Radio-frequency switching apparatus
US11201634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2021 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Feb 18, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/383
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio-frequency switching apparatus that can be used to turn a signal path on or off or to attenuate a radio-frequency signal. The switching apparatus comprises at least one radio-frequency input, at least one radio-frequency output, at least one transmission line providing a signal path between the at least one radio-frequency input and the at least one radio-frequency output, and at least one transition metal oxide portion. The radio-frequency switching apparatus also comprises direct current blocking means electrically coupled between the at least one transition metal portion and the at least one radio-frequency input. The radio-frequency switching apparatus also comprises biasing means for providing a bias across the at least one transition metal oxide portion such that power transferred between the radio-frequency input and the radio-frequency output is controlled by controlling the bias level across the at least one transition metal oxide portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.