H - Electricity – 03 – F
Patent
H - Electricity
03
F
H03F 1/42 (2006.01) H03F 1/02 (2006.01) H03F 1/32 (2006.01) H03F 3/60 (2006.01) H03F 3/68 (2006.01)
Patent
CA 2204409
An amplifier circuit comprising a carrier amplifier (24) producing a carrier amplifier output signal, a peaking amplifier (26) coupled to the carrier amplifier (24) in a Doherty configuration, and a combination circuit responsive to the carrier amplifier (24) and the peaking amplifier (26). The peaking amplifier (26) is voltage biased to produce an adjusted intermodulation product signal. The combination circuit (35) combines the adjusted modulation product signal with the carrier amplifier output signal to produce a substantially linearized amplifier circuit output signal.
Circuit amplificateur comprenant un amplificateur de porteuse (24) produisant un signal de sortie d'amplificateur de porteuse, un amplificateur de correction (26) couplé à l'amplificateur de porteuse (24) dans une configuration de Doherty, et un circuit de combinaison réceptif à l'amplificateur de porteuse (24) et à l'amplificateur de correction (26). L'amplificateur de correction (26) est polarisé en tension pour produire un signal de produit d'intermodulation ajusté. Le circuit de combinaison (35) combine le signal de produit de modulation ajusté avec le signal de sortie de l'amplificateur de porteuse pour produire un signal de sortie de circuit amplificateur sensiblement linéarisé.
Gowling Lafleur Henderson Llp
Motorola Inc.
LandOfFree
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