Multi-band amplifier module with harmonic suppression
US7925227B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jan 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/44
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An amplifier circuit includes a first power amplifier that can produce a first amplified signal in response to a first input signal in a first frequency band, and a second power amplifier that can produce a second amplified signal in response to a second input signal in a second frequency band. A center frequency of the second frequency band is higher than the a center frequency of frequency band A control circuit can turn on or turn off the first power amplifier and configured to turn on or turn off the second power amplifier. A shunting circuit is coupled to an output of the second power amplifier. The shunting circuit can attenuate harmonic signals from the first frequency band under the control of the control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.