Title :
D4. Dynamic Supply RF Power Amplifier
Author :
Abdullah, Wael ; Hegazi, Emad
Author_Institution :
Faculty of Engineering, Ain Shams University, Cairo, Egypt
Abstract :
This work aims at the design and implementation of a 2.14GHz 24dBm class-A radio frequency (RF) power amplifier (P A). Efficiency improvement is then achieved through dynamical control of its constant supply voltage through a DC-DC converter. Control voltage of the DC-DC converter is obtained by closing the loop through sampling the power of the P A output signal using directional coupler and RF power detector. Power response of the power amplifier with and without the dynamic supply is compared as well as other amplifier parameters.
Keywords :
dynamic supply; high efficiency; power amplifier;
Conference_Titel :
Radio Science Conference (NRSC), 2013 30th National
Conference_Location :
Cairo, Egypt
Print_ISBN :
978-1-4673-6219-1
DOI :
10.1109/NRSC.2013.6587948
