WO2004036737A3 - Transmitter - Google Patents

Transmitter Download PDF

Info

Publication number
WO2004036737A3
WO2004036737A3 PCT/US2003/031786 US0331786W WO2004036737A3 WO 2004036737 A3 WO2004036737 A3 WO 2004036737A3 US 0331786 W US0331786 W US 0331786W WO 2004036737 A3 WO2004036737 A3 WO 2004036737A3
Authority
WO
WIPO (PCT)
Prior art keywords
signals
modified signal
regulating
characteristic
input wave
Prior art date
Application number
PCT/US2003/031786
Other languages
French (fr)
Other versions
WO2004036737A2 (en
Inventor
Walid Khairy Mohamed Ahmed
Original Assignee
Ma Com 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
Priority claimed from US10/606,080 external-priority patent/US7751496B2/en
Application filed by Ma Com Inc filed Critical Ma Com Inc
Priority to AU2003279177A priority Critical patent/AU2003279177A1/en
Publication of WO2004036737A2 publication Critical patent/WO2004036737A2/en
Publication of WO2004036737A3 publication Critical patent/WO2004036737A3/en

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
    • H04L27/361—Modulation using a single or unspecified number of carriers, e.g. with separate stages of phase and amplitude modulation
    • 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
    • H03C—MODULATION
    • H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal

Abstract

The invention relates to a system for electromagnetic processing of an input wave involving the steps of receiving a modified signal derived from two or more signals that represent the input wave when combined; and regulating the modified signal using a digital signal containing at least one characteristic of the two or more signals. Embodiments of the invention may utilize in-phase and quadrature phase signals, where the magnitude portion of the signals may be used for regulating the modified signal. The modified signal may be created by modulating a characteristic of the I, Q signals, such as their sign, with an RF or other frequency carrier wave.
PCT/US2003/031786 2002-10-08 2003-10-07 Transmitter WO2004036737A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003279177A AU2003279177A1 (en) 2002-10-08 2003-10-07 Transmitter

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US41686102P 2002-10-08 2002-10-08
US60/416,861 2002-10-08
US10/606,080 US7751496B2 (en) 2003-06-25 2003-06-25 Electromagnetic wave transmitter, receiver and transceiver systems, methods and articles of manufacture
US10/606,080 2003-06-25

Publications (2)

Publication Number Publication Date
WO2004036737A2 WO2004036737A2 (en) 2004-04-29
WO2004036737A3 true WO2004036737A3 (en) 2004-06-24

Family

ID=32110138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/031786 WO2004036737A2 (en) 2002-10-08 2003-10-07 Transmitter

Country Status (2)

Country Link
AU (1) AU2003279177A1 (en)
WO (1) WO2004036737A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7190290B2 (en) * 2004-08-24 2007-03-13 M/A-Com, Eurotec B.V. Method and apparatus for addressing receive band noise problems associated with the use of a digital power amplifier
US8884714B2 (en) 2005-12-22 2014-11-11 Pine Valley Investments, Inc. Apparatus, system, and method for digital base modulation of power amplifier in polar transmitter
WO2007122562A2 (en) * 2006-04-21 2007-11-01 Nxp B.V. A modulator for amplitude-modulating a signal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5420536A (en) * 1993-03-16 1995-05-30 Victoria University Of Technology Linearized power amplifier
EP1035701A1 (en) * 1999-03-08 2000-09-13 Motorola, Inc. Modulator using envelope elimination and restoration by means of look-up tables
US6194963B1 (en) * 1998-11-18 2001-02-27 Ericsson Inc. Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation
US6295442B1 (en) * 1998-12-07 2001-09-25 Ericsson Inc. Amplitude modulation to phase modulation cancellation method in an RF amplifier
GB2363535A (en) * 2000-06-15 2001-12-19 Sagem Device for the production of a phase-modulated and amplitude-modulated signal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5420536A (en) * 1993-03-16 1995-05-30 Victoria University Of Technology Linearized power amplifier
US6194963B1 (en) * 1998-11-18 2001-02-27 Ericsson Inc. Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation
US6295442B1 (en) * 1998-12-07 2001-09-25 Ericsson Inc. Amplitude modulation to phase modulation cancellation method in an RF amplifier
EP1035701A1 (en) * 1999-03-08 2000-09-13 Motorola, Inc. Modulator using envelope elimination and restoration by means of look-up tables
GB2363535A (en) * 2000-06-15 2001-12-19 Sagem Device for the production of a phase-modulated and amplitude-modulated signal

Also Published As

Publication number Publication date
AU2003279177A1 (en) 2004-05-04
AU2003279177A8 (en) 2004-05-04
WO2004036737A2 (en) 2004-04-29

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