Title :
A novel WLAN power amplifier adaptive loop based on delta-sigma non-linearity
Author :
Leyssenne, L. ; Kerhervé, E. ; Deval, Y. ; Deltimple, N. ; Belot, D.
Author_Institution :
IMS Lab.-ENSEIRB, Univ. of Bordeaux, Talence
Abstract :
The following discussion presents a novel technique of power management in TX 4G transmit path, capable of efficiently handling wide channel bandwidth and high peak-to-average-power-ratio (PAPR). It consists in a power adaptive closed loop, based on a switched multi-cell power amplifier (PA) core and a novel delta-sigma control loop topology. This work was carried out with a ST microelectronics SiGe technology.
Keywords :
delta-sigma modulation; power amplifiers; wireless LAN; wireless channels; WLAN power amplifier adaptive loop; delta-sigma nonlinearity; power management; Adaptive control; Bandwidth; Energy management; Microelectronics; Peak to average power ratio; Power amplifiers; Programmable control; Silicon germanium; Topology; Wireless LAN; Delta-Sigma; Power amplifier; WLAN; power adaptive loop;
Conference_Titel :
Radio and Wireless Symposium, 2009. RWS '09. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2698-0
Electronic_ISBN :
978-1-4244-2699-7
DOI :
10.1109/RWS.2009.4957421
