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1. WO2022094686 - NONRECIPROCAL BEAM STEERABLE METASURFACES

Publication Number WO/2022/094686
Publication Date 12.05.2022
International Application No. PCT/CA2020/051514
International Filing Date 09.11.2020
IPC
H01Q 3/36 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
26varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
30varying the phase
34by electrical means
36with variable phase-shifters
H01Q 1/40 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
40Radiating elements coated with, or embedded in, protective material
H01Q 9/04 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
H04B 1/59 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
59Responders; Transponders
Applicants
  • THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO [CA]/[CA]
Inventors
  • TARAVATI, Sajjad
  • ELEFTHERIADES, George V.
Agents
  • WRIGHT, Laurie
  • HUNTER, Christopher N.
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) NONRECIPROCAL BEAM STEERABLE METASURFACES
(FR) MÉTASURFACES ORIENTABLES À FAISCEAU NON RÉCIPROQUE
Abstract
(EN) This invention presents a full-duplex nonreciprocal-beam-steering transmissive phase-gradient metasurface. The metasurface comprises a conductor layer interposed between two dielectric layers. Each of the dielectric layers comprises a plurality of meta-atoms embedded therein. Each of the meta-atoms comprises phase shifters and antenna elements. The meta-surface functions such that when an electromagnetic wave is received at the surface of the metasurface, the metasurface transmits a wave having an identical frequency to the frequency of the received wave but to a different direction in space.
(FR) L'invention concerne une métasurface à gradient de phase transmissive à orientation de faisceau non réciproque en duplex intégral. La métasurface comprend une couche conductrice interposée entre deux couches diélectriques. Chacune des couches diélectriques comprend une pluralité de méta-atomes qui y sont incorporés. Chacun des méta-atomes comprend des déphaseurs et des éléments d'antenne. La métasurface fonctionne de telle sorte que, lorsqu'une onde électromagnétique est reçue à la surface de la métasurface, la métasurface émet une onde présentant une fréquence identique à la fréquence de l'onde reçue, mais à une direction différente dans l'espace.
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