Amplifiers with attenuator in feedback and bypass paths
US12063016B2 · kind B2 · utility
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4References
22Claims
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Key dates
| Filing date | Sep 23, 2021 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Jan 5, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G2201/106
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods and devices to support multiple gain states in amplifiers are described. The methods and devices are based on implementing a feedback element in the amplifier and adjusting the impedance of the feedback element to provide a desired gain while maintaining the overall performance of the amplifier and reducing degradation of the S12 parameter. The feedback element includes an adjustable attenuator and a tunable resistive element. The adjustable attenuator is provided in a path that is common to the feedback path and the bypass path of the amplifier. Exemplary implementations of adjustable attenuators are also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.