Current-stacked DX switch with high rf isolation
US5898911A · kind A · utility
7Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1997 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Mar 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An rf receiver front end that includes a switchable attenuation circuit or DX switch and uses a power saving technique. The switchable attenuation circuit is dc connected in series with one or more rf circuits so that power drawn from a constant voltage power supply is reduced. The rf circuit may include an rf mixer, a low-noise amplifier, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.