Wideband high linearity LNA with intra-band carrier aggregation support
US9800273B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2017 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Mar 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A device and method for amplifying signals is provided. The device can have an input to receive an input signal having a first desired signal on a first carrier, a second desired signal on a second carrier, and one or more interfering signals. The device can have a first carrier aggregation (CA) chain for use with the first desired signal and a second CA chain for use with the second desired signal. The first and second CA chains can be coupled to the input. The first and second CA chains can have a plurality of transconductance stages. Each of the transconductance stages can be configured as a high impedance stage or a low impedance stage. The transconductance stages can be selectively activated to incrementally adjust the transconductance, and therefore the input impedance, of each of the CA chains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.