RF variable gain amplifying device
US6667657B2 · kind B2 · utility
10Cited by
6References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Feb 14, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7206
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An RF variable gain amplifying device has an amplifying circuit, a switch element connected in parallel with the amplifying circuit, and a resistor connected in parallel with the amplifying circuit and with the switch element. The amplifying circuit does not operate when the switch element is in the ON state but operates when the switch element is in the OFF state. A potential at each of the input and output terminals of the switch element is lower when the switch element is in the ON state than when the switch element is in the OFF state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.