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ATE156317T1 - Vorrichtung und verfahren zum justieren eines bandpassfilters, insbesondere eines kombinierfilters - Google Patents

Vorrichtung und verfahren zum justieren eines bandpassfilters, insbesondere eines kombinierfilters

Info

Publication number
ATE156317T1
ATE156317T1 AT92909598T AT92909598T ATE156317T1 AT E156317 T1 ATE156317 T1 AT E156317T1 AT 92909598 T AT92909598 T AT 92909598T AT 92909598 T AT92909598 T AT 92909598T AT E156317 T1 ATE156317 T1 AT E156317T1
Authority
AT
Austria
Prior art keywords
bandpass filter
filter
pct
adjusting
lowpass
Prior art date
Application number
AT92909598T
Other languages
English (en)
Inventor
Veli-Matti Saerkkae
Original Assignee
Nokia Telecommunications Oy
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 Telecommunications Oy filed Critical Nokia Telecommunications Oy
Application granted granted Critical
Publication of ATE156317T1 publication Critical patent/ATE156317T1/de

Links

Classifications

    • 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
    • H03H11/1291—Current or voltage controlled filters

Landscapes

  • Transmitters (AREA)
  • Networks Using Active Elements (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Filters And Equalizers (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Fats And Perfumes (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Paper (AREA)
AT92909598T 1991-05-09 1992-05-08 Vorrichtung und verfahren zum justieren eines bandpassfilters, insbesondere eines kombinierfilters ATE156317T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI912255A FI87864C (fi) 1991-05-09 1991-05-09 Anordning och foerfarande foer reglering av ett bandpassfilter, saerskilt ett kombinatorfilter

Publications (1)

Publication Number Publication Date
ATE156317T1 true ATE156317T1 (de) 1997-08-15

Family

ID=8532483

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92909598T ATE156317T1 (de) 1991-05-09 1992-05-08 Vorrichtung und verfahren zum justieren eines bandpassfilters, insbesondere eines kombinierfilters

Country Status (9)

Country Link
US (1) US5420552A (de)
EP (1) EP0583306B1 (de)
JP (1) JP3069374B2 (de)
AT (1) ATE156317T1 (de)
AU (1) AU657132B2 (de)
DE (1) DE69221295T2 (de)
FI (1) FI87864C (de)
NO (1) NO303997B1 (de)
WO (1) WO1992020149A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI93064C (fi) * 1992-12-30 1995-02-10 Nokia Telecommunications Oy Laite ja menetelmä kaistanpäästösuodattimen, erityisesti kompainerisuodattimen säätämiseksi
FI94690C (fi) * 1992-12-30 1995-10-10 Nokia Telecommunications Oy Laite kompainerisuodattimen virittämiseksi ja menetelmä erotusmittauksen suorittamiseksi
FI94807C (fi) * 1992-12-30 1995-10-25 Nokia Telecommunications Oy Menetelmä ja järjestely kompainerisuodattimen virittämiseksi
FI107766B (fi) * 1998-01-28 2001-09-28 Nokia Networks Oy Viritysmenetelmä ja lähetinvastaanotinyksikkö
SE0000585D0 (sv) 2000-02-23 2000-02-23 Ericsson Telefon Ab L M Tuning method and system
US7047196B2 (en) 2000-06-08 2006-05-16 Agiletv Corporation System and method of voice recognition near a wireline node of a network supporting cable television and/or video delivery
US6480703B1 (en) * 2000-11-07 2002-11-12 Agile Tv Corporation Common carrier, multiple output RF upconverter
US8095370B2 (en) 2001-02-16 2012-01-10 Agiletv Corporation Dual compression voice recordation non-repudiation system
SE519372C2 (sv) * 2001-03-09 2003-02-18 Nat Semiconductor Corp Metod och krets för filtertrimning
US6778023B2 (en) * 2001-07-31 2004-08-17 Nokia Corporation Tunable filter and method of tuning a filter
KR100785079B1 (ko) * 2006-04-04 2007-12-12 삼성전자주식회사 부하의 임피던스 정합시스템 및 정합방법과, 이를 적용한네트워크 분석기
WO2008023340A2 (en) * 2006-08-23 2008-02-28 Nxp B.V. Filter-tracking and control method
US20080107011A1 (en) * 2006-11-02 2008-05-08 Mediatek Inc. System, Apparatus, and Method for Processing a Received Orthogonal Frequency Division Multiplexing Signal
WO2008072202A1 (en) * 2006-12-15 2008-06-19 Nxp B.V. Rf circuit analysis
CN103503314B (zh) * 2010-12-10 2016-01-27 维斯普瑞公司 Mems可调陷波滤波器频率自动控制回路系统和方法
JP5776495B2 (ja) * 2011-10-31 2015-09-09 富士通株式会社 利得測定回路、利得測定方法および通信装置
DE102012203026A1 (de) 2012-02-28 2013-08-29 Sennheiser Electronic Gmbh & Co. Kg Hochfrequenzsender
US9031523B2 (en) * 2012-06-26 2015-05-12 Htc Corporation Systems and methods for determining antenna impedance
EP2876811A1 (de) * 2013-11-21 2015-05-27 Alcatel Lucent Abstimmung eines abstimmbaren Filters

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715690A (en) * 1971-05-18 1973-02-06 Trw Inc Automatic tuning electric wave filter
FR2298903A1 (fr) * 1975-01-22 1976-08-20 Thomson Csf Dispositif d'adaptation d'antenne et antenne munie d'un tel dispositif
US4726071A (en) * 1984-12-31 1988-02-16 Orion Industries, Inc. Microprocessor controlled self-tuning resonant cavity and method
US4951009A (en) * 1989-08-11 1990-08-21 Applied Materials, Inc. Tuning method and control system for automatic matching network
US5019792A (en) * 1989-10-23 1991-05-28 Raytheon Company Signal tracking electronically tunable filter
US4980656A (en) * 1989-12-01 1990-12-25 Motorola, Inc. Active input impedance tuner for compensating for power loss
DK0495514T3 (de) * 1991-01-18 1997-02-17 Murata Manufacturing Co

Also Published As

Publication number Publication date
NO934034L (no) 1994-01-07
AU657132B2 (en) 1995-03-02
NO303997B1 (no) 1998-10-05
WO1992020149A1 (en) 1992-11-12
FI912255A0 (fi) 1991-05-09
AU1686192A (en) 1992-12-21
EP0583306B1 (de) 1997-07-30
JPH06511115A (ja) 1994-12-08
FI87864B (fi) 1992-11-13
NO934034D0 (no) 1993-11-08
FI87864C (fi) 1993-02-25
DE69221295T2 (de) 1998-01-15
EP0583306A1 (de) 1994-02-23
DE69221295D1 (de) 1997-09-04
JP3069374B2 (ja) 2000-07-24
US5420552A (en) 1995-05-30

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee