Optically controlled millimeter-wave switch based on substrate integrated waveguide
US11469337B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2020 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Feb 12, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optically controlled switch includes a substrate integrated waveguide (SIW) including: a first port and a second port, the first port and the second port being located at ends of the SIW to input and output an electromagnetic wave; and a shorting via electrically connected to a bottom layer of the SIW and separated from a top layer of the SIW by a dielectric gap. The optically controlled switch includes: a photoconductive element located on the top layer of the SIW and electrically connected to the shorting via and the top layer of the SIW, the photoconductive element being configured to have a dielectric state and a conductor state depending on a state of a controlling light flux; and a cutoff waveguide formed around the dielectric gap and the photoconductive element, and configured to provide control of the photoconductive element from a light source and block parasitic radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.