Circuits having switches providing increased voltage swing uniformity
US9509363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2015 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Mar 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Circuits are disclosed providing uniform voltage swing across transmit switches for improved device performance. An integrated circuit (IC) formed on a die includes a switch having one or more field effect transistors (FETs) defining an RF signal path between an input port and an output port, each FET having a body node, and the switch being configured to be capable of being in ON and OFF states. The IC further includes a voltage distribution circuit coupled to the switch and configured to reduce voltage distribution variation across the switch, the voltage distribution circuit including one or more elements coupled to a selected body node of one or more FETs to reduce voltage distribution variation across the switch when the switch is in an ON state and is encountered by a respective RF signal at the input port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.