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WO2003036789A3 - Radio frequency amplifier - Google Patents

Radio frequency amplifierDownload PDF

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Publication number
WO2003036789A3
WO2003036789A3PCT/GB2002/004827GB0204827WWO03036789A3WO 2003036789 A3WO2003036789 A3WO 2003036789A3GB 0204827 WGB0204827 WGB 0204827WWO 03036789 A3WO03036789 A3WO 03036789A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
modulated
carrier
generate
output
Prior art date
Application number
PCT/GB2002/004827
Other languages
French (fr)
Other versions
WO2003036789A2 (en
Inventor
Simon Tonks
Original Assignee
Pa Consulting Services
Simon Tonks
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 Pa Consulting Services, Simon TonksfiledCriticalPa Consulting Services
Priority to AU2002341138ApriorityCriticalpatent/AU2002341138A1/en
Publication of WO2003036789A2publicationCriticalpatent/WO2003036789A2/en
Publication of WO2003036789A3publicationCriticalpatent/WO2003036789A3/en

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Abstract

An amplifying circuit for generating a radio frequency modulated output signal carrying an amplitude-modulated signal, the amplifying circuit including: a first modulator for accepting a first I/Q component signal Il,Q1 and a carrier signal, and modulating the first I/Q component signal with the carrier signal to generate a first modulated signal; a first amplifier for amplifying the first modulated signal; a second modulator for accepting a second I/Q component signal I2,Q2 and the carrier, and modulating the second I/Q component signal with the carrier signal to generate a second modulated signal; a second amplifier for amplifying the second modulated signal; output combining circuitry for combining the amplified first and second modulated signals, thereby to generate the output signal; and phase changing means for selectively altering relative phases of the first and second modulated signals prior to being combined, such that the output signal is phase modulated in accordance with a data signal to be transmitted and amplitude modulated on the basis of a desired transmission power.
PCT/GB2002/0048272001-10-262002-10-25Radio frequency amplifierWO2003036789A2 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
AU2002341138AAU2002341138A1 (en)2001-10-262002-10-25Radio frequency amplifier

Applications Claiming Priority (2)

Application NumberPriority DateFiling DateTitle
GB0125788AGB0125788D0 (en)2001-10-262001-10-26Radio frequency amplifier
GB0125788.02001-10-26

Publications (2)

Publication NumberPublication Date
WO2003036789A2 WO2003036789A2 (en)2003-05-01
WO2003036789A3true WO2003036789A3 (en)2003-09-18

Family

ID=9924625

Family Applications (1)

Application NumberTitlePriority DateFiling Date
PCT/GB2002/004827WO2003036789A2 (en)2001-10-262002-10-25Radio frequency amplifier

Country Status (3)

CountryLink
AU (1)AU2002341138A1 (en)
GB (1)GB0125788D0 (en)
WO (1)WO2003036789A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
GB2135844A (en)*1983-02-211984-09-05Nippon Telegraph & TelephoneOscillator with variable frequency and phase
EP0763885A2 (en)*1995-09-131997-03-19Fujitsu LimitedModulator and frequency multiplier for use therein
US5861781A (en)*1997-09-161999-01-19Lucent Technologies Inc.Single sideband double quadrature modulator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
GB2135844A (en)*1983-02-211984-09-05Nippon Telegraph & TelephoneOscillator with variable frequency and phase
EP0763885A2 (en)*1995-09-131997-03-19Fujitsu LimitedModulator and frequency multiplier for use therein
US5861781A (en)*1997-09-161999-01-19Lucent Technologies Inc.Single sideband double quadrature modulator

Also Published As

Publication numberPublication date
GB0125788D0 (en)2001-12-19
AU2002341138A1 (en)2003-05-06
WO2003036789A2 (en)2003-05-01

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