PREDISTORTION LINEARIZING - KONINKL PHILIPS ELECTRONICS NV

Title:

PREDISTORTION LINEARIZING

Document Type and Number:

WIPO Patent Application WO2004038910

Kind Code:

A3

Abstract:

A method for a predistortion linearization of a branched signal for a RF amplifier, comprising supplying a branched signal to at least one input terminal (2); distributing power of the input signal present on at least one input terminal (2) to a plurality of parallel branch-circuits (16, 18, 20) as a branched signals by a power distributing circuit (4); controlling a phase parameter and an amplitude parameter of the branched signals by at least one nonlinear branch-circuit (18, 20); controlling a phase parameter and an amplitude parameter of the branched signals by at least one linear branch-circuit (16); combining output branched signals of at least one nonlinear branch circuit (18, 20) with the output branched signals of at least one linear branch circuit (16) by a power combining circuit (12); providing an output branched signal of the power combining circuit (12) on at least one output terminal (14). Furthermore, a circuit for a predistortion unit linearizing a signal for a RF amplifier and a layout of a predistortion linearization of a signal for a RF amplifier are disclosed.

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Inventors:

BLEDNOV IGOR I (NL)

Application Number:

PCT/IB2003/004583

Publication Date:

July 01, 2004

Filing Date:

October 17, 2003

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