Low-noise amplifier, in particular for a cellular mobile telephone
US6639468B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Jun 21, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45704
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The amplifier includes an input amplifier stage, an output amplifier stage cascode-connected with the input amplifier stage, and a load stage connected to the output stage. The load stage includes a plurality of circuits each including a capacitive component and an inductive component having a Q greater than 10, and having respective different resonant frequencies. All the gain curves respectively associated with all the circuits have, to within a stated tolerance, the same maximum gain value at the resonant frequencies. The gain curves respectively associated with two circuits having respective immediately adjacent resonant frequencies overlap below a threshold 3 dB, to within a stated tolerance, below the maximum gain value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.