DE69804264D1 - Mischer zur Abwärtsumsetzung - Google Patents

Mischer zur Abwärtsumsetzung

Info

Publication number
DE69804264D1
DE69804264D1 DE69804264T DE69804264T DE69804264D1 DE 69804264 D1 DE69804264 D1 DE 69804264D1 DE 69804264 T DE69804264 T DE 69804264T DE 69804264 T DE69804264 T DE 69804264T DE 69804264 D1 DE69804264 D1 DE 69804264D1
Authority
DE
Germany
Prior art keywords
down conversion
conversion mixer
mixer
conversion
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.)
Expired - Lifetime
Application number
DE69804264T
Other languages
English (en)
Other versions
DE69804264T2 (de
Inventor
Izydor Sokoler
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Publication of DE69804264D1 publication Critical patent/DE69804264D1/de
Application granted granted Critical
Publication of DE69804264T2 publication Critical patent/DE69804264T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Superheterodyne Receivers (AREA)
DE69804264T 1997-05-09 1998-05-07 Mischer zur Abwärtsumsetzung Expired - Lifetime DE69804264T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9709464A GB2325102B (en) 1997-05-09 1997-05-09 Down conversion mixer

Publications (2)

Publication Number Publication Date
DE69804264D1 true DE69804264D1 (de) 2002-04-25
DE69804264T2 DE69804264T2 (de) 2002-11-21

Family

ID=10812080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69804264T Expired - Lifetime DE69804264T2 (de) 1997-05-09 1998-05-07 Mischer zur Abwärtsumsetzung

Country Status (6)

Country Link
US (1) US6073001A (de)
EP (1) EP0877476B1 (de)
JP (1) JP3408969B2 (de)
CN (1) CN1115894C (de)
DE (1) DE69804264T2 (de)
GB (1) GB2325102B (de)

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US6192225B1 (en) * 1998-04-22 2001-02-20 Ericsson Inc. Direct conversion receiver
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6230000B1 (en) * 1998-10-15 2001-05-08 Motorola Inc. Product detector and method therefor
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
DE19901751B4 (de) * 1999-01-18 2005-11-24 Rohde & Schwarz Gmbh & Co. Kg Mehrfachüberlagerungsstufe für einen Empfänger oder Spektrumanalysator
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US7209725B1 (en) 1999-01-22 2007-04-24 Parkervision, Inc Analog zero if FM decoder and embodiments thereof, such as the family radio service
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6879817B1 (en) * 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7054296B1 (en) * 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
GB2357202B (en) * 1999-12-09 2004-04-14 Ericsson Telefon Ab L M Receiver circuit
JP3510556B2 (ja) * 2000-03-30 2004-03-29 Ｎｅｃ化合物デバイス株式会社 イメージリジェクションミキサ及びそれを用いた受信機
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
AU2002210032A1 (en) * 2000-05-16 2001-11-26 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US6711397B1 (en) 2000-11-20 2004-03-23 Ami Semiconductor, Inc. Structures and methods for direct conversion from radio frequency modulated signals to baseband signals
US6766157B1 (en) * 2001-01-03 2004-07-20 Kyocera Wireless Corp. Reducing LO leakage in a direct conversion receiver quadrature stage
KR100436447B1 (ko) * 2001-12-28 2004-06-16 인티그런트 테크놀로지즈(주) 우수 왜곡 잡음 및 디씨 오프셋이 억제된 믹서 회로
WO2002075917A1 (en) * 2001-02-20 2002-09-26 Integrant Technologies Inc. Mixer circuit having improved even order noise, dc offset, and linearity characteristic
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
JP4166466B2 (ja) * 2001-12-19 2008-10-15 ソニー株式会社 無線通信システム及び無線通信方法、無線通信装置及びその制御方法、並びにコンピュータ・プログラム
US6975848B2 (en) * 2002-06-04 2005-12-13 Parkervision, Inc. Method and apparatus for DC offset removal in a radio frequency communication channel
US7130604B1 (en) * 2002-06-06 2006-10-31 National Semiconductor Corporation Harmonic rejection mixer and method of operation
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
KR100606123B1 (ko) * 2002-08-05 2006-07-28 삼성전자주식회사 직접 변환 수신기의 직류 오프셋 제거 장치
JP2004072515A (ja) * 2002-08-07 2004-03-04 Alps Electric Co Ltd 直接変換回路
US7003263B2 (en) 2003-05-12 2006-02-21 Lucent Technologies Inc. Telecommunications receiver and a transmitter
KR100519876B1 (ko) * 2004-01-30 2005-10-10 삼성전자주식회사 2차 혼변조 왜곡을 제거하기 위한 직접 변환용 믹서 회로및 이를 이용한 직접 변환 송수신기
KR100617139B1 (ko) * 2004-12-07 2006-08-31 엘지전자 주식회사 이동통신 단말기의 주파수 직접변환 수신기 및 이를이용한 주파수 직접변환방법
US7509110B2 (en) * 2005-03-14 2009-03-24 Broadcom Corporation High-order harmonic rejection mixer using multiple LO phases
GB0516766D0 (en) * 2005-08-16 2005-09-21 Zarlink Semiconductor Ltd Frequency changer and tuner
US20070224964A1 (en) * 2006-03-22 2007-09-27 Samsung Electro-Mechanics Co., Ltd. Sub-harmonic frequency conversion device
KR20120030171A (ko) * 2010-09-17 2012-03-28 삼성전자주식회사 하모닉 성분을 제거하기 위한 장치 및 방법
US8976897B2 (en) * 2013-07-24 2015-03-10 Qualcomm Incorporated Suppression of spurious harmonics generated in TX driver amplifiers
RU2542939C1 (ru) * 2013-10-09 2015-02-27 Общество с ограниченной ответственностью "Алсет Веллен" Приемник прямого преобразования с квадратурно-трехфазной архитектурой, способ прямого преобразования сигнала посредством указанного приемника и способ управления настройкой указанного приемника
US9431961B2 (en) 2014-10-29 2016-08-30 Qualcomm Incorporated Phase shifting mixer
US11177771B2 (en) 2018-10-10 2021-11-16 Analog Devices International Unlimited Company Multi-core mixers with local oscillator leakage compensation

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193036A (en) * 1978-07-03 1980-03-11 Motorola, Inc. Balanced active mixer circuit
NL8301651A (nl) * 1983-05-10 1984-12-03 Philips Nv Menginrichting voorzien van eerste en tweede kwadratuurmengtrappen.
GB2148064B (en) * 1983-10-14 1986-11-19 Philips Electronic Associated Image rejection mixer circuit
DE3685355D1 (de) * 1985-03-29 1992-06-25 Honeywell Inc Breitband-verstaerker/-mischgeraet.
FI87860C (fi) * 1988-04-05 1993-02-25 Nokia Mobira Oy Differentialutgaongens koppling som enpolig
DE3815055A1 (de) * 1988-05-04 1989-11-16 Standard Elektrik Lorenz Ag Quadratur-empfaenger
US5033110A (en) * 1990-05-18 1991-07-16 Northern Telecom Limited Frequency converter for a radio communications system
GB9017418D0 (en) * 1990-08-08 1990-09-19 Gen Electric Co Plc Half frequency mixer
FI93679C (fi) * 1991-10-23 1995-05-10 Nokia Mobile Phones Ltd Taajuusselektiivinen mikroliuskamuuntaja sekä diodisekoitin
FI89990C (fi) * 1991-12-19 1993-12-10 Nokia Mobile Phones Ltd Diodblandare
DE4201542C2 (de) * 1992-01-22 1994-03-03 Rohde & Schwarz Anordnung zum Unterdrücken von im Empfangssignal des Empfängers eines Hochfrequenz-Nachrichten-Übertragungssystems auftretenden Störsignalen
DE4236546C1 (de) * 1992-10-29 1994-05-05 Hagenuk Telecom Gmbh Homodynempfänger und Verfahren zur direkten Konvertierung
CA2120982A1 (en) * 1993-04-19 1994-10-20 Houng-Jay R. Yang Spur cancellation system
JPH0837425A (ja) * 1994-07-22 1996-02-06 Nippon Telegr & Teleph Corp <Ntt> 低歪みミキサ

Also Published As

Publication number Publication date
EP0877476B1 (de) 2002-03-20
CN1115894C (zh) 2003-07-23
GB2325102B (en) 2001-10-10
GB2325102A (en) 1998-11-11
US6073001A (en) 2000-06-06
JP3408969B2 (ja) 2003-05-19
GB9709464D0 (en) 1997-07-02
DE69804264T2 (de) 2002-11-21
EP0877476A1 (de) 1998-11-11
CN1219826A (zh) 1999-06-16
JPH10335940A (ja) 1998-12-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: BECKER, KURIG, STRAUS, 80336 MUENCHEN