DEVICE FOR ACTIVE CONTROL BY REFLECTED RADIO EMISSION Russian patent published in 2017 - IPC H01Q17/00 

FIELD: radio engineering, communication.

SUBSTANCE: device is a set of electrical circuits in an alternating electromagnetic field, made in the form of flat electrical conductors located in layers, each of which is closed at its ends through control devices with active resistance, electrical capacitance and wave dimensions of circuits that change their absorption, resonance tuning frequency and wave dimensions, respectively. Each electrical circuit is an elementary antenna designed to receive electromagnetic waves (EMW) and their further controlled absorption. The control signals of the device allow modulating the amplitude, spectrum, phase and polarization of the reflected EMW.

EFFECT: electric control of the electromagnetic wave absorption independently on different sections of the protected surface of objects, control of the directional pattern and polarization of reflected electromagnetic waves, modulation and fragmentation of reflected signals.

18 cl, 14 dwg