Radio frequency switch with improved intermodulation distortion through use of feed forward capacitor
US8008988B1 · kind B1 · utility
38Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2008 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Mar 31, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0054
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A radio frequency (RF) switch using a field effect transistor has 2nd order intermodulation distortion improved through use of a feed forward capacitor electrically connected between the gate and a voltage coupler connected between the source and drain of the FET. With a control voltage provided at the gate through a gate feed resistor for operation of the FET, the feed forward capacitor feeds an RF voltage from the drain terminal and the source terminal to the gate terminal through the gate feed resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.