Phase change switches and circuits coupling to electromagnetic waves containing phase change switches
US6903362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2004 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Mar 11, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A switch is used in circuits which interact with electromagnetic radiation. The switch includes a substrate for supporting components of the switch. A first conductive element on the substrate is provided for connecting to a first component of the circuit, and a second conductive element on the substrate serves to connect to a second component of the circuit. A switch element is made up of a switching material on the substrate and connects the first conductive element to the second conductive element. The switching material is a compound which exhibits a bi-stable phase behavior and is switchable between a first impedance state value and a second impedance state value upon the application of energy thereto. A circuit consisting of a plurality of conductive elements includes the switch for varying current flow which has been induced by the application of electromagnetic radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.