Distributed amplifier having a tapered transconductance architecture
US6597243B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 2001 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Dec 31, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/18
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A distributed amplifier having an improved transimpedance and/or gain comprises an input transmission line, the input transmission line forming an input of the distributed amplifier and having a characteristic impedance associated therewith, and an output transmission line, the output transmission line forming an output of the distributed amplifier and having a characteristic impedance associated therewith. The distributed amplifier further comprises a plurality of amplifying stages, each of at least a subset of the amplifying stages including an input and an output, the input of each amplifying stage in the subset being operatively coupled to the input transmission line and the output of each amplifying stage in the subset being operatively coupled to the output transmission line. Each amplifying stage in the subset has a transconductance associated therewith which is operatively configured so as to produce a gain in the respective amplifying stage that substantially compensates for an input signal attenuation at the respective input of the amplifying stage. The present invention provides techniques for efficiently improving an output transimpedance and/or increasing an overall ga…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.