Wideband, minimum-rating filters and multicouplers for power amplifiers
US6552634B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Oct 2, 2000 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Jun 13, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/48
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and a circuit for power amplification over a wide frequency range based upon the use of minimum-rating filters or matching networks, negative-component signal processing, and single or multiple amplifiers. The filters and matching networks are preferably designed to minimize the required ratings of the amplifier(s) driving them. The signal processor or generator preferably uses negative components to produces a driving signal that is compensated for the ripple in the filter, matching network, and load. The outputs of multiple amplifiers optimized for different frequency ranges can be combined into a single load with flat frequency response, resistive loads presented to the amplifiers, and no inherent power loss in the combining network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.