US 12,284,005 B2
Reconfigurable intelligent surface and electromagnetic sensing system based on reconfigurable intelligent surface
Chia-Chan Chang, Chiayi (TW); Sheng-Fuh Chang, Chiayi County (TW); Shih-Cheng Lin, Taitung County (TW); Yuan-Chun Lin, Hsinchu County (TW); and Wei-Lun Hsu, Tainan (TW)
Assigned to NATIONAL CHUNG CHENG UNIVERSITY, Chiayi (TW)
Filed by NATIONAL CHUNG CHENG UNIVERSITY, Chiayi (TW)
Filed on Oct. 31, 2022, as Appl. No. 18/051,509.
Claims priority of application No. 111129778 (TW), filed on Aug. 8, 2022.
Prior Publication US 2024/0047857 A1, Feb. 8, 2024
Int. Cl. H04B 7/04 (2017.01)
CPC H04B 7/04013 (2023.05) 10 Claims
OG exemplary drawing
 
1. A reconfigurable intelligent surface, comprising:
a radiant layer, comprising:
at least two antennas, wherein each of the at least two antennas is configured for sensing a polarization, a frequency or a direction angle of an incident electromagnetic wave; and
a plurality of reflecting units arranged to form a reflecting surface;
a sensing feeding circuit layer signally connected to the at least two antennas to produce a sensing signal;
a processing layer signally connected to the sensing feeding circuit layer and receiving the sensing signal, the processing layer configured to interpret an electromagnetic wave polarization type and a tilt angle of the polarization of the incident electromagnetic wave, a frequency value of the frequency of the incident electromagnetic wave, and a direction angle value of the direction angle of the incident electromagnetic wave to produce a controlling signal corresponding thereto; and
a controlling circuit layer signally connected to the radiant layer and the processing layer, wherein the controlling circuit layer receives the controlling signal and controls the reflecting units according to the controlling signal to adjust and form a reflecting electromagnetic wave.