WO2004021584A3 - Direct downconversion receiver - Google Patents

Direct downconversion receiver Download PDF

Info

Publication number
WO2004021584A3
WO2004021584A3 PCT/US2003/027115 US0327115W WO2004021584A3 WO 2004021584 A3 WO2004021584 A3 WO 2004021584A3 US 0327115 W US0327115 W US 0327115W WO 2004021584 A3 WO2004021584 A3 WO 2004021584A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
direct downconversion
downconversion receiver
local oscillator
quadrature
Prior art date
Application number
PCT/US2003/027115
Other languages
French (fr)
Other versions
WO2004021584A2 (en
Inventor
Eugene Rzyski
Todd Wangsness
Original Assignee
Eugene Rzyski
Todd Wangsness
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 Eugene Rzyski, Todd Wangsness filed Critical Eugene Rzyski
Priority to AU2003268266A priority Critical patent/AU2003268266B2/en
Priority to JP2004531927A priority patent/JP4332113B2/en
Priority to EP03749220A priority patent/EP1535400A4/en
Priority to MXPA05002286A priority patent/MXPA05002286A/en
Publication of WO2004021584A2 publication Critical patent/WO2004021584A2/en
Publication of WO2004021584A3 publication Critical patent/WO2004021584A3/en

Links

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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • 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

Abstract

A direct downconversion receiver combines a received RF signal and a local oscillator (LO) signal to form a combined signal. The local oscillator signal is also phase-shifted by approximately 90 degrees to form a quadrature signal. A mixer forms the product of the combined signal and the quadrature signal to produce a baseband output signal.
PCT/US2003/027115 2002-08-29 2003-08-28 Direct downconversion receiver WO2004021584A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2003268266A AU2003268266B2 (en) 2002-08-29 2003-08-28 Direct downconversion receiver
JP2004531927A JP4332113B2 (en) 2002-08-29 2003-08-28 Direct conversion receiver
EP03749220A EP1535400A4 (en) 2002-08-29 2003-08-28 Direct downconversion receiver
MXPA05002286A MXPA05002286A (en) 2002-08-29 2003-08-28 Direct downconversion receiver.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/231,813 2002-08-29
US10/231,813 US6745020B2 (en) 2002-08-29 2002-08-29 Direct downconversion receiver

Publications (2)

Publication Number Publication Date
WO2004021584A2 WO2004021584A2 (en) 2004-03-11
WO2004021584A3 true WO2004021584A3 (en) 2004-04-29

Family

ID=31976823

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/027115 WO2004021584A2 (en) 2002-08-29 2003-08-28 Direct downconversion receiver

Country Status (7)

Country Link
US (1) US6745020B2 (en)
EP (1) EP1535400A4 (en)
JP (1) JP4332113B2 (en)
KR (1) KR100994581B1 (en)
AU (1) AU2003268266B2 (en)
MX (1) MXPA05002286A (en)
WO (1) WO2004021584A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1665551B1 (en) * 2003-09-18 2007-11-14 THOMSON Licensing Broad distribution bi-directional user terminal at configurable broadcast frequencies
US7424066B2 (en) * 2005-01-21 2008-09-09 Analog Devices, Inc. Receiver structures for selectable direct conversion and low intermediate frequency operational modes
US7885632B2 (en) * 2005-05-20 2011-02-08 Omniphase Research Laboratories, Inc. Automated noise measurement system
CA2673529A1 (en) * 2007-01-17 2008-07-24 Omniphase Research Laboratories, Inc. Automated noise measurement system
US8248297B1 (en) 2011-04-11 2012-08-21 Advanced Testing Technologies, Inc. Phase noise measurement system and method
EP2584651B1 (en) 2011-10-18 2015-07-01 Imec Method for beamforming and device using the same
US9154217B1 (en) * 2013-10-29 2015-10-06 Anokiwave, Inc. Direct conversion remote satellite communications terminal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5943370A (en) * 1995-05-10 1999-08-24 Roke Manor Research Limited Direct conversion receiver
US6275542B1 (en) * 1997-05-13 2001-08-14 Matsushita Electric Industrial Co., Ltd. Direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944025A (en) * 1988-08-09 1990-07-24 At&E Corporation Direct conversion FM receiver with offset
US5263194A (en) * 1990-03-07 1993-11-16 Seiko Corp. Zero if radio receiver for intermittent operation
US5617451A (en) * 1993-09-13 1997-04-01 Matsushita Electric Industrial Co., Ltd. Direct-conversion receiver for digital-modulation signal with signal strength detection
US5918167A (en) * 1997-03-11 1999-06-29 Northern Telecom Limited Quadrature downconverter local oscillator leakage canceller
GB2332109B (en) * 1997-12-04 2001-06-27 Nec Technologies Direct conversion receiver pre-selection
GB9804708D0 (en) * 1998-03-05 1998-04-29 Nec Technologies Uk Ltd Radio transmitter/reciever channel selection
US6393372B1 (en) 1999-05-17 2002-05-21 Eugene Rzyski Automated frequency stepping noise measurement system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5943370A (en) * 1995-05-10 1999-08-24 Roke Manor Research Limited Direct conversion receiver
US6275542B1 (en) * 1997-05-13 2001-08-14 Matsushita Electric Industrial Co., Ltd. Direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal

Also Published As

Publication number Publication date
EP1535400A2 (en) 2005-06-01
WO2004021584A2 (en) 2004-03-11
EP1535400A4 (en) 2009-06-17
AU2003268266B2 (en) 2007-11-22
US6745020B2 (en) 2004-06-01
AU2003268266A1 (en) 2004-03-19
US20040043743A1 (en) 2004-03-04
MXPA05002286A (en) 2005-10-18
KR100994581B1 (en) 2010-11-15
KR20050055719A (en) 2005-06-13
JP2005537723A (en) 2005-12-08
JP4332113B2 (en) 2009-09-16

Similar Documents

Publication Publication Date Title
WO2003032514A3 (en) RF CONVERTER WITH MULTIPLE MODE FREQUENCY SYNTHESIZER COMPATIBLE WITH A 48 Fo GPS BASEBAND PROCESSOR
WO2004032339A3 (en) Subharmonic mixer
TW200501609A (en) Passive harmonic switch mixer
AU6974100A (en) Improved method and apparatus for down-conversion of radio frequency (rf) signals
WO2006068719A3 (en) Homodyne rfid receiver and method
EP1335487A3 (en) Quadrature mixer circuit using double frequency conversion
CA2315489A1 (en) Radio communication apparatus and radio communication method
WO2002056489A3 (en) Local oscillator leakage control in direct conversion processes
TW330354B (en) A high conversion gain CMOS mixer
EP1453216A3 (en) Dual band radio receiver
TW200743336A (en) RF receiver and RF transmitter
TW200614757A (en) Wireless data communication device
WO2002039580A3 (en) Direct conversion receiver
WO2002025804A3 (en) Calibration of a quadrature receiver
CA2379870A1 (en) Testing response of a radio transceiver
WO2004021584A3 (en) Direct downconversion receiver
EP1316813A3 (en) Sensor front-end with phase coding capability
WO2006047540A3 (en) Simplified radio frequency receiver
DE60308539D1 (en) Low intermediate frequency receiver
US7933576B2 (en) Sub-harmonic mixer
WO2002009270A3 (en) System and apparatus for a direct conversion receiver and transmitter
KR980007140A (en) Transmitter / receiver of time division full duplex spread spectrum communication system
WO1999030424A3 (en) Transmitter comprising a vco
WO2001089092A3 (en) Apparatus for radio frequency processing with dual modulus synthesizer
DE602005003215D1 (en) RECEIVER FOR A MULTI-RECEIVED SIGNAL

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: PA/a/2005/002286

Country of ref document: MX

Ref document number: 2004531927

Country of ref document: JP

Ref document number: 1020057003523

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2003268266

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2003749220

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2003749220

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020057003523

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2003268266

Country of ref document: AU

Date of ref document: 20030828

Kind code of ref document: B