System and method for noise and spurious suppression in power amplifier systems
US6459337B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Sep 8, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/372
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier system, including a vacuum tube amplifier having an input signal terminal and an output signal terminal, and a phase noise suppression circuit having first and second input terminals and an output terminal, wherein the first input terminal is coupled to the input signal terminal of the vacuum tube amplifier, the second input terminal is coupled to the output signal terminal of the vacuum tube amplifier, and the output terminal is coupled to one of an electron source of the vacuum tube amplifier and an interaction region of the vacuum tube amplifier. The amplifier system may also, or alternatively, include an amplitude noise suppression circuit having first and second input terminals and an output terminal, wherein the first input terminal is coupled to the input signal terminal of the vacuum tube amplifier, the second input terminal is coupled to the output signal terminal of the vacuum tube amplifier, and the output terminal is coupled to one of a focusing electrode of the electron source and a grid of the electron source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.