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US Patent Application 20100052789 - Power Amplifier With Output Power Control

Application 20100052789 Filed on September 3, 2008. Published on March 4, 2010

Inventors

Assignee

US Class

330/285Having particular biasing means

Attorney, Agent or Firm

International Class

H03G 3/10

Issued Patent Number:

7782133


Abstract text


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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