AU2001233137A1 - Direct-conversion modulation with reduced local oscillator leakage - Google Patents

Direct-conversion modulation with reduced local oscillator leakage

Info

Publication number
AU2001233137A1
AU2001233137A1 AU2001233137A AU3313701A AU2001233137A1 AU 2001233137 A1 AU2001233137 A1 AU 2001233137A1 AU 2001233137 A AU2001233137 A AU 2001233137A AU 3313701 A AU3313701 A AU 3313701A AU 2001233137 A1 AU2001233137 A1 AU 2001233137A1
Authority
AU
Australia
Prior art keywords
direct
local oscillator
oscillator leakage
reduced local
conversion modulation
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.)
Abandoned
Application number
AU2001233137A
Inventor
Leonid Kazakevich
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.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology Corp
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 InterDigital Technology Corp filed Critical InterDigital Technology Corp
Publication of AU2001233137A1 publication Critical patent/AU2001233137A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Complex Calculations (AREA)
  • Networks Using Active Elements (AREA)
  • Superheterodyne Receivers (AREA)
AU2001233137A 2000-02-02 2001-01-31 Direct-conversion modulation with reduced local oscillator leakage Abandoned AU2001233137A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US17986100P 2000-02-02 2000-02-02
US60179861 2000-02-02
PCT/US2001/003041 WO2001058103A2 (en) 2000-02-02 2001-01-31 Kaskadenfrequenzumsetzer unter verwendung von phasenverschobenen signalen der lokalen oszillatoren

Publications (1)

Publication Number Publication Date
AU2001233137A1 true AU2001233137A1 (en) 2001-08-14

Family

ID=22658289

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001233137A Abandoned AU2001233137A1 (en) 2000-02-02 2001-01-31 Direct-conversion modulation with reduced local oscillator leakage

Country Status (6)

Country Link
US (1) US20010041546A1 (en)
EP (1) EP1258119A2 (en)
AU (1) AU2001233137A1 (en)
NO (1) NO20023665L (en)
TW (1) TW508901B (en)
WO (1) WO2001058103A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10142248A1 (en) * 2001-08-29 2003-01-30 Infineon Technologies Ag Transmission unit for mobile radio system with useful signal input
US6882834B1 (en) * 2002-04-26 2005-04-19 Analog Devices, Inc. Direct conversion receiver apparatus
KR20050055762A (en) * 2002-10-15 2005-06-13 시리픽 와이어레스 코퍼레이션 Dc trimming circuit for radio frequency (rf) down-conversion
WO2004062087A1 (en) * 2003-01-06 2004-07-22 Sirific Wireless Corporation Multi-mode modulator and transmitter
US7206557B2 (en) * 2003-01-08 2007-04-17 Lucent Technologies Inc. Method and apparatus for suppressing local oscillator leakage in a wireless transmitter
WO2004100354A1 (en) * 2003-05-07 2004-11-18 Koninklijke Philips Electronics N. V. Receiver front-end with low power consumption
US7480343B2 (en) * 2003-07-16 2009-01-20 Ericsson Technology Licensing Ab Transceiver architecture with reduced VCO-pulling sensitivity
KR100570712B1 (en) * 2004-05-17 2006-04-12 전자부품연구원 An n-th power of 2 sub-harmonic frequency modulator having a high carrier suppression ratio and a direct-conversion transmitter using thereof
US20090028216A1 (en) * 2007-07-26 2009-01-29 M/A-Com, Inc. Method and apparatus for generating a radio frequency pulse
US8331897B2 (en) * 2008-04-07 2012-12-11 Qualcomm Incorporated Highly linear embedded filtering passive mixer
US8238846B2 (en) * 2009-12-18 2012-08-07 Motorola Solutions, Inc. Multi carrier leakage tuning by error power detection
US8964892B2 (en) 2011-08-23 2015-02-24 Motorola Solutions, Inc. Apparatus and method for operating a transmitter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643966C2 (en) * 1976-09-29 1978-09-28 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for double frequency conversion for communication systems
CH671856A5 (en) * 1986-09-05 1989-09-29 Ascom Radiocom Ag
GB9017418D0 (en) * 1990-08-08 1990-09-19 Gen Electric Co Plc Half frequency mixer
US6144846A (en) * 1997-12-31 2000-11-07 Motorola, Inc. Frequency translation circuit and method of translating

Also Published As

Publication number Publication date
WO2001058103A3 (en) 2002-02-14
NO20023665L (en) 2002-09-06
EP1258119A2 (en) 2002-11-20
TW508901B (en) 2002-11-01
NO20023665D0 (en) 2002-08-01
WO2001058103A2 (en) 2001-08-09
US20010041546A1 (en) 2001-11-15

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