WO2004088855A3 - Direct conversion transmitter system and method with quadrature balancing and low lo feed through - Google Patents

Direct conversion transmitter system and method with quadrature balancing and low lo feed through Download PDF

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Publication number
WO2004088855A3
WO2004088855A3 PCT/US2004/008782 US2004008782W WO2004088855A3 WO 2004088855 A3 WO2004088855 A3 WO 2004088855A3 US 2004008782 W US2004008782 W US 2004008782W WO 2004088855 A3 WO2004088855 A3 WO 2004088855A3
Authority
WO
WIPO (PCT)
Prior art keywords
feed
low
direct conversion
transmitter system
conversion transmitter
Prior art date
Application number
PCT/US2004/008782
Other languages
French (fr)
Other versions
WO2004088855A2 (en
Inventor
Lawrence J Malone
Lon W Christensen
Original Assignee
Quorum Systems Inc
Lawrence J Malone
Lon W Christensen
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 Quorum Systems Inc, Lawrence J Malone, Lon W Christensen filed Critical Quorum Systems Inc
Publication of WO2004088855A2 publication Critical patent/WO2004088855A2/en
Publication of WO2004088855A3 publication Critical patent/WO2004088855A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0483—Transmitters with multiple parallel paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Abstract

A system and method are provided for communicating a radio frequency (RF) signal. In use, a baseband signal is mixed with a plurality of oscillator signals with different phases in an interleaving manner. The mixed baseband signal is then communicated as an RF signal.
PCT/US2004/008782 2003-03-31 2004-03-22 Direct conversion transmitter system and method with quadrature balancing and low lo feed through WO2004088855A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45862103P 2003-03-31 2003-03-31
US60/458,621 2003-03-31

Publications (2)

Publication Number Publication Date
WO2004088855A2 WO2004088855A2 (en) 2004-10-14
WO2004088855A3 true WO2004088855A3 (en) 2005-04-07

Family

ID=33131811

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/008782 WO2004088855A2 (en) 2003-03-31 2004-03-22 Direct conversion transmitter system and method with quadrature balancing and low lo feed through

Country Status (1)

Country Link
WO (1) WO2004088855A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6016422A (en) * 1997-10-31 2000-01-18 Motorola, Inc. Method of and apparatus for generating radio frequency quadrature LO signals for direct conversion transceivers
US6055429A (en) * 1996-10-07 2000-04-25 Lynch; Michael R. Distributed wireless call processing system
US6064664A (en) * 1996-09-21 2000-05-16 Samsung Electronics Co., Ltd. Base-band interleaver for code division multiple access mobile telecommunication system
US6385439B1 (en) * 1997-10-31 2002-05-07 Telefonaktiebolaget Lm Ericsson (Publ) Linear RF power amplifier with optically activated switches
US6665159B2 (en) * 2000-02-21 2003-12-16 Hitachi, Ltd. Semiconductor integrated circuit device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6064664A (en) * 1996-09-21 2000-05-16 Samsung Electronics Co., Ltd. Base-band interleaver for code division multiple access mobile telecommunication system
US6055429A (en) * 1996-10-07 2000-04-25 Lynch; Michael R. Distributed wireless call processing system
US6016422A (en) * 1997-10-31 2000-01-18 Motorola, Inc. Method of and apparatus for generating radio frequency quadrature LO signals for direct conversion transceivers
US6385439B1 (en) * 1997-10-31 2002-05-07 Telefonaktiebolaget Lm Ericsson (Publ) Linear RF power amplifier with optically activated switches
US6665159B2 (en) * 2000-02-21 2003-12-16 Hitachi, Ltd. Semiconductor integrated circuit device

Also Published As

Publication number Publication date
WO2004088855A2 (en) 2004-10-14

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