Licensing
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 licensing@wolfspeed.com for further information.
Patent No. or Publication No. | Issue Date | Full Title |
|---|---|---|
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 |