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Patent Searching and Data


Title:
SYSTEM AND METHOD OF BASEBAND LINEARISATION FOR A CLASS G RADIOFREQUENCY POWER AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2019/207476
Kind Code:
A1
Abstract:
The invention relates to a system and a method of baseband linearisation (2) for a class G radiofrequency power amplifier (3), said linearisation system (2) comprising a module for selecting the amplifier power supply voltage (11), a digital predistortion module (12), and a module for extracting predistortion coefficients (15), characterised in that said linearisation system (2) also comprises a digital filter (13) with complex coefficients, the inlet of which is connected to the outlet of the digital predistortion module (12), and a module for extracting filter coefficients (16) which is designed to extract filter coefficients (16a) used by the digital filter with complex coefficients (13).

Inventors:
GATARD, Emmanuel (31 rue Diane Fossey, Panazol, Panazol, 87350, FR)
LACHAUD, Pierre (8 rue de Grateloube, Saint Just le Martel, 87590, FR)
Application Number:
IB2019/053335
Publication Date:
October 31, 2019
Filing Date:
April 23, 2019
Export Citation:
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Assignee:
WUPATEC (20 Rue Atlantis Batiment Galileo, Limoges, 87000, FR)
International Classes:
H03F3/24; H03F1/02; H03F1/32; H03F3/189
Foreign References:
US20100277236A12010-11-04
US20010001546A12001-05-24
US20100073088A12010-03-25
US20140118065A12014-05-01
Attorney, Agent or Firm:
CABINET CHAILLOT (16/20 Avenue de l'Agent Sarre, B.P. 74, Colombes Cedex, 92703, FR)
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