A Reconfigurable CMOS Power Amplifier based on Switched Power Cells for 3GPP LTE Applications - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2012

A Reconfigurable CMOS Power Amplifier based on Switched Power Cells for 3GPP LTE Applications

Résumé

In this paper, a power amplifier (PA) using power cell switching (PCS) technique, implemented in 65 nm CMOS technology is presented. The main objective of the proposed architecture is to significantly improve the efficiency at power back-off. Distributed active transformers (DATs) are employed as splitter, combiner and DC bias feed to partition the power requirements among the parallelized power cells. Individual cell can be dynamically turned on/off in response to the desired output power. Post-layout simulations were conducted in the 3GPP LTE band at 2.535GHz. The most significant improvement is obtained at 7 dB back-off from 27dBm where PAE is increased from 2.8% to 5%.

Domaines

Electronique
Fichier non déposé

Dates et versions

hal-00719719 , version 1 (20-07-2012)

Identifiants

  • HAL Id : hal-00719719 , version 1

Citer

Adrien Tuffery, Nathalie Deltimple, Bernardo Leite, Philippe Cathelin, Vincent Knopik, et al.. A Reconfigurable CMOS Power Amplifier based on Switched Power Cells for 3GPP LTE Applications. DCIS, Nov 2012, AVIGNON, France. pp. ⟨hal-00719719⟩
91 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More