Amplifier switching
US6710650B1 · kind B1 · utility
15Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Sep 30, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7239
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A low noise amplifier (LNA) in a LNA arrangement is selectively bypassed, without detracting from the performance of the LNA arrangement when it is not bypassed, by selecting components of an input signal which are reflected at the input of the LNA. These reflected signal components can be increased, when the LNA is bypassed, by interrupting a supply voltage to the LNA and/or shunting the input of the LNA to ground. The arrangement can be a balanced LNA arrangement, using two LNAs and two quadrature couplers, or it can be an unbalanced LNA arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.