Receiver dynamic range extension method
US5758273A · kind A · utility
4Cited by
15References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jan 25, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3052
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for adjusting the dynamic range of a receiver in a communication system in which an input signal is attenuated by a calculated amount before the input signal is provided to a mixer in the receiver. The attenuation amount is set so that reciprocal mixing noise caused by mixing the input signal with the local oscillator phase noise in the mixer is reduced until the total noise is the receiver noise floor (the sum of thermal noise and receiver noise figure), without degrading the signal-to-noise ratio of the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.