number of linear ferrite cores can be equal to two and they should be placed at an angle of 90 degrees relative each other. Comparison tests of the disclosed antenna using just five ferrite magnetic antennae worn and connected in-phase on the canvas of a known frame antenna with diameter of 115 mm at frequency of 11 kHz yielded a gain of 32 dB.

EFFECT: high efficiency owing to increase in magnetic induction in the communication channel.

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