DE69125901T2 - Kalibrierung von Vektormodulatoren - Google Patents

Kalibrierung von Vektormodulatoren

Info

Publication number
DE69125901T2
DE69125901T2 DE69125901T DE69125901T DE69125901T2 DE 69125901 T2 DE69125901 T2 DE 69125901T2 DE 69125901 T DE69125901 T DE 69125901T DE 69125901 T DE69125901 T DE 69125901T DE 69125901 T2 DE69125901 T2 DE 69125901T2
Authority
DE
Germany
Prior art keywords
calibration
vector modulators
modulators
vector
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69125901T
Other languages
English (en)
Other versions
DE69125901D1 (de
Inventor
Kari A Santos
James D Mcvey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agilent Technologies Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE69125901D1 publication Critical patent/DE69125901D1/de
Publication of DE69125901T2 publication Critical patent/DE69125901T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
    • H04L27/364—Arrangements for overcoming imperfections in the modulator, e.g. quadrature error or unbalanced I and Q levels
DE69125901T 1990-09-28 1991-09-16 Kalibrierung von Vektormodulatoren Expired - Fee Related DE69125901T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/590,576 US5119399A (en) 1990-09-28 1990-09-28 Quadrature measurement and calibration of a vector modulator

Publications (2)

Publication Number Publication Date
DE69125901D1 DE69125901D1 (de) 1997-06-05
DE69125901T2 true DE69125901T2 (de) 1997-12-04

Family

ID=24362796

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69125901T Expired - Fee Related DE69125901T2 (de) 1990-09-28 1991-09-16 Kalibrierung von Vektormodulatoren

Country Status (4)

Country Link
US (1) US5119399A (de)
EP (1) EP0477720B1 (de)
JP (1) JP3245195B2 (de)
DE (1) DE69125901T2 (de)

Cited By (1)

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DE10342583A1 (de) * 2003-09-15 2005-04-14 Infineon Technologies Ag Verfahren zur Trägerrestunterdrückung in einer einen Vektormodulator umfassenden Anordnung

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JPH05327808A (ja) * 1992-05-20 1993-12-10 Nec Corp 直交変調回路
JP3330171B2 (ja) * 1993-02-03 2002-09-30 三菱電機株式会社 直交変調器
JPH0758791A (ja) * 1993-08-10 1995-03-03 Nec Corp キャリアリーク低減回路
DE4420447C2 (de) * 1993-09-22 1998-07-30 Hewlett Packard Co Phasenschieberschaltung und Quadraturnetzwerk
US5396196A (en) * 1993-12-29 1995-03-07 At&T Corp. Quadrature modular with adaptive suppression of carrier leakage
US5995541A (en) * 1995-10-13 1999-11-30 Philips Electronics North America Corporation Method and apparatus for self-calibration and testing of ZPSK transmitter/receiver IC's
US5742201A (en) * 1996-01-30 1998-04-21 Spectrian Polar envelope correction mechanism for enhancing linearity of RF/microwave power amplifier
JP3175580B2 (ja) * 1996-03-14 2001-06-11 日本電気株式会社 直交位相変調器の調整装置
US6826169B1 (en) * 1996-12-20 2004-11-30 Fujitsu Limited Code multiplexing transmitting apparatus
US5937006A (en) * 1997-05-28 1999-08-10 The Aerospace Corporation Frequency translating device transmission response method
FR2785111B1 (fr) 1998-10-23 2004-08-20 St Microelectronics Sa Procede et systeme de reglage du niveau des raies parasites du spectre frequentiel de sortie d'un dispositif de transposition de frequence a bande laterale unique, en particulier incorpore dans un telephone mobile
KR20000039236A (ko) * 1998-12-11 2000-07-05 서평원 아이(i)/큐(q) 벡터 변조기
US6421397B1 (en) 2000-01-28 2002-07-16 Alcatel Canada Inc. Modulation system having on-line IQ calibration
US6421398B1 (en) 2000-01-28 2002-07-16 Alcatel Canada Inc. Modulation system having on-line IQ calibration
US6329805B1 (en) * 2000-02-29 2001-12-11 Roger B. Bracht Method for network analyzation and apparatus
US6362631B1 (en) * 2000-04-25 2002-03-26 Agilent Technologies, Inc. Method for characterizing delay of frequency translation devices
US7039382B2 (en) * 2001-05-15 2006-05-02 Broadcom Corporation DC offset calibration for a radio transceiver mixer
JP3712985B2 (ja) 2002-02-22 2005-11-02 アンリツ株式会社 直交変調器のキャリアリーク調整点検出方法、そのキャリアリーク調整方法、及び直交変調装置
EP1487123B1 (de) * 2002-04-23 2009-06-17 Fujitsu Limited Direktumsetzungsempfänger
US6700453B2 (en) 2002-06-18 2004-03-02 Nokia Corporation Amplitude imbalance compensation of quadrature modulator
US7415077B2 (en) 2002-07-29 2008-08-19 Infineon Technologies Ag Transmission arrangement, particularly for mobile radio
US7333557B2 (en) * 2002-12-16 2008-02-19 Nortel Networks Limited Adaptive controller for linearization of transmitter with impairments
US7251290B2 (en) * 2002-12-16 2007-07-31 Nortel Networks Limited Adaptive controller for linearization of transmitter
US6930563B2 (en) * 2003-04-18 2005-08-16 Tektronix, Inc Self-adjusting I-Q modulator system
US7369813B2 (en) 2003-05-14 2008-05-06 Telefonaktiebolaget L M Ericsson (Publ) Fast calibration of electronic components
US6894657B2 (en) * 2003-05-19 2005-05-17 Fidelity Comtech, Inc. Bi-directional vector modulator
US7376200B2 (en) * 2003-06-06 2008-05-20 Interdigital Technology Corporation Method and apparatus for suppressing carrier leakage
US7272196B2 (en) * 2003-06-30 2007-09-18 International Business Machines Corporation Adjustable phase controlled clock and data recovery circuit
EP1496610B1 (de) * 2003-07-07 2011-10-05 Imec Frequenzumsetzer unter Verwendung von Unterdrückung der Trägerselbstmischung
US7336931B2 (en) 2003-07-07 2008-02-26 Interuniversitair Microelektronica Centrum (Imec) Electrical device comprising analog frequency conversion circuitry and method for deriving characteristics thereof
JP4341418B2 (ja) * 2004-01-30 2009-10-07 日本電気株式会社 直交変調器の調整装置及び調整方法並びに通信装置とプログラム
WO2006035509A1 (en) * 2004-09-29 2006-04-06 Nec Corporation Error calculation circuit for mixer
DE102005037353A1 (de) * 2005-08-08 2007-02-15 Rohde & Schwarz Gmbh & Co. Kg Messvorrichtung, insbesondere vektorieller Netzwerkanalysator, mit Phasenregelung
US7796960B1 (en) 2006-04-04 2010-09-14 Nortel Networks Limited Signal transmitter linearization
US8995502B1 (en) 2006-04-04 2015-03-31 Apple Inc. Transceiver with spectral analysis
US8886341B1 (en) 2006-04-04 2014-11-11 Microsoft Corporation Adaptive sample-by-sample controller for under-determined systems
US8498590B1 (en) 2006-04-04 2013-07-30 Apple Inc. Signal transmitter linearization
KR100801871B1 (ko) * 2006-06-30 2008-02-11 지씨티 세미컨덕터 인코포레이티드 송신 반송파 누설 보상 방법 및 이를 이용하는 송수신 회로
US8224269B2 (en) * 2006-10-16 2012-07-17 Agilent Technologies, Inc. Vector modulator calibration system
US8014444B1 (en) * 2007-10-30 2011-09-06 Itt Manufacturing Enterprises, Inc. System and method for DC offset, amplitude and phase imbalance correction for I and Q baseband calibration
EP2148486A1 (de) * 2008-07-25 2010-01-27 STMicroelectronics N.V. Verfahren und System zur Bearbeitung von Unvollkommenheiten einer Funkfrequenzübertragungskette und Kommunikationsgerät, das eine solche Übertragungskette umfasst
US7969254B2 (en) * 2009-08-07 2011-06-28 National Instruments Corporation I/Q impairment calibration using a spectrum analyzer
CN101694986B (zh) * 2009-11-02 2012-07-04 中国电子科技集团公司第四十一研究所 一种基于模拟基带修正的矢量调制误差补偿方法
US20120294343A1 (en) * 2011-05-16 2012-11-22 Phase Matrix, Inc. RF I/Q Modulator with Sampling Calibration System
US10816655B2 (en) * 2016-12-07 2020-10-27 Texas Instruments Incorporated In-phase (I) and quadrature (Q) imbalance estimation in a radar system
US10862459B2 (en) 2018-11-01 2020-12-08 Analog Devices, Inc. Low-loss vector modulator based phase shifter

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US3842247A (en) * 1972-10-18 1974-10-15 Bell Telephone Labor Inc Apparatus and method for measuring envelope delay utilizing {90 -point technique
US4006418A (en) * 1975-05-14 1977-02-01 Raytheon Company Quaternary phase-shift keying with time delayed channel
US4258436A (en) * 1979-08-01 1981-03-24 The United States Of America As Represented By The Secretary Of The Navy Multichannel RF signal generator
US4449222A (en) * 1981-11-23 1984-05-15 Rockwell International Corporation Digital modulation quality monitor
US4717894A (en) * 1986-10-23 1988-01-05 Hewlett-Packard Company Calibration of vector modulators using a scalar detector
US4843351A (en) * 1987-08-28 1989-06-27 Hewlett-Packard Company Vector modulation signal generator
SE459774B (sv) * 1987-11-27 1989-07-31 Ericsson Telefon Ab L M Anordning foer kompensering av fel upptraednnde i e n kvadraturmodulator
US4816783A (en) * 1988-01-11 1989-03-28 Motorola, Inc. Method and apparatus for quadrature modulation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342583A1 (de) * 2003-09-15 2005-04-14 Infineon Technologies Ag Verfahren zur Trägerrestunterdrückung in einer einen Vektormodulator umfassenden Anordnung
DE10342583B4 (de) * 2003-09-15 2006-01-26 Infineon Technologies Ag Verfahren zur Trägerrestbestimmung in einer einen Vektormodulator umfassenden Anordnung

Also Published As

Publication number Publication date
EP0477720B1 (de) 1997-05-02
EP0477720A3 (en) 1993-03-24
JP3245195B2 (ja) 2002-01-07
JPH04248732A (ja) 1992-09-04
EP0477720A2 (de) 1992-04-01
US5119399A (en) 1992-06-02
DE69125901D1 (de) 1997-06-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AGILENT TECHNOLOGIES, INC. (N.D.GES.D.STAATES DELA

8327 Change in the person/name/address of the patent owner

Owner name: AGILENT TECHNOLOGIES, INC. (N.D.GES.D. STAATES, US

8339 Ceased/non-payment of the annual fee