Selectable-input-impedance radio-frequency reception amplifier
US9431965B1 · kind B1 · utility
1Cited by
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25Claims
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Key dates
| Filing date | Jan 27, 2015 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jan 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/045
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A radio-frequency amplifier includes a matching network comprising a switching unit. The switching unit is operable in a first condition to provide a selected impedance at a first selected frequency. The switching unit is operable in a second condition to form a bandstop filter. A stop band of the bandstop filter includes a second selected frequency. The first selected frequency may be a second harmonic of a transmission frequency different from the second selected frequency. A multi-band transceiver is also described, as is a method of transmitting a first signal and a second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.