REFLECTIVE SURFACE WITH ACOUSTICALLY CONTROLLED REFLECTED WAVE FOR TELECOMMUNICATION SYSTEMS Russian patent published in 2023 - IPC H01Q3/46 

FIELD: radio engineering.

SUBSTANCE: invention relates to transceiver electronic devices for reflecting radio waves, in which the angle of reflection is determined by the period of the diffraction grating, the parameters of which are controlled by acoustic waves, and is used to receive and transmit information in the HF and microwave ranges. The proposed reflective surface with acoustic control of the reflected wave for telecommunications systems includes a flat metal membrane capable of bending depending on the frequency of the control acoustic wave, whereas the membrane is fixed with an elastic element on the base of the housing and is located near the acoustic source, which creates elastic waves at a certain frequency and is controlled by a control unit, and the transverse dimensions of the membrane are determined in such a way that it fits at least eight lengths of the incident radio frequency electromagnetic wave and ten acoustic wavelengths at the selected frequency.

EFFECT: adjustment of the angle of reflection of the radio frequency wave depending on the selected frequency of the standing acoustic wave for controlling the reflective surface.

2 cl, 2 dwg