Ultra compact multi-band transmitter with robust AM-PM distortion self-suppression techniques
US9887673B2 · kind B2 · utility
2Cited by
2References
17Claims
0Family size
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Key dates
| Filing date | Mar 11, 2016 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Mar 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0408
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A communication device includes a power amplifier that generates power signals according to one or more operating bands of communication data, with the amplitude being driven and generated in output stages of the power amplifier. The final stage can include an output passive network that suppresses an amplitude modulation-to-phase modulation (AM-PM) distortion. During a back-off power mode a bias of a capacitive unit of the output power network component can be adjusted to minimize an overall capacitance variation. The output passive network can further generate a flat-phase response between dual resonances of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.