Methods for radio calibration at room temperature
US6418301B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1999 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Aug 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/372
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Each radio of a plurality of radios includes a plurality of variable gain stages connected in series. The radio further includes at least one power detector connected to the variable gain stages, a temperature sensor, and a processor for controlling the variable gain stages in-service based upon the at least one power detector, the temperature sensor, and stored frequency and power compensation values. A method for calibrating each radio includes generating frequency compensation values for at least one first variable gain stage by supplying a first calibration signal swept in frequency while maintaining the radio at a constant temperature. The method further includes generating power compensation values for at least one second variable gain stage by supplying a second calibration signal swept in power level and while maintaining the radio receiver at a constant temperature. The frequency and power compensation values generated at the constant temperature are stored for use by the processor during in-service temperature variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.