High frequency switch circuit
US7345521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2003 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Nov 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/693
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high-frequency switch circuit has a plurality of high-frequency switches for passing and blocking a high-frequency signal between an input terminal and an output terminal depending on a control potential applied as a control signal, a high-frequency detecting terminal for detecting high-frequency signal passing through the high-frequency switch which is in ON-state, and a voltage boosting circuit for generating a potential for increasing the control potential applied to the high-frequency switch which is in ON-state in order to increase difference between the control potential applied to the high-frequency switch which is in an ON-state and the control potential applied to the high-frequency switch which is in an OFF-state, depending on an intensity or amplitude of the detected high-frequency signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.