METHODS FOR TRANSMISSION AND RECEPTION OF ELECTROMAGNETIC WAVES THROUGH ENVIRONMENT AND DEVICES WHICH IMPLEMENT SAID METHODS Russian patent published in 1999 - IPC

FIELD: radio engineering. SUBSTANCE: method for transmission of electromagnetic wave by means of disclosed device involves generation of electromagnetic wave of frequency ω₁, converting its parameters, passing it through environment, simultaneous generation of additional electromagnetic wave with frequency ω₂, shifting phase of one wave with respect to another one by α₁. Method for reception of electromagnetic waves transmitted through environment involves reception of electromagnetic waves, their conversion, recording and use. Corresponding transmitter has at least one additional source of electromagnetic waves, which may be designed as power divider, oscillator, retransmitter, or another device which emits electromagnetic waves. In addition transmitter has unit for reception of two waves which have passed through environment. The following features provide optimal results: frequency difference between waves to be transmitted, their direction with respect to environment boundary at maximally identical angles, so that pass through environment boundary at same point, if possible. EFFECT: decreased attenuation rate for waves passed through environment. 15 cl, 7 dwg