Transmitter including a composite amplifier

Details Transmitter including a composite amplifier Transmitter including a composite amplifier

H - Electricity

03

F

H03F 1/02 (2006.01) H03F 1/07 (2006.01) H04B 1/02 (2006.01)

Patent

CA 2414364

A composite amplifier includes a main power amplifier (10) and an auxiliary power amplifier (12), which are connected to a load (14) over a Doherty output network (16). Filters (26, 28) are provided for pre-filtering the amplifier input signals in such a way that the signals meeting at the output of the main amplifier have essentially the same frequency dependence.

L'invention porte sur un amplificateur composite comprenant un amplificateur de puissance principal (10) et un amplificateur de puissance auxiliaire (12) qui sont raccordés à une charge (14) sur un réseau de sortie Doherty (16). Des filtres (26, 28) sont prévus pour préfiltrer les signaux d'entrée de l'amplificateur de sorte que le signaux se rencontrant à la sortie de l'amplificateur principal varient essentiellement avec la même fréquence.

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