Load variation tolerant radio frequency (RF) amplifier
US6954623B2 · kind B2 · utility
107Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2003 |
| Grant date | Oct 11, 2005 |
| Priority date | — |
| Expiry date | Jun 27, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A power amplifier having a phase shift and impedance transformation element is disclosed. The power amplifier comprises a plurality of amplification paths, a first phase shift element at an input of each amplification path and a second phase shift element at an output of each amplification path. The amplifier also comprises an impedance transformation element associated with the second phase shift element and a power combiner configured to combine an output of each amplification path into a single output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.