Switch circuit for high frequency signals wherein distortion of the signals are suppressed
US7915946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2007 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Jul 14, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/165
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high-frequency switch circuit includes: a switch section comprised of a field effect transistor having a plurality of bias circuits and a potential generating circuit for generating bias voltages from a control signal and supplying them to the bias circuits. The field effect transistor forms the passage route of a high-frequency signal by turning on and off in accordance with the control signal. The bias circuits are provided to produce a potential difference between the drain terminal and the source terminal of the field effect transistor and to apply bias voltages lower than the voltage of the control signal to the drain terminal, and the source terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.