A high dynamic range low-power differential input stage and its usage method, and application in bi-balance frequency mixer

A low-power high dynamic range RF input stage (200) with a noiseless degeneration component, such as a capacitor (201), is provided. High dynamic range means a combination of low noise contribution by the stage (200) and a low level of intermodulation products occurring especially at high input leve...

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Bibliographische Detailangaben
Hauptverfasser:	VLEMMINGS MARC LAMBERTUS JOHAN, MOONEN OSWALD JOSEF, NEELEN ARNOLD HENDRIK
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRICITY
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Beschreibung
Zusammenfassung:	A low-power high dynamic range RF input stage (200) with a noiseless degeneration component, such as a capacitor (201), is provided. High dynamic range means a combination of low noise contribution by the stage (200) and a low level of intermodulation products occurring especially at high input levels. Low power means that the power consumption of a conventional input stage is about 5 times higher than the power consumption of the stage according to the invention, for the same noise, gain and distortion level. This new stage can be used in amplifiers, but also in the lower stage of double balanced mixers (300-400) commonly used in RF receivers, examples of which are applications, are provided.