WO2003001659A3 - Intermodulation product cancellation circuit - Google Patents

Intermodulation product cancellation circuit Download PDF

Info

Publication number
WO2003001659A3
WO2003001659A3 PCT/US2002/019866 US0219866W WO03001659A3 WO 2003001659 A3 WO2003001659 A3 WO 2003001659A3 US 0219866 W US0219866 W US 0219866W WO 03001659 A3 WO03001659 A3 WO 03001659A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
processor
cancellation
product
cancellation circuit
Prior art date
Application number
PCT/US2002/019866
Other languages
French (fr)
Other versions
WO2003001659A2 (en
Inventor
Eugene Rzyski
Original Assignee
Eugene Rzyski
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 Eugene Rzyski filed Critical Eugene Rzyski
Priority to KR10-2003-7016734A priority Critical patent/KR20040030000A/en
Priority to AU2002318391A priority patent/AU2002318391A1/en
Priority to JP2003507942A priority patent/JP2005518686A/en
Priority to EP02747949A priority patent/EP1529339A2/en
Publication of WO2003001659A2 publication Critical patent/WO2003001659A2/en
Publication of WO2003001659A3 publication Critical patent/WO2003001659A3/en

Links

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
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • 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
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Noise Elimination (AREA)
  • Transmitters (AREA)

Abstract

A cancellation circuit (800) is provided for canceling undesirable intermodulation (IM) products in electrical circuitry. The IM cancellation circuit (800) includes a stepping spectrum analyzer (9) which recognizes and measure the frequencies and amplitudes of different signal components of an RF signal across a desired frequency band. This information is forwarded to a processor (11) which contains look-up tables or the like which provides information relating to the frequencies and/or amplitudes of signal components which are intended to reside in the RF signal. By comparison of the look-up tables to the frequencies and amplitudes measured and recognized by the sweeping spectrum analyzer (9), the processor (11) of the cancellation circuit is able to determine whether the signal components in the RF signal are intended “information” carrying signals or unintended IM products. Where the processor (11) has determined that a signal component is an unintended IM product, the processor (11) controls a variable voltage controlled oscillator and variable amplifier to create a cancellation signal having an identical frequency and amplitude as the frequency and amplitude of the IM product. A phase shifter (17) is provided to shift the phase of the cancellation signal 180 degrees with respect to the IM product and the cancellation signal is combined with the RF signal to produce an output signal (29) having the IM product cancelled.
PCT/US2002/019866 2001-06-21 2002-06-21 Intermodulation product cancellation circuit WO2003001659A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR10-2003-7016734A KR20040030000A (en) 2001-06-21 2002-06-21 Intermodulation product cancellation circuit
AU2002318391A AU2002318391A1 (en) 2001-06-21 2002-06-21 Intermodulation product cancellation circuit
JP2003507942A JP2005518686A (en) 2001-06-21 2002-06-21 Intermodulation product cancellation circuit
EP02747949A EP1529339A2 (en) 2001-06-21 2002-06-21 Intermodulation product cancellation circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/886,939 2001-06-21
US09/886,939 US6496064B2 (en) 2000-08-15 2001-06-21 Intermodulation product cancellation circuit

Publications (2)

Publication Number Publication Date
WO2003001659A2 WO2003001659A2 (en) 2003-01-03
WO2003001659A3 true WO2003001659A3 (en) 2005-03-17

Family

ID=25390114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/019866 WO2003001659A2 (en) 2001-06-21 2002-06-21 Intermodulation product cancellation circuit

Country Status (6)

Country Link
US (1) US6496064B2 (en)
EP (1) EP1529339A2 (en)
JP (1) JP2005518686A (en)
KR (2) KR100973099B1 (en)
AU (1) AU2002318391A1 (en)
WO (1) WO2003001659A2 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6756844B2 (en) * 2001-08-07 2004-06-29 Hitachi Kokusai Electric Inc. Distortion compensation amplification apparatus of feed forward type and adaptive pre-distortion type
AU2003228318A1 (en) * 2002-03-18 2003-10-08 Ems Technologies, Inc. Passive intermodulation interference control circuits
US6944427B2 (en) * 2003-01-31 2005-09-13 Motorola, Inc. Reduced crossmodulation operation of a multimode communication device
US7126421B2 (en) * 2003-09-23 2006-10-24 Powerwave Technologies, Inc. Method for aligning feed forward loops
US7197291B2 (en) * 2003-10-03 2007-03-27 Motorola, Inc. Multimode receiver and method for controlling signal interference
US7023273B2 (en) * 2003-10-06 2006-04-04 Andrew Corporation Architecture and implementation methods of digital predistortion circuitry
US7257383B2 (en) * 2004-03-08 2007-08-14 Broadcom Corporation Method and system for improving dynamic range for communication systems using upstream analog information
US8965727B2 (en) * 2005-05-20 2015-02-24 Omniphase Research Laboratories, Inc. Intelligent low noise design
US7693674B2 (en) * 2005-05-20 2010-04-06 Omniphase Research Laboratories, Inc. Low-noise source
US8243773B2 (en) * 2006-05-26 2012-08-14 Itron, Inc. Clear-channel system and related applications
KR100817511B1 (en) * 2006-12-29 2008-03-27 송두희 Method for detecting rf signal variation quantity of the rf sensor and its system
KR20090115729A (en) * 2007-01-17 2009-11-05 옴니페이즈 리서치 라보라토리스, 인크. Automated noise measurement system
US8275151B2 (en) * 2007-12-19 2012-09-25 Agere Systems Inc. Speakerphone using adaptive phase rotation
GB0724917D0 (en) * 2007-12-20 2008-01-30 Nokia Corp A transmitter
DE102008052172B4 (en) 2008-10-17 2014-01-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device for generating a correction signal
US8320868B2 (en) * 2010-02-11 2012-11-27 Mediatek Singapore Pte. Ltd. Integrated circuits, communication units and methods of cancellation of intermodulation distortion
US8320866B2 (en) * 2010-02-11 2012-11-27 Mediatek Singapore Pte. Ltd. Integrated circuits, communication units and methods of cancellation of intermodulation distortion
JP5355503B2 (en) * 2010-06-14 2013-11-27 日本電信電話株式会社 Gain control method and apparatus
WO2012050001A1 (en) 2010-10-12 2012-04-19 新日鐵化学株式会社 Chalcogen-containing aromatic compound, organic semiconductor material, and organic electronic device
US8547275B2 (en) 2010-11-29 2013-10-01 Src, Inc. Active electronically scanned array antenna for hemispherical scan coverage
US8995944B2 (en) 2010-12-09 2015-03-31 Rf Micro Devices, Inc. Radio frequency switch for suppressing intermodulation
US8706070B2 (en) * 2011-03-15 2014-04-22 Rf Micro Devices, Inc. RF system for reducing intermodulation (IM) products
US8917792B2 (en) * 2012-12-12 2014-12-23 Motorola Mobility Llc Method and apparatus for the cancellation of intermodulation and harmonic distortion in a baseband receiver
US9077363B2 (en) 2013-12-03 2015-07-07 Analog Devices, Inc. Stochastic encoding in analog to digital conversion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367457A2 (en) * 1988-10-31 1990-05-09 AT&T Corp. A feed forward linear amplifier
US5119040A (en) * 1991-01-04 1992-06-02 Motorola, Inc. Method and apparatus for optimizing the performance of a power amplifier circuit
GB2318938A (en) * 1996-11-04 1998-05-06 Samsung Electronics Co Ltd Amplifier with feedforward and predistortion linearization
US6172564B1 (en) * 1999-07-30 2001-01-09 Eugene Rzyski Intermodulation product cancellation circuit

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268802A (en) 1979-05-23 1981-05-19 Fisher Charles B Modulation distortion reducer
US4580105A (en) 1985-01-25 1986-04-01 At&T Bell Laboratories Automatic reduction of intermodulation products in high power linear amplifiers
JPS6380626A (en) 1986-09-24 1988-04-11 Yamaha Corp Digital/analog converter
US5524281A (en) 1988-03-31 1996-06-04 Wiltron Company Apparatus and method for measuring the phase and magnitude of microwave signals
US4926134A (en) 1988-12-29 1990-05-15 Westinghouse Electric Corp. Gain monitoring of distortion cancellation amplifiers in a feedforward linear amplifier
US4992754B1 (en) 1989-09-07 1997-10-28 Ortel Corp Predistorter for linearization of electronic and optical signals
GB2238195A (en) 1989-11-16 1991-05-22 Motorola Inc Feed forward amplifier with pilot tone cancellation
US5023565A (en) 1990-01-26 1991-06-11 At&T Bell Laboratories Linear amplifier with automatic adjustment of feed forward loop gain and phase
GB9009295D0 (en) 1990-04-25 1990-06-20 Kenington Peter B Apparatus and method for reducing distortion in amplification
US5334946A (en) 1990-04-25 1994-08-02 British Technology Group Limited Apparatus and method for reducing distortion in amplification
US5077532A (en) 1990-12-17 1991-12-31 Motorola, Inc. Feed forward distortion minimization circuit
US5459680A (en) 1993-10-20 1995-10-17 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for spur-reduced digital sinusoid synthesis
US5365187A (en) 1993-10-29 1994-11-15 Hewlett-Packard Company Power amplifier utilizing the vector addition of two constant envelope carriers
US5485120A (en) * 1994-07-28 1996-01-16 Aval Communications Inc. Feed-forward power amplifier system with adaptive control and control method
US5455537A (en) 1994-08-19 1995-10-03 Radio Frequency Systems, Inc. Feed forward amplifier
US5528196A (en) 1995-01-06 1996-06-18 Spectrian, Inc. Linear RF amplifier having reduced intermodulation distortion
US5619168A (en) 1995-08-07 1997-04-08 Lucent Technologies Inc. Distortion creation and reduction circuit
EP0762630A1 (en) 1995-09-08 1997-03-12 AT&T IPM Corp. Low distortion amplifier circuit with improved output power
US5758275A (en) 1995-09-29 1998-05-26 Motorola, Inc. Method and apparatus for scheduling adaptation for a notch filter
US5623227A (en) 1995-10-17 1997-04-22 Motorola, Inc. Amplifier circuit and method of controlling an amplifier for use in a radio frequency communication system
US5621354A (en) 1995-10-17 1997-04-15 Motorola, Inc. Apparatus and method for performing error corrected amplification in a radio frequency system
US5742201A (en) 1996-01-30 1998-04-21 Spectrian Polar envelope correction mechanism for enhancing linearity of RF/microwave power amplifier
US5903819A (en) 1996-03-13 1999-05-11 Ericsson Inc. Noise suppressor circuit and associated method for suppressing periodic interference component portions of a communication signal
US5892397A (en) 1996-03-29 1999-04-06 Spectrian Adaptive compensation of RF amplifier distortion by injecting predistortion signal derived from respectively different functions of input signal amplitude
JP3297307B2 (en) 1996-06-14 2002-07-02 沖電気工業株式会社 Background noise canceller
US5808512A (en) 1997-01-31 1998-09-15 Ophir Rf, Inc. Feed forward amplifiers and methods
US5994957A (en) 1997-12-19 1999-11-30 Lucent Technologies Inc. Feed forward amplifier improvement
US5886573A (en) 1998-03-06 1999-03-23 Fujant, Inc. Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier
US6208207B1 (en) * 1999-05-05 2001-03-27 Simon Fraser University Adaptive linearizer for RF power amplifiers
US6392481B1 (en) * 1999-11-30 2002-05-21 Nokia Networks Oy Method and apparatus for improved fed forward amplification

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367457A2 (en) * 1988-10-31 1990-05-09 AT&T Corp. A feed forward linear amplifier
US5119040A (en) * 1991-01-04 1992-06-02 Motorola, Inc. Method and apparatus for optimizing the performance of a power amplifier circuit
GB2318938A (en) * 1996-11-04 1998-05-06 Samsung Electronics Co Ltd Amplifier with feedforward and predistortion linearization
US6172564B1 (en) * 1999-07-30 2001-01-09 Eugene Rzyski Intermodulation product cancellation circuit

Also Published As

Publication number Publication date
JP2005518686A (en) 2005-06-23
AU2002318391A1 (en) 2003-01-08
WO2003001659A2 (en) 2003-01-03
US20020070803A1 (en) 2002-06-13
KR20090051128A (en) 2009-05-20
US6496064B2 (en) 2002-12-17
KR100973099B1 (en) 2010-07-29
EP1529339A2 (en) 2005-05-11
KR20040030000A (en) 2004-04-08

Similar Documents

Publication Publication Date Title
WO2003001659A3 (en) Intermodulation product cancellation circuit
MXPA02001044A (en) Intermodulation product cancellation circuit.
EP1620940B1 (en) Quadrature modulator and calibration method
US7330517B2 (en) Amplifier linearization using non-linear predistortion
EP2343560A3 (en) High frequency circuit analyser
DK2035840T3 (en) Method of Operating a Device for Determining Operating Parameters for a High Frequency Performance Amplifier
EP1819038A4 (en) Signal take-out circuit and distortion compensation amplifier comprising it
EP1358713A1 (en) Cmos power amplifier with reduced harmonics and improved efficiency
TW331681B (en) Wide-band low-noise low-crossover distortion receiver
GB2245115A (en) Measuring distortion
KR20000023530A (en) Double side band pilot technique for a control system that reduces distortion produced by electrical circuits
Lin et al. A digital leakage cancellation scheme for monostatic FMCW radar
Kuo et al. A 60-GHz CMOS direct-conversion Doppler radar RF sensor with clutter canceller for single-antenna noncontact human vital-signs detection
US7042960B2 (en) Low order spur cancellation mixer topologies
WO2009080776A3 (en) Signal processing circuit and method with frequency up- and down-conversion
AU750671B2 (en) Frequency hop pilot technique for a control system that reduces distortion produced by electrical circuits
TW200501743A (en) High frequency signal receiving device
Watson et al. Frequency downconversion and phase noise in MIT
Henderson Mixers: Part 1 Characteristics and Performance
US7146149B1 (en) High isolation switch buffer for frequency hopping radios
JPS5631235A (en) Active antenna system
Rahkonen et al. A programmable analog polynomial predistortion circuit for linearising radio transmitters
Siligaris et al. Fast Chirping 58-64 GHz FMCW Radar Transceiver using D-PROT Multiplier in CMOS 45nm RFSOI for Vital Signs Detection
CA2460299A1 (en) Amplitude and phase modulation using dual digital delay vectors
JPH0760976B2 (en) Signal suppressor

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2003507942

Country of ref document: JP

Ref document number: 1020037016734

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2004107493

Country of ref document: RU

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2002747949

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 2002747949

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1020097009154

Country of ref document: KR