IEEE Microwave and Guided Wave Letters · 1999 · 54 citations · 2 references
EngineeringElectrical EngineeringMicroelectronicsMicrowave EngineeringWireless CommunicationsIntegrated Circuit DesignMicrowave AmplifiersMicrowave Integrated CircuitsMicrowave Semiconductor DevicesMillimeter-wave CommunicationsRadio-frequency Integrated CircuitsMicrowave Amplifier DesignMicrowave Integrated Circuit DesignMillimeter-wave Integrated CircuitsMonolithic Microwave Integrated Circuit AmplifiersMonolithic Microwave Integrated Circuit DesignMonolithic Microwave Integrated CircuitsPower Added EfficiencyPower Efficiency
The design and performance of a fully integrated Ku-band Doherty amplifier monolithic microwave integrated circuit (MMIC) is presented. The circuit is implemented in 0.25-μm pHEMT MMIC technology and demonstrates the feasibility of the Doherty approach at Ku-band frequencies. The fabricated devices achieved a two-tone power-added efficiency of 40% with a corresponding third-order C/I ratio of 24 dBc at 17 GHz. To the author's knowledge this is the first fully integrated pHEMT Doherty amplifier MMIC as well as the first experimental results for a Doherty amplifier at Ku-band reported to date.
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The microwave Doherty amplifier
R. McMorrow, David M. Upton, P. R. Maloney · 2002 · 48 citations