High-frequency amplifier

Details High-frequency amplifier High-frequency amplifier

H - Electricity

03

F

H03F 3/68 (2006.01) H03F 1/32 (2006.01) H03F 1/56 (2006.01) H03F 3/189 (2006.01) H03F 3/60 (2006.01)

Patent

CA 2389303

A divider 3 for dividing and distributing a high-frequency signal input from an input terminal 1 to two output sides, a main amplifying unit 4, connected to one output side of the divider 3, for amplifying one high-frequency signal output from the divider 3, a subsidiary amplifying unit 5, connected to the other output side of the divider 3, for performing no operation in case of a low instantaneous electric power of the other high-frequency signal output from the divider 3 and amplifying the other high-frequency signal in case of a high instantaneous electric power of the other high-frequency signal and a circulator 6 for injecting the high-frequency signal amplified in the subsidiary amplifying unit 5 into the output side of the main amplifying unit 4 and injecting the high-frequency signal amplified in the main amplifying unit 4 into an output terminal 2 are arranged.

L'invention comprend une unité (3) de distribution permettant de diviser un signal haute fréquence introduit par une borne (1) d'entrée en deux signaux, une unité (4) d'amplification principale connectée avec une première sortie de l'unité (3) de distribution, permettant d'amplifier un signal haute fréquence provenant de cette unité (3) de distribution, une unité (5) d'amplification auxiliaire connectée avec une seconde sortie de l'unité (3) de distribution, qui s'arrête de fonctionner lorsque la puissance momentanée d'un signal haute fréquence est faible, et amplifie un signal haute fréquence provenant de l'unité (3) de distribution lorsque la puissance est suffisante, et un circulateur (6) permettant de conduire le signal haute fréquence amplifié par l'unité (5) auxiliaire vers la sortie de l'unité (4) d'amplification principale et le signal haute fréquence amplifié par l'unité (4) principale vers une borne (2) de sortie.

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