HK1063546A1 - Modulator with low sensitivity to amplitude and phase errors of the carrier signal - Google Patents

Modulator with low sensitivity to amplitude and phase errors of the carrier signal

Info

Publication number
HK1063546A1
HK1063546A1 HK04106142A HK04106142A HK1063546A1 HK 1063546 A1 HK1063546 A1 HK 1063546A1 HK 04106142 A HK04106142 A HK 04106142A HK 04106142 A HK04106142 A HK 04106142A HK 1063546 A1 HK1063546 A1 HK 1063546A1
Authority
HK
Hong Kong
Prior art keywords
signal
summer
receives
modulation
carrier signal
Prior art date
Application number
HK04106142A
Other languages
English (en)
Inventor
Kamal Gurkanwal Sahota
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
Publication of HK1063546A1 publication Critical patent/HK1063546A1/xx

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
    • 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)
HK04106142A 2000-11-03 2004-08-17 Modulator with low sensitivity to amplitude and phase errors of the carrier signal HK1063546A1 (en)

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 (1)

Publication Number Publication Date
HK1063546A1 true HK1063546A1 (en) 2004-12-31

Family

ID=21741963

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04106142A HK1063546A1 (en) 2000-11-03 2004-08-17 Modulator with low sensitivity to amplitude and phase errors of the carrier signal

Country Status (9)

Country Link
EP (2) EP1876703B1 (xx)
JP (1) JP4708674B2 (xx)
KR (1) KR100715080B1 (xx)
CN (1) CN1235378C (xx)
AT (2) ATE493820T1 (xx)
AU (1) AU2001214630A1 (xx)
DE (2) DE60045454D1 (xx)
HK (1) HK1063546A1 (xx)
WO (1) WO2002037787A1 (xx)

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 (en) * 2008-07-07 2010-01-20 Nxp B.V. Digital 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
WO2014052943A1 (en) 2012-09-28 2014-04-03 Viasat, Inc. Wideband double balanced image reject mixer
US9906152B2 (en) 2013-07-22 2018-02-27 Telefonaktiebolaget L M Ericsson (Publ) Frequency converter
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
ATE493820T1 (de) 2011-01-15
EP1876703B1 (en) 2010-12-29
JP2004527927A (ja) 2004-09-09
AU2001214630A1 (en) 2002-05-15
WO2002037787A1 (en) 2002-05-10
DE60037540D1 (de) 2008-01-31
KR100715080B1 (ko) 2007-05-07
KR20030051779A (ko) 2003-06-25
EP1330905A1 (en) 2003-07-30
EP1330905B1 (en) 2007-12-19
DE60037540T2 (de) 2008-12-24
EP1876703A2 (en) 2008-01-09
ATE381838T1 (de) 2008-01-15
JP4708674B2 (ja) 2011-06-22
CN1488221A (zh) 2004-04-07
CN1235378C (zh) 2006-01-04
DE60045454D1 (de) 2011-02-10
EP1876703A3 (en) 2008-04-02

Similar Documents

Publication Publication Date Title
HK1063546A1 (en) Modulator with low sensitivity to amplitude and phase errors of the carrier signal
SE9901238D0 (sv) Dual-mode radiotelephone apparatus for digital or analog modulation
EP2278703A3 (en) Pseudo-polar modulator for radio transmitters
DE3853782D1 (de) Vorrichtung und verfahren zur modulierung in quadratur.
TW200507553A (en) Quadra-polar modulator
DE602005015630D1 (de) Polarsender mit digital-zu-hf-umsetzer
IN266720B (xx)
MY110112A (en) Apparatus for compensating of phase rotation in a final amplifier stage
CA2237215A1 (en) Method and apparatus of stabilizing a semiconductor laser
SE9001305D0 (sv) Kvadraturmodulator
NO20080846L (no) Demodulering av fasemodulerte signaler i et fiberoptisk folersystem
AU573139B2 (en) Quadrature mixer
JPS6466582A (en) System for detecting propagation time of transmission line
KR960020130A (ko) 송수신 장치
US8797112B2 (en) Modulator, mixer and method for amplitude shift keying modulation
WO2006000088A3 (en) Transmit signal generator and method
CA2080786A1 (en) Vector fm modulator
DE59307542D1 (de) Verfahren und Vorrichtung zur Korrektur von DC-Anteilen bei direktmischenden Empfangseinrichtungen
ATE359616T1 (de) Amplitudenmodulator
WO2002037666A3 (en) Iq modulator
WO2003017507A3 (en) Transmitter apparatus and methods using frequency doubling modulation
AU2003257350A1 (en) Modulation and demodulation of a combination of analog and digital signals
WO2004034079A3 (en) Inspection system calibration methods
CA2192038A1 (en) Demodulator circuit for a signal with frequency modulated about an intermediate frequency
EP1096670A3 (en) System and method for transmitting digital information using interleaved delta modulation

Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20111103