High efficiency wideband feedback amplifier
US11777461B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2022 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Mar 9, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/492
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
According to an embodiment of the disclosure, a series or source feedback is provided to a solid-state power amplifier to achieve improved amplifier output power, good impedance match, and low voltage standing wave ratio (VSWR). In an embodiment, an inductive element is coupled to the source of the power amplifier transistor to serve as a series or source feedback for the transistor. In an embodiment, a high-impedance microstrip is provided as an inductive element coupled to the source of the transistor. In an embodiment, a series or source feedback is provided to each amplifier in a multistage amplifier circuit. In an embodiment, a greater series or source feedback is provided at a later stage of a multistage amplifier circuit, whereas a smaller series or source feedback is provided at an earlier stage of the multistage amplifier circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.