US 12,567,897 B2 · Reconfigurable intelligent surface forming multiple resonances

Abstract

The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A unit cell of a RIS includes a first conductive structure including a first element and a second element disposed under the first element; a second conductive structure including a third element and a fourth element disposed under the third element; and a switch circuit disposed between the first conductive structure and the second conductive structure. As a first RF signal from a first external device is incident on the unit cell, a second RF signal having a first resonance frequency is reflected based on electrical paths formed respectively in the first element and the third element, and a third RF signal having a second resonance frequency different from the first resonance frequency is reflected based on electrical paths formed respectively in the second element and the fourth element.

Claims20

Dependent claims

A unit cell of a reconfigurable intelligent surface (RIS), the unit cell comprising:

a first conductive structure comprising a first conductive element and a second conductive element, wherein the first conductive element and the second conductive element are electrically connected with each other;
a second conductive structure comprising a third conductive element and a fourth conductive element, wherein the third conductive element and the fourth conductive element are electrically connected with each other;
and
a switch circuit selectively connecting the first conductive structure and the second conductive structure,
wherein, in case that a signal from a first external device is incident on the unit cell,
a first reflected signal is formed based on electrical paths formed in the first conductive structure, and a second reflected signal is formed based on electrical paths formed in the second conductive structure, and
wherein the switch circuit is configured to adjust phases of the first reflected signal and the second reflected signal by selectively connecting the first conductive structure and the second conductive structure.

4 more elements

A reconfigurable intelligent surface (RIS) comprising:

a plurality of unit cells comprising a first unit cell, wherein the first unit cell comprises:
a first conductive structure comprising a first conductive element and a second conductive element, wherein the first conductive element and the second conductive element are electrically connected with each other;
a second conductive structure comprising a third conductive element and a fourth conductive element, wherein the third conductive element and the fourth conductive element are electrically connected with each other;
and
a first switch circuit selectively connecting the first conductive structure and the second conductive structure,
wherein, in case that a signal from a first external device is incident on the first unit cell, a first reflected signal is formed based on electrical paths formed in the first conductive structure, and a second reflected signal is formed based on electrical paths formed in the second conductive structure, and
wherein the first switch circuit is configured to adjust phases of the first reflected signal and the second reflected signal by selectively connecting the first conductive structure and the second conductive structure.

4 more elements

Dependencies are inferred from the claim text.

Reconfigurable intelligent surface forming multiple resonances

Life of this patent

Reconfigurable intelligent surface forming multiple resonances

Life of this patent

Abstract

Claims20