Method and apparatus for enhancing the output from a traveling wave tube
US3938056A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1971 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | Jan 18, 1991 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J25/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method and apparatus are described for reducing amplifier distortion by establishing a first signal at a first frequency to be amplified in an amplifier which while amplifying the first signal produces a second undesired signal at another frequency, producing on a cycle by cycle basis of the first signal a third signal at the other frequency, adjusting by no more than substantially 180.degree. the relative phase and amplitude of the first and third signals for mutual cancellation of the second and third signals and then amplifying the first signal in the amplifier and reducing the power of signals at the other frequency relative to the power of the amplifier signal at the first frequency. Examples are given where the second signal is a harmonic or an intermodulation frequency signal of the first signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.