• 专利标题:   Apparatus used in semiconductor structure contains at least two tunable antennas providing reconfigurable metasurface, and control circuit comprising many switches providing current sources and ground voltage.
  • 专利号:   US2021048693-A1, US11314108-B2
  • 发明人:   FALK A L, ROSENBERG J C, LAI K, FARMER D B
  • 专利权人:   INT BUSINESS MACHINES CORP
  • 国际专利分类:   G02F001/01, H01Q003/01, H01Q003/30, H01Q003/44, H01Q009/04
  • 专利详细信息:   US2021048693-A1 18 Feb 2021 G02F-001/01 202132 English
  • 申请详细信息:   US2021048693-A1 US541860 15 Aug 2019
  • 优先权号:   US541860

▎ 摘  要

NOVELTY - Apparatus comprises: at least two tunable antennas providing a reconfigurable metasurface; and a control circuit comprising many switches providing current sources and a ground voltage. The many switches are coupled to respective ones of the many pixels of optically tunable material in each of the tunable antennas via one of many first electrodes (114). The ground voltage is coupled to respective ones of the many pixels of optically tunable material in each of the tunable antennas via one of many second electrodes. The control circuit is configured to modify states of respective ones of the many pixels of optically tunable material in the tunable antennas utilizing current supplied between the first electrodes and the second electrodes to adjust reflectivity of the many pixels of optically tunable material in each of the tunable antennas to dynamically reconfigure respective antenna shape configurations of each of the tunable antennas. USE - The apparatus is useful: in a semiconductor structure; and for forming arrays of pixels of an optically tunable material, the arrays providing tunable antennas for a reconfigurable metasurface (all claimed). DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a semiconductor structure; and (2) forming arrays of pixels of an optically tunable material, the arrays providing tunable antennas for a reconfigurable metasurface. DESCRIPTION OF DRAWING(S) - The figure shows a side cross-sectional view of a pixel providing a portion of a tunable antenna of a reconfigurable metasurface. Substrate (102) Mirror (104) Dielectric layer (106) Transparent conductor layer (112) Electrodes (114)