Power amplifier with output power control
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United States of America Patent
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Aug 24, 2010
Grant Date -
Mar 4, 2010
app pub date -
Sep 3, 2008
filing date -
Sep 3, 2008
priority date (Note) -
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Abstract
This disclosure relates systems and methods for a power amplifier with output power control. The power amplifier can include multiple stages of amplification. An RF signal is fed to the power amplifier with output control that amplifies the power of the RF signal to meet operational requirements. A first stage of the power amplifier controls the output power via voltage regulation. An isolating device is introduced in the transmission path of the RF signal between the first stage and the following stages of the power amplifier. The isolating device ensures that the load impedance of the first stage remains fixed at a constant value.
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