AU2002228748A1 - Iq modulator - Google Patents

Iq modulator

Info

Publication number
AU2002228748A1
AU2002228748A1 AU2002228748A AU2874802A AU2002228748A1 AU 2002228748 A1 AU2002228748 A1 AU 2002228748A1 AU 2002228748 A AU2002228748 A AU 2002228748A AU 2874802 A AU2874802 A AU 2874802A AU 2002228748 A1 AU2002228748 A1 AU 2002228748A1
Authority
AU
Australia
Prior art keywords
modulator
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
AU2002228748A
Inventor
Erik L. Bengtsson
Steven G. Cairns
William O. Camp Jr.
Charles Gore
Aristotle Hadjichristos
Scott R. Justice
M. Ali Khatibzadeh
David R. Pehlke
Jeffrey Schlang
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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
Priority claimed from US09/703,037 external-priority patent/US6975686B1/en
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of AU2002228748A1 publication Critical patent/AU2002228748A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0966—Modifications of modulator for regulating the mean frequency using a phase locked loop modulating the reference clock
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0975—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation in the phase locked loop at components other than the divider, the voltage controlled oscillator or the reference clock
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0983—Modifications of modulator for regulating the mean frequency using a phase locked loop containing in the loop a mixer other than for phase detection
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/336—A I/Q, i.e. phase quadrature, modulator or demodulator being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
AU2002228748A 2000-10-31 2001-10-24 Iq modulator Abandoned AU2002228748A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09/703,037 2000-10-31
US09/703,037 US6975686B1 (en) 2000-10-31 2000-10-31 IQ modulation systems and methods that use separate phase and amplitude signal paths
US09/746,823 US7072421B2 (en) 2000-10-31 2000-12-22 IQ modulation systems and methods that use separate phase and amplitude signal paths and perform modulation within a phase locked loop
US09/746,823 2000-12-22
PCT/US2001/046111 WO2002037666A2 (en) 2000-10-31 2001-10-24 Iq modulator

Publications (1)

Publication Number Publication Date
AU2002228748A1 true AU2002228748A1 (en) 2002-05-15

Family

ID=27107065

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002228748A Abandoned AU2002228748A1 (en) 2000-10-31 2001-10-24 Iq modulator

Country Status (4)

Country Link
EP (1) EP1368891B8 (en)
JP (2) JP4061193B2 (en)
AU (1) AU2002228748A1 (en)
WO (1) WO2002037666A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2389255B (en) * 2002-05-31 2005-08-31 Hitachi Ltd Apparatus for radio telecommunication system and method of building up output power
GB2416254B (en) 2002-05-31 2006-06-28 Renesas Tech Corp Semiconductor integrated circuit for communication, radio-communications apparatus, and transmission starting method
GB2389251B (en) 2002-05-31 2005-09-07 Hitachi Ltd A communication semiconductor integrated circuit, a wireless communication apparatus, and a loop gain calibration method
GB2389253B (en) * 2002-05-31 2005-09-21 Hitachi Ltd Transmitter and semiconductor integrated circuit for communication
US7145385B2 (en) 2003-12-05 2006-12-05 Telefonaktiebolaget Lm Ericsson (Publ) Single chip power amplifier and envelope modulator
US7409192B2 (en) 2005-07-21 2008-08-05 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for frequency synthesis in direct-conversion transmitters
EP2194684B1 (en) * 2007-09-26 2012-12-19 Fujitsu Limited Transmitter-receiver amplifier and method for compensating delay deviation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117589B (en) 1982-03-26 1985-10-16 Philips Electronic Associated Polar loop transmitter
JPH05218752A (en) * 1992-02-03 1993-08-27 Hitachi Ltd Linear power amplifier device
JPH0653920A (en) * 1992-07-31 1994-02-25 Kyocera Corp Automatic output controller for tdma transmitter
US5420536A (en) * 1993-03-16 1995-05-30 Victoria University Of Technology Linearized power amplifier
US5313173A (en) * 1993-04-26 1994-05-17 Ericsson Ge Mobile Communications Inc. Quadrature modulated phase-locked loop
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
DE19743275A1 (en) 1997-09-30 1999-04-08 Siemens Ag Transmitter for generating a high-frequency transmission signal
FI105609B (en) 1998-10-27 2000-09-15 Nokia Mobile Phones Ltd Method and arrangement for generating a transmission signal
JP2000286915A (en) * 1999-03-31 2000-10-13 Toshiba Corp Signal modulation circuit and method
GB2349994B (en) * 1999-05-10 2003-06-04 Intek Global Technologies Ltd Apparatus for producing a radio-frequency signal

Also Published As

Publication number Publication date
JP4061193B2 (en) 2008-03-12
EP1368891A2 (en) 2003-12-10
JP2004513551A (en) 2004-04-30
EP1368891B8 (en) 2014-02-19
EP1368891B1 (en) 2013-12-25
JP2008072735A (en) 2008-03-27
WO2002037666A3 (en) 2003-09-12
WO2002037666A2 (en) 2002-05-10
JP4634428B2 (en) 2011-02-16

Similar Documents

Publication Publication Date Title
AU3608199A (en) Qam modulator
AU2001288623A1 (en) Fxr modulators
AU2001262847A1 (en) Language-understanding
AU2002231325A1 (en) Stat modulators
AU2001292739A1 (en) 1-oxorapamycins
AU2001254546A1 (en) Aminopiperidines
AU2000267458A1 (en) Hypercomputer
AU2001239310A1 (en) Decahydro-isoquinolines
AU2001220246A1 (en) Neckphone
AU2001258349A1 (en) Bisacylguanidine
AU2001279754A1 (en) Indoloquinazolinones
AU2001285886A1 (en) 2-guanidino-4-aryl-quinazoline
AU2001290931A1 (en) Ski-snowboard
AU2001258924A1 (en) Microsatellite-aflp
AU2001293852A1 (en) Sulfonylguanidine
EP1368891B8 (en) Iq modulator
AU2001281921A1 (en) Bdellosomes
AU2001246864A1 (en) Hypotensors
AU2001291876A1 (en) Triazolo-epothilones
AU2001279610A1 (en) Bent electro-absorption modulator
AU4620300A (en) Can
AU2001284173A1 (en) Calycins
AU2001260192A1 (en) Glycinamides
AU2001226668A1 (en) Crankshaft-starter-generator
AU2001295713A1 (en) Blast-processing