Active cross-band isolation for a transformer-based power amplifier
US10181828B2 · kind B2 · utility
0Cited by
33References
20Claims
0Family size
Inventors
Key dates
| Filing date | Jun 27, 2017 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Jun 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0408
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Embodiments of radio frequency (RF) systems include a plurality of power amplifiers having a primary winding and a secondary winding. Each of the power amplifiers may be configured to process signals of different frequency bands. The primary winding for one power amplifier can be detuned while another power amplifier is being used in a transmit mode. By detuning the power amplifier, power coupling from the transmitting power amplifier can be reduced or eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.