ATE503332T1 - Kalibrierung von amplituden- und phasenungleichgewicht sowie dc-offset eines analogen i/q-modulators bei einem hochfrequenzsender - Google Patents

Kalibrierung von amplituden- und phasenungleichgewicht sowie dc-offset eines analogen i/q-modulators bei einem hochfrequenzsender

Info

Publication number
ATE503332T1
ATE503332T1 AT05850855T AT05850855T ATE503332T1 AT E503332 T1 ATE503332 T1 AT E503332T1 AT 05850855 T AT05850855 T AT 05850855T AT 05850855 T AT05850855 T AT 05850855T AT E503332 T1 ATE503332 T1 AT E503332T1
Authority
AT
Austria
Prior art keywords
modulator
calibration
amplitude
analog
frequency transmitter
Prior art date
Application number
AT05850855T
Other languages
English (en)
Inventor
Andreas Bury
Original Assignee
Nxp Bv
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 Bv filed Critical Nxp Bv
Application granted granted Critical
Publication of ATE503332T1 publication Critical patent/ATE503332T1/de

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Amplitude Modulation (AREA)
AT05850855T 2004-12-16 2005-12-09 Kalibrierung von amplituden- und phasenungleichgewicht sowie dc-offset eines analogen i/q-modulators bei einem hochfrequenzsender ATE503332T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04106643 2004-12-16
PCT/IB2005/054157 WO2006064435A1 (en) 2004-12-16 2005-12-09 Calibrating amplitude and phase imbalance and dc offset of an analog i /q modulator in a high-frequency transmitter

Publications (1)

Publication Number Publication Date
ATE503332T1 true ATE503332T1 (de) 2011-04-15

Family

ID=36215777

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05850855T ATE503332T1 (de) 2004-12-16 2005-12-09 Kalibrierung von amplituden- und phasenungleichgewicht sowie dc-offset eines analogen i/q-modulators bei einem hochfrequenzsender

Country Status (7)

Country Link
US (1) US7734261B2 (de)
EP (1) EP1829314B8 (de)
JP (1) JP4580991B2 (de)
CN (1) CN101080911B (de)
AT (1) ATE503332T1 (de)
DE (1) DE602005027113D1 (de)
WO (1) WO2006064435A1 (de)

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CA2576778C (en) * 2006-02-07 2014-09-02 Xinping Huang Self-calibrating multi-port circuit and method
JP2010504678A (ja) * 2006-09-20 2010-02-12 エヌエックスピー ビー ヴィ 送信機のアナログｉ／ｑ変調器をキャリブレーションするための方法およびシステム
US7812827B2 (en) 2007-01-03 2010-10-12 Apple Inc. Simultaneous sensing arrangement
US8493331B2 (en) 2007-06-13 2013-07-23 Apple Inc. Touch detection using multiple simultaneous frequencies
US7953379B2 (en) * 2008-02-29 2011-05-31 Stmicroelectronics, S.R.L. Method and system for calibrating quadrature modulators
US7925228B2 (en) * 2008-02-29 2011-04-12 Stmicroelectronics, S.R.L. Method and system for calibrating quadrature modulators
TWI358910B (en) * 2008-03-25 2012-02-21 Mstar Semiconductor Inc Circuit and method of calibrating direct current o
EP2237413B1 (de) 2009-03-31 2013-05-08 Sony Corporation Kompensatoreinheit und Kompensationsverfahren für I/Q-Unsymmetriefehler
US9036650B2 (en) 2009-09-11 2015-05-19 Apple Inc. Automatic low noise frequency selection
JP2011188436A (ja) * 2010-03-11 2011-09-22 Advantest Corp 測定装置、測定方法およびプログラム
US9479203B2 (en) 2011-04-14 2016-10-25 Mediatek Inc. Transceiver capable of IQ mismatch compensation on the fly and method thereof
CN102437983B (zh) * 2011-10-27 2015-05-06 安徽省菲特科技股份有限公司 发射端i/q调制不平衡自校正方法及装置
US8965290B2 (en) * 2012-03-29 2015-02-24 General Electric Company Amplitude enhanced frequency modulation
US8873608B2 (en) * 2012-11-21 2014-10-28 Tektronix, Inc. Measurement of IQ imbalance in a vector modulator
US9025648B2 (en) * 2013-02-22 2015-05-05 Tektronix, Inc. Measurement of DC offsets in IQ modulators
JP5932689B2 (ja) * 2013-03-15 2016-06-08 パナソニック株式会社 送信装置
CN104580038B (zh) * 2014-12-30 2017-12-29 江苏中兴微通信息科技有限公司 一种自回环结构的收发联合iq失衡估计与补偿方法
TWI645687B (zh) * 2017-08-11 2018-12-21 瑞昱半導體股份有限公司 訊號收發裝置與其校正方法
KR102581896B1 (ko) * 2022-03-04 2023-09-21 국방과학연구소 주파수 도약 타이밍 오차 추정 장치 및 그 방법
CN115037320B (zh) * 2022-05-16 2023-08-08 杭州地芯科技有限公司 一种等效基带直流偏移的估计方法、装置以及发射机

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JPH05136836A (ja) * 1991-09-18 1993-06-01 Yokogawa Electric Corp デイジタル変調信号発生器
GB2313523B (en) * 1996-05-23 2000-06-07 Motorola Ltd Self-calibration apparatus and method for communication device
JP3349112B2 (ja) * 1998-08-13 2002-11-20 日本電気株式会社 オフセット調整方法およびオフセット調整装置
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
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DE602004025561D1 (de) * 2003-04-24 2010-04-01 Nxp Bv Quadraturmodulator und kalibrierungsverfahren dafür

Also Published As

Publication number Publication date
US20090270053A1 (en) 2009-10-29
CN101080911B (zh) 2011-12-14
US7734261B2 (en) 2010-06-08
EP1829314A1 (de) 2007-09-05
JP4580991B2 (ja) 2010-11-17
JP2008524900A (ja) 2008-07-10
CN101080911A (zh) 2007-11-28
EP1829314B8 (de) 2012-02-29
DE602005027113D1 (de) 2011-05-05
WO2006064435A1 (en) 2006-06-22
EP1829314B1 (de) 2011-03-23

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