High-frequency prestage and receiver
US8660512B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 21, 2009 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Oct 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/12
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A filter stage for use in a receiver includes a switch with an input coupled to an antenna terminal, a first output and a second output; a first filter of a first type coupled to the first output; and a second filter of a second type different from the first type, coupled to the second output. A receiver includes a filter stage as mentioned above; and a switching unit coupled to the filter stage for controlling a switching state of the switch, to selectively connect the antenna terminal to the second output, depending on a selection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.