Licensing Wolfspeed's Doherty Amplifier-Related Patents
Wolfspeed's Doherty amplifier-based patents may be licensed for the manufacture and sale of Doherty-based amplifier products. The US patents included in this license are listed in the table below; foreign counterparts are also included. Contact Wolfspeed at email@example.com for further information.
Patent No. or Publication No.
US # 6,737,922
May 18, 2004
N-way RF power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division
US # 6,791,417
September 14, 2004
N-way RF power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances
US # 6,700,444
March 2, 2004
N-way RF power amplifier with increased backoff power and power added efficiency
US # 7,764,120
July 27, 2010
Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels
US # 7,193,473
March 20, 2007
High power Doherty amplifier using multi-stage modules
US # 6,798,295
September 28, 2004
Single package multi-chip RF power amplifier
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