DUAL GAIN AMPLIFICATION LOW NOISE AMPLIFIER

A dual gain amplification low noise amplifier that includes an amplification circuit to a provide dual gain amplification - high gain amplification for a weak data signal and low gain amplification for a strong data signal. Also included is a control circuit to maintain approximately the same P1dB p...

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Bibliographic Details
Main Authors CHEAH, JONATHAN, LOW, ENG, CHUAN
Format Patent
LanguageEnglish
French
Published 29.04.2004
Edition7
Subjects
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Summary:A dual gain amplification low noise amplifier that includes an amplification circuit to a provide dual gain amplification - high gain amplification for a weak data signal and low gain amplification for a strong data signal. Also included is a control circuit to maintain approximately the same P1dB point for the weak signal during high gain amplification as for the strong signal during low gain amplification. La présente invention concerne un amplificateur faible bruit à double amplification du gain qui inclut un circuit d'amplification devant fournir une amplification à deux niveaux de gain, en l'occurrence une amplification à niveau de gain élevé pour un signal de données faible, et un niveau de gain faible pour un signal de données fort. L'amplificateur comporte un circuit de commande servant à conserver approximativement le même point de compression à 1 dB (P1dB) pour le signal faible pendant l'amplification à fort niveau de gain que pour le signal fort pendant l'amplification à faible niveau de gain.
Bibliography:Application Number: WO2003US01441