High efficiency microwave amplifier

Details High efficiency microwave amplifier High efficiency microwave amplifier

H - Electricity

03

F

H03F 1/00 (2006.01) A61B 18/18 (2006.01) H03F 3/26 (2006.01)

Patent

CA 2710048

Disclosed is an apparatus and method for operating a microwave amplifier with improved efficiency and reduced harmonic emissions. The disclosed amplifier includes a variable rail voltage supply and a variable input drive stage. A controller continually monitors the amplifier output and adjusts the rail voltage and input drive signal to achieve high efficiency and low harmonic emissions. The amplifier may include a dynamic bias controller configured to operate the gain elements outside the linear region. Efficiencies of over 70% may be achieved by the disclosed amplifier.

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