CN1183672C - 多相滤波器 - Google Patents

多相滤波器 Download PDF

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Publication number
CN1183672C
CN1183672C CN00817695.7A CN00817695A CN1183672C CN 1183672 C CN1183672 C CN 1183672C CN 00817695 A CN00817695 A CN 00817695A CN 1183672 C CN1183672 C CN 1183672C
Authority
CN
China
Prior art keywords
filter
channel
current source
capacitive
voltage
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 - Fee Related
Application number
CN00817695.7A
Other languages
English (en)
Chinese (zh)
Other versions
CN1413379A (zh
Inventor
B·H·埃辛克
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of CN1413379A publication Critical patent/CN1413379A/zh
Application granted granted Critical
Publication of CN1183672C publication Critical patent/CN1183672C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/16—Networks for phase shifting
    • H03H11/22—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/08—Frequency selective two-port networks using gyrators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H2011/0494—Complex filters

Landscapes

  • Networks Using Active Elements (AREA)
  • Filters And Equalizers (AREA)
  • Power Conversion In General (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Glass Compositions (AREA)
CN00817695.7A 1999-12-24 2000-12-22 多相滤波器 Expired - Fee Related CN1183672C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1013951A NL1013951C2 (nl) 1999-12-24 1999-12-24 Polyfase filter.
NL1013951 1999-12-24

Publications (2)

Publication Number Publication Date
CN1413379A CN1413379A (zh) 2003-04-23
CN1183672C true CN1183672C (zh) 2005-01-05

Family

ID=19770510

Family Applications (1)

Application Number Title Priority Date Filing Date
CN00817695.7A Expired - Fee Related CN1183672C (zh) 1999-12-24 2000-12-22 多相滤波器

Country Status (10)

Country Link
US (1) US6346850B2 (https=)
EP (1) EP1247339B1 (https=)
JP (1) JP4763206B2 (https=)
CN (1) CN1183672C (https=)
AT (1) ATE250824T1 (https=)
AU (1) AU2019901A (https=)
DE (1) DE60005561T2 (https=)
MY (1) MY121473A (https=)
NL (1) NL1013951C2 (https=)
WO (1) WO2001048918A2 (https=)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030128068A1 (en) * 2001-08-16 2003-07-10 Farbod Behbahani Low noise image-reject gm-c filter
JP2005522906A (ja) * 2002-04-11 2005-07-28 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 積分器付きポリフェーズフィルタ
EP1510001B1 (en) * 2002-06-03 2009-02-25 Telefonaktiebolaget LM Ericsson (publ) An amplifier circuit, gyrator circuit, filter device and method for amplifying a signal
CN100426670C (zh) * 2002-08-15 2008-10-15 联发科技股份有限公司 多相滤波器电路
US7098731B1 (en) 2004-01-13 2006-08-29 Wyszynski Adam S Synthesis method for an active polyphase filter
DE102004030229A1 (de) * 2004-06-23 2006-01-19 Infineon Technologies Ag Funkabfragbarer Datenträger
US7689189B2 (en) * 2005-04-06 2010-03-30 Silicon Laboratories Inc. Circuit and method for signal reception using a low intermediate frequency reception
US7196574B1 (en) * 2005-06-22 2007-03-27 Vishinsky Adam S Active polyphase ladder filters with transmission zeros and their synthesis method
US7973861B2 (en) * 2007-04-19 2011-07-05 Newport Media, Inc. Universal tuner for mobile TV
US8412141B2 (en) * 2009-10-19 2013-04-02 Qualcomm Incorporated LR polyphase filter
DE102010031535A1 (de) 2010-07-19 2012-01-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Bildaufnahmevorrichtung und Verfahren zum Aufnehmen eines Bildes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8801412A (nl) 1988-06-02 1990-01-02 Philips Nv Asymmetrisch polyfase filter.
EP0763278B1 (en) * 1995-04-03 2001-10-24 Koninklijke Philips Electronics N.V. Quadrature signal conversion device
GB9605719D0 (en) * 1996-03-19 1996-05-22 Philips Electronics Nv Integrated receiver
WO1999016179A2 (en) * 1997-09-25 1999-04-01 Koninklijke Philips Electronics N.V. Improvements in or relating to phasing receivers

Also Published As

Publication number Publication date
ATE250824T1 (de) 2003-10-15
EP1247339A2 (en) 2002-10-09
US6346850B2 (en) 2002-02-12
WO2001048918A2 (en) 2001-07-05
NL1013951C2 (nl) 2001-07-02
MY121473A (en) 2006-01-28
WO2001048918A3 (en) 2002-03-07
JP4763206B2 (ja) 2011-08-31
JP2003518863A (ja) 2003-06-10
AU2019901A (en) 2001-07-09
CN1413379A (zh) 2003-04-23
EP1247339B1 (en) 2003-09-24
US20010013807A1 (en) 2001-08-16
DE60005561D1 (en) 2003-10-30
DE60005561T2 (de) 2004-04-29

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050105

Termination date: 20161222

CF01 Termination of patent right due to non-payment of annual fee