Gain and Delay Mismatches Cancellation in LINC and Polar Transmitters

Corinne Berland (1, 2) , Jean-François Bercher (3) , Olivier Venard (2)

1 LaMIPS - Laboratoire de Microélectronique et de Physique des Semiconducteurs
2 ESIEE Paris
3 LIGM - Laboratoire d'Informatique Gaspard-Monge

This article presents the application of a gradient algorithm on impairments correction for polar and LINC transmitters (LInear amplification with Non linear Component). The two aspects of the approach are presented: identification and correction. The large improvements obtained using such solutions are demonstrated for both transmitters.

Mots clés: gradient methods; radio transmitters; LINC transmitters; delay mismatches cancellation; gain mismatches cancellation; gradient algorithm; linear amplification with non linear component; polar transmitters

Domaines: Informatique et langage [cs.CL]

Corinne Berland, Jean-François Bercher, Olivier Venard. Gain and Delay Mismatches Cancellation in LINC and Polar Transmitters. International Symposium on Circuits and Systems (ISCAS'10), 2010, Paris, France. pp.1017-1020, ⟨10.1109/ISCAS.2010.5537365⟩. ⟨hal-00621958⟩