Active cross-band isolation for a transformer-based power amplifier
US10547278B2 · kind B2 · utility
0Cited by
37References
20Claims
0Family size
Inventors
Key dates
| Filing date | Dec 21, 2018 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Dec 21, 2038 |
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.