Cartesian Feedback with Digital Enhancement for CMOS RF Transmitter

Nathalie Deltimple (1) , Bertrand Le Gal (1) , Chiheb Rebai (2) , Alexis Aulery (1) , Nicolas Delaunay (3, 1) , Dominique Dallet (1) , Didier Belot (3) , Eric Kerherve (1)

1 IMS - Laboratoire de l'intégration, du matériau au système
2 SUP'COM [TUNIS] - Ecole supérieure des communications de Tunis
3 ST-GRENOBLE - STMicroelectronics [Grenoble]

The trend of communication systems with higher data rates requirescomplex modulation techniques. To satisfy the stringent linearityrequirements of the emitter, linearization techniques have attractedmuch attention. Many methods are proposed to reduce the effects ofnonlinearities. We implemented an analog and digital Cartesian feedbacktechnique in an integrated transmitter in 65-nm CMOStechnology. This approach offers flexibility and paves the way formulti-standard linearized RF transmitters.

Mots clés: CMOS technology; ACLR; Linearization technique; Cartesian feedback

Domaines: Micro et nanotechnologies/Microélectronique; Electronique

Nathalie Deltimple, Bertrand Le Gal, Chiheb Rebai, Alexis Aulery, Nicolas Delaunay, et al.. Cartesian Feedback with Digital Enhancement for CMOS RF Transmitter. Linearization and Efficiency Enhancement Techniques for Silicon Power Amplifiers, 2014, ⟨10.1016/B978-0-12-418678-1.00002-7⟩. ⟨hal-01090527⟩