Phased array amplifier linearization
US11973473B2 · kind B2 · utility
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40References
20Claims
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Key dates
| Filing date | Apr 13, 2022 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | Apr 13, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0425
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods provide predistortion for a phased array. Radio frequency (RF) sample signals from phased array elements are provided along return paths and are combined by a hardware RF combiner. Phase shifters are adjusted such that the RF sample signals are phase-aligned when combined. Adaptive adjustment of predistortion for the amplifiers of the phased array can be based on a signal derived from the combined RF sample signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.