Title :
An envelope tracking system using a GaAs Class-AB power amplifier and a Class-AD modulator
Author :
Bräckle, A. ; Egorenkov, S. ; Ott, M. ; Siegert, F. ; Heck, S. ; Berroth, M.
Author_Institution :
Inst. of Electr. & Opt. Commun. Eng., Univ. of Stuttgart, Stuttgart, Germany
Abstract :
In this paper an envelope tracking system with a maximum output power of 38 dBm operating at 2.06 GHz is presented. Static and dynamic measurements are performed. For a UMTS test signal with a peak-to-average power ratio of 11.2 dB power-added efficiency can be enhanced by 4 % to a value of 16.4 %.
Keywords :
3G mobile communication; UHF power amplifiers; gallium arsenide; modulators; tracking; GaAs; UMTS test signal; class-AB power amplifier; class-AD modulator; dynamic measurement; efficiency 16.4 percent; efficiency 4 percent; envelope tracking system; frequency 2.06 GHz; gain 11.2 dB; peak-to-average power ratio; power-added efficiency; static measurement; Modulation; Peak to average power ratio; Power amplifiers; Power generation; Power measurement; Radio frequency; Voltage measurement; Class-AB amplifier; class-AD amplifier; envelope tracking; power amplifiers;
Conference_Titel :
Microwave Conference (GeMiC), 2012 The 7th German
Conference_Location :
Ilmenau
Print_ISBN :
978-1-4577-2096-3
Electronic_ISBN :
978-3-9812668-4-9
