DE60037540D1 - Modulator mit geringer empfindlichkeit bei amplituden- und phasenfehlern vom trägersignal - Google Patents

Modulator mit geringer empfindlichkeit bei amplituden- und phasenfehlern vom trägersignal

Info

Publication number
DE60037540D1
DE60037540D1 DE60037540T DE60037540T DE60037540D1 DE 60037540 D1 DE60037540 D1 DE 60037540D1 DE 60037540 T DE60037540 T DE 60037540T DE 60037540 T DE60037540 T DE 60037540T DE 60037540 D1 DE60037540 D1 DE 60037540D1
Authority
DE
Germany
Prior art keywords
signal
summer
receives
modulation
carrier signal
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 - Lifetime
Application number
DE60037540T
Other languages
English (en)
Other versions
DE60037540T2 (de
Inventor
Kamal Gurkanwal Sahota
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.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of DE60037540D1 publication Critical patent/DE60037540D1/de
Publication of DE60037540T2 publication Critical patent/DE60037540T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1433—Balanced arrangements with transistors using bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1441—Balanced arrangements with transistors using field-effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1458—Double balanced arrangements, i.e. where both input signals are differential
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0016—Stabilisation of local oscillators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplitude Modulation (AREA)
  • Transmitters (AREA)
DE60037540T 2000-11-03 2000-11-03 Modulator mit geringer empfindlichkeit bei amplituden- und phasenfehlern vom trägersignal Expired - Lifetime DE60037540T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/030406 WO2002037787A1 (en) 2000-11-03 2000-11-03 Modulator with low sensitivity to amplitude and phase errors of the carrier signal

Publications (2)

Publication Number Publication Date
DE60037540D1 true DE60037540D1 (de) 2008-01-31
DE60037540T2 DE60037540T2 (de) 2008-12-24

Family

ID=21741963

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60037540T Expired - Lifetime DE60037540T2 (de) 2000-11-03 2000-11-03 Modulator mit geringer empfindlichkeit bei amplituden- und phasenfehlern vom trägersignal
DE60045454T Expired - Lifetime DE60045454D1 (de) 2000-11-03 2000-11-03 Modulator mit geringer Anfälligkeit für Amplituden- und Phasenfehler des Trägersignals

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE60045454T Expired - Lifetime DE60045454D1 (de) 2000-11-03 2000-11-03 Modulator mit geringer Anfälligkeit für Amplituden- und Phasenfehler des Trägersignals

Country Status (9)

Country Link
EP (2) EP1330905B1 (de)
JP (1) JP4708674B2 (de)
KR (1) KR100715080B1 (de)
CN (1) CN1235378C (de)
AT (2) ATE493820T1 (de)
AU (1) AU2001214630A1 (de)
DE (2) DE60037540T2 (de)
HK (1) HK1063546A1 (de)
WO (1) WO2002037787A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6983024B2 (en) * 2003-03-18 2006-01-03 Qualcomm Inc. Quadra-polar modulator
US20090036064A1 (en) * 2007-07-31 2009-02-05 Ashoke Ravi Digital integrated transmitter based on four-path phase modulation
EP2146427A1 (de) * 2008-07-07 2010-01-20 Nxp B.V. Digitaler Modulator
IT1395091B1 (it) * 2009-04-10 2012-09-05 Siae Microelettronica Spa Metodo e relativo dispositivo di elaborazione di segnali digitali per la modulazione di ampiezza in quadratura
JP5440022B2 (ja) * 2009-08-24 2014-03-12 ソニー株式会社 復調器
KR101454802B1 (ko) * 2010-10-22 2014-11-03 한국전자통신연구원 비동기식 파이프라인 시스템, 스테이지 및 데이터 전송 방법
EP2901549B1 (de) 2012-09-28 2018-07-25 ViaSat Inc. Breitband doppelgegentaktmischer mit spiegelfrequenzunterdrückung
EP3025424B1 (de) 2013-07-22 2017-07-12 Telefonaktiebolaget LM Ericsson (publ) Frequenzwandler
US9088471B1 (en) * 2014-02-19 2015-07-21 Qualcomm Incorporated Quadrature combining and adjusting
US9628318B1 (en) * 2016-04-26 2017-04-18 Tm Ip Holdings, Llc Transpositional modulation communications
CN106817136B (zh) * 2017-02-21 2022-09-16 和芯星通科技(北京)有限公司 一种实现正交信号处理的方法、装置及接收机

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761798A (en) * 1987-04-02 1988-08-02 Itt Aerospace Optical Baseband phase modulator apparatus employing digital techniques
US5111155A (en) * 1991-03-04 1992-05-05 Motorola, Inc. Distortion compensation means and method
US5412351A (en) 1993-10-07 1995-05-02 Nystrom; Christian Quadrature local oscillator network
US5511236A (en) * 1993-12-07 1996-04-23 National Semiconductor Corporation Half duplex RF transceiver
US5438301A (en) 1994-07-25 1995-08-01 At&T Corp. Modem having a phase corrector and a voltage controlled oscillator implemented using a multi-stage ring oscillator
JP3115821B2 (ja) * 1995-04-14 2000-12-11 エイ・ティ・アンド・ティ・コーポレーション 変調回路
FR2739239B1 (fr) 1995-09-27 1997-11-14 Alcatel Telspace Dispositif de correction d'un defaut de quadrature d'un modulateur en quadrature et/ou d'un demodulateur d'un signal a pluralite d'etats de phase, emetteur et recepteur correspondants
US6240142B1 (en) * 1998-01-07 2001-05-29 Qualcomm Incorporated Quadrature modulator and demodulator
DE19934215C1 (de) * 1999-07-21 2001-03-29 Rohde & Schwarz Quadraturmischer mit adaptiver Fehlerkompensation
DE10012003A1 (de) * 2000-03-11 2001-09-13 Philips Corp Intellectual Pty Sender und Verfahren zum Erzeugen eines Sendesignals

Also Published As

Publication number Publication date
EP1876703A3 (de) 2008-04-02
ATE381838T1 (de) 2008-01-15
DE60037540T2 (de) 2008-12-24
KR20030051779A (ko) 2003-06-25
KR100715080B1 (ko) 2007-05-07
JP4708674B2 (ja) 2011-06-22
EP1876703A2 (de) 2008-01-09
CN1235378C (zh) 2006-01-04
ATE493820T1 (de) 2011-01-15
HK1063546A1 (en) 2004-12-31
EP1330905B1 (de) 2007-12-19
DE60045454D1 (de) 2011-02-10
EP1330905A1 (de) 2003-07-30
WO2002037787A1 (en) 2002-05-10
EP1876703B1 (de) 2010-12-29
JP2004527927A (ja) 2004-09-09
AU2001214630A1 (en) 2002-05-15
CN1488221A (zh) 2004-04-07

Similar Documents

Publication Publication Date Title
DE60037540D1 (de) Modulator mit geringer empfindlichkeit bei amplituden- und phasenfehlern vom trägersignal
ATE122517T1 (de) Vorrichtung und verfahren zur modulierung in quadratur.
NO20080846L (no) Demodulering av fasemodulerte signaler i et fiberoptisk folersystem
IN266720B (de)
DE602005015630D1 (de) Polarsender mit digital-zu-hf-umsetzer
MY110112A (en) Apparatus for compensating of phase rotation in a final amplifier stage
BR9906790A (pt) Modular e demodulador de quadratura
CA2237215A1 (en) Method and apparatus of stabilizing a semiconductor laser
AU2777184A (en) Quadrature mixer
JPS6466582A (en) System for detecting propagation time of transmission line
FR2844412B1 (fr) Procede et dispositif de modulation d'une porteuse avec compensation d'erreur d'amplitude et de phase
KR960016167A (ko) 가변 중간 주파수(if) 송신기 장치
US8531251B2 (en) Through-zero pulse-width modulation process with period-average-zero
CA2080786A1 (en) Vector fm modulator
DE59307542D1 (de) Verfahren und Vorrichtung zur Korrektur von DC-Anteilen bei direktmischenden Empfangseinrichtungen
NO975224L (no) Estimeringskrets for kvadraturmodulasjonsfeil, og modulatortrinn med slik krets
DE60034305D1 (de) Amplitudenmodulator
WO2004034079A3 (en) Inspection system calibration methods
DE59507598D1 (de) Phasendetektor für die Steuerung der Rückgewinnung eines Trägersignals
CA2192038A1 (en) Demodulator circuit for a signal with frequency modulated about an intermediate frequency
Cao et al. An analysis and optimization on the sideband and carrier leakage of direct quadrature up-converter.
TR200101981T1 (tr) Amplitüd modülasyonlu bir sinyalin demodülasyonu için cihaz
TW370740B (en) Electrical interferometric signal generator
JPH0314853U (de)
FR2652210B1 (fr) Circuit de modulation en phase et en amplitude.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition