Amplifiers – With plural amplifier channels – Redundant amplifier circuits
Reexamination Certificate
2005-11-08
2005-11-08
Tokar, Michael (Department: 2819)
Amplifiers
With plural amplifier channels
Redundant amplifier circuits
C330S126000, C330S051000
Reexamination Certificate
active
06963241
ABSTRACT:
The present invention relates generally to the field of RF transmitters, and more particularly to a method and apparatus for increasing the efficiency of transmitters which are capable of transmitting at different power levels in each of at least two frequency bands. An inventive method is presented as well as an inventive transmitter comprising at least one power amplifier in which the load in the transmission line is varied as the output power is varied, in order to keep the efficiency of the power amplifier at a high level.
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Nguyen Linh V.
Telefonaktiebolaget LM Ericsson (publ)
Tokar Michael
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