Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
October 6, 2009
Patent Application Number
11948910
Date Filed
November 30, 2007
Patent Primary Examiner
Patent abstract
An RF power amplifier includes a plurality of amplifier cells. Each amplifier cell includes a bipolar transistor and a base circuit that comprises an RF coupling capacitor, a bias resistor, a base capacitor, and a base resistor. The base circuit transmits DC bias current and an RF signal to the base of the bipolar transistor to provide a selectable frequency response. The base circuit may be implemented using a structure of stacked capacitors.
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