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A novel WLAN power amplifier adaptive loop based on delta-sigma non-linearity

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5 Author(s)
Leyssenne, L. ; IMS Lab.-ENSEIRB, Univ. of Bordeaux, Talence ; Kerherve, E. ; Deval, Y. ; Deltimple, N.
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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.

Published in:

Radio and Wireless Symposium, 2009. RWS '09. IEEE

Date of Conference:

18-22 Jan. 2009