WO2010026560A3 - Predistortion unit and method of predistorting signals - Google Patents

Predistortion unit and method of predistorting signals Download PDF

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Publication number
WO2010026560A3
WO2010026560A3 PCT/IB2009/053922 IB2009053922W WO2010026560A3 WO 2010026560 A3 WO2010026560 A3 WO 2010026560A3 IB 2009053922 W IB2009053922 W IB 2009053922W WO 2010026560 A3 WO2010026560 A3 WO 2010026560A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
predistortion unit
predistortion
nominal
amplitude
Prior art date
Application number
PCT/IB2009/053922
Other languages
French (fr)
Other versions
WO2010026560A2 (en
Inventor
Peter Bode
Ralf Burdenski
Roland Egon Ryter
Original Assignee
Nxp B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nxp B.V. filed Critical Nxp B.V.
Publication of WO2010026560A2 publication Critical patent/WO2010026560A2/en
Publication of WO2010026560A3 publication Critical patent/WO2010026560A3/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits

Abstract

A predistortion unit for a polar transmitter is provided, wherein the predistortion unit comprises a first amplitude modulation look up table memory storing a first set of data representing an amplitude predistortion function, and a first phase modulation look up table memory storing a second set of data representing a phase predistortion function, wherein the predistortion unit is adapted to predistort nominal amplitude signal and nominal phase signal of a signal by applying the first set of data to the nominal amplitude signal and the second set of data to the nominal phase signal.
PCT/IB2009/053922 2008-09-08 2009-09-08 Predistortion unit and method of predistorting signals WO2010026560A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08105264.9 2008-09-08
EP08105264 2008-09-08

Publications (2)

Publication Number Publication Date
WO2010026560A2 WO2010026560A2 (en) 2010-03-11
WO2010026560A3 true WO2010026560A3 (en) 2010-04-22

Family

ID=41412449

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/053922 WO2010026560A2 (en) 2008-09-08 2009-09-08 Predistortion unit and method of predistorting signals

Country Status (1)

Country Link
WO (1) WO2010026560A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050002470A1 (en) * 2003-07-03 2005-01-06 Icefyre Semiconductor Corporation Predistortion circuit for a transmit system
WO2005004323A1 (en) * 2003-07-03 2005-01-13 Icefyre Semiconductor Corporation Adaptive predistortion for a transmit system
US20050156662A1 (en) * 2004-01-16 2005-07-21 Arun Raghupathy Amplifier predistortion and autocalibration method and apparatus
US20060125560A1 (en) * 2003-07-03 2006-06-15 Aryan Saed Adaptive predistortion for a transmit system with gain, phase and delay adjustments
US20080096497A1 (en) * 2003-07-03 2008-04-24 Zarbana Digital Fund Llc Adaptive predistortion for a transmit system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050002470A1 (en) * 2003-07-03 2005-01-06 Icefyre Semiconductor Corporation Predistortion circuit for a transmit system
WO2005004323A1 (en) * 2003-07-03 2005-01-13 Icefyre Semiconductor Corporation Adaptive predistortion for a transmit system
US20060125560A1 (en) * 2003-07-03 2006-06-15 Aryan Saed Adaptive predistortion for a transmit system with gain, phase and delay adjustments
US20080096497A1 (en) * 2003-07-03 2008-04-24 Zarbana Digital Fund Llc Adaptive predistortion for a transmit system
US20050156662A1 (en) * 2004-01-16 2005-07-21 Arun Raghupathy Amplifier predistortion and autocalibration method and apparatus

Also Published As

Publication number Publication date
WO2010026560A2 (en) 2010-03-11

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