Combined linear power amplifying device and method

Details Combined linear power amplifying device and method Combined linear power amplifying device and method

1997-12-30

1999-11-16

Pascal, Robert

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

330 51, 330298, H03F 368, H03F 114, H02H 720

Patent

active

059865008

ABSTRACT:
A device and a method for combining outputs of a plurality of linear power amplifiers while preventing loss of signals. The combined linear power amplifying device, including: a power divider module which has paths connected respectively between one input terminal and a plurality of output terminals and switches connected respectively to each of the output terminals, for dividing power of a RF signal input to the power divider module and respectively outputting the divided power to the output terminals; a power combiner module which has paths connected respectively between a plurality of input terminals and one output terminal and the switches connected respectively to each of the input terminals, for combining power of a RF signal input to the power combiner module and outputting the combined power; and linear power amplifiers which are connected between the output terminals of the power divider module and the input terminals of the power combiner module, for linearly amplifying the RF signal power-divided in the power divider module thereby outputting the linearly amplified signal to the power combiner module, and upon generation of a failed state of the linear power amplifiers, the failed amplifier opening the path of the affected RF signal by turning off the corresponding switches in said power divider module and said power combiner module.

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