Title :
First and second order polynomial functions for bandwidth reduction of dynamic biasing signals
Author :
Miranda, Juan F. ; Olavsbråten, Morten ; Gjertsen, Karl M. ; Caharija, Walter
Author_Institution :
Norwegian Univ. of Sci. & Technol., Trondheim, Norway
fDate :
Aug. 28 2010-Sept. 3 2010
Abstract :
A dynamic biasing method for enhancing PAE while controlling the bandwidth of the gate and drain bias signals has been presented. Simulation with a modulated signal shows a 40 point increase in PAE with an increment of 3dB in ACPR compared to a class-A amplifier. Such a system would require a drain bandwidth of only 2 times the RF signal bandwidth, which is only a fraction of that used in standard Envelope Tracking.
Keywords :
bandwidth allocation; polynomials; signal processing; PAE; bandwidth reduction; dynamic biasing signals; envelope tracking; polynomial functions; power-added efficiency; Bandwidth; Gain; Logic gates; Polynomials; Power amplifiers; Power generation; Radio frequency;
Conference_Titel :
Wireless Information Technology and Systems (ICWITS), 2010 IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-7091-4
DOI :
10.1109/ICWITS.2010.5611845
