Variable gain amplifier and method thereof
US10439577B2 · kind B2 · utility
1Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Dec 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An embodiment provides a variable gain amplifying method includes: on a signal path of a radio frequency input signal, amplifying a radio frequency input signal by a plurality of serially-coupled amplifiers; steering currents from the amplifiers and controlling respective gains of the amplifiers; performing gain match on the signal path of the radio frequency input signal; and performing phase compensation on the signal path of the radio frequency input signal. The signal path of the radio frequency input signal further has first and second phase variation trends which compensate each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.