ATE178744T1 - Verfahren und vorrichtung zum abstimmen eines bandpassfilters - Google Patents

Verfahren und vorrichtung zum abstimmen eines bandpassfilters

Info

Publication number
ATE178744T1
ATE178744T1 AT94903898T AT94903898T ATE178744T1 AT E178744 T1 ATE178744 T1 AT E178744T1 AT 94903898 T AT94903898 T AT 94903898T AT 94903898 T AT94903898 T AT 94903898T AT E178744 T1 ATE178744 T1 AT E178744T1
Authority
AT
Austria
Prior art keywords
signal
bandpass filter
pct
signals
frequency
Prior art date
Application number
AT94903898T
Other languages
English (en)
Inventor
Eero Koukkari
Pekka Heikkilae
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 ATE178744T1 publication Critical patent/ATE178744T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
    • H03J3/08—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges by varying a second parameter simultaneously with the tuning, e.g. coupling bandpass filter

Landscapes

  • Networks Using Active Elements (AREA)
  • Filters And Equalizers (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Transmitters (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Paper (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Fats And Perfumes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
AT94903898T 1992-12-30 1993-12-29 Verfahren und vorrichtung zum abstimmen eines bandpassfilters ATE178744T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI925955A FI93064C (fi) 1992-12-30 1992-12-30 Laite ja menetelmä kaistanpäästösuodattimen, erityisesti kompainerisuodattimen säätämiseksi

Publications (1)

Publication Number Publication Date
ATE178744T1 true ATE178744T1 (de) 1999-04-15

Family

ID=8536490

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94903898T ATE178744T1 (de) 1992-12-30 1993-12-29 Verfahren und vorrichtung zum abstimmen eines bandpassfilters

Country Status (9)

Country Link
US (1) US5757247A (de)
EP (1) EP0679297B1 (de)
JP (1) JPH08505495A (de)
AT (1) ATE178744T1 (de)
AU (1) AU679203B2 (de)
DE (1) DE69324379T2 (de)
FI (1) FI93064C (de)
NO (1) NO310270B1 (de)
WO (1) WO1994016496A1 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US6255635B1 (en) 1998-07-10 2001-07-03 Ameritherm, Inc. System and method for providing RF power to a load
SE0000585D0 (sv) * 2000-02-23 2000-02-23 Ericsson Telefon Ab L M Tuning method and system
US6757910B1 (en) * 2000-06-08 2004-06-29 C-Cor.Net Corporation Adaptive filter for reducing ingress noise in CATV return signals
JP3622728B2 (ja) * 2002-01-30 2005-02-23 日本電気株式会社 受信機のベースバンド回路及びその低域遮断周波数制御方法
US7139542B2 (en) * 2003-03-03 2006-11-21 Nokia Corporation Method and apparatus for compensating DC level in an adaptive radio receiver
KR100785079B1 (ko) * 2006-04-04 2007-12-12 삼성전자주식회사 부하의 임피던스 정합시스템 및 정합방법과, 이를 적용한네트워크 분석기
KR100825508B1 (ko) * 2006-11-10 2008-04-25 박진우 대역 통과 표본화에 의한 복수의 무선 처리 신호들에 대한동시 하향 변환 장치 및 방법
WO2011150952A1 (en) * 2010-05-31 2011-12-08 Prism Microwave Oy Tuning system of resonator filters
US8810331B2 (en) * 2010-12-10 2014-08-19 Wispry, Inc. MEMS tunable notch filter frequency automatic control loop systems and methods
US9031523B2 (en) * 2012-06-26 2015-05-12 Htc Corporation Systems and methods for determining antenna impedance
US8743746B2 (en) 2012-07-25 2014-06-03 Blackberry Limited Transceiver filter and tuning
US9780756B2 (en) 2013-08-01 2017-10-03 Qorvo Us, Inc. Calibration for a tunable RF filter structure
US9899133B2 (en) 2013-08-01 2018-02-20 Qorvo Us, Inc. Advanced 3D inductor structures with confined magnetic field
US9685928B2 (en) 2013-08-01 2017-06-20 Qorvo Us, Inc. Interference rejection RF filters
US9755671B2 (en) 2013-08-01 2017-09-05 Qorvo Us, Inc. VSWR detector for a tunable filter structure
US9294045B2 (en) 2013-03-15 2016-03-22 Rf Micro Devices, Inc. Gain and phase calibration for closed loop feedback linearized amplifiers
US9705478B2 (en) 2013-08-01 2017-07-11 Qorvo Us, Inc. Weakly coupled tunable RF receiver architecture
US9628045B2 (en) 2013-08-01 2017-04-18 Qorvo Us, Inc. Cooperative tunable RF filters
US9859863B2 (en) 2013-03-15 2018-01-02 Qorvo Us, Inc. RF filter structure for antenna diversity and beam forming
US9774311B2 (en) * 2013-03-15 2017-09-26 Qorvo Us, Inc. Filtering characteristic adjustments of weakly coupled tunable RF filters
US9455680B2 (en) 2013-06-06 2016-09-27 Qorvo Us, Inc. Tunable RF filter structure formed by a matrix of weakly coupled resonators
US9871499B2 (en) 2013-03-15 2018-01-16 Qorvo Us, Inc. Multi-band impedance tuners using weakly-coupled LC resonators
US9825656B2 (en) 2013-08-01 2017-11-21 Qorvo Us, Inc. Weakly coupled tunable RF transmitter architecture
US9780817B2 (en) 2013-06-06 2017-10-03 Qorvo Us, Inc. RX shunt switching element-based RF front-end circuit
US9966981B2 (en) 2013-06-06 2018-05-08 Qorvo Us, Inc. Passive acoustic resonator based RF receiver
US9705542B2 (en) 2013-06-06 2017-07-11 Qorvo Us, Inc. Reconfigurable RF filter
US9800282B2 (en) 2013-06-06 2017-10-24 Qorvo Us, Inc. Passive voltage-gain network
US10796835B2 (en) 2015-08-24 2020-10-06 Qorvo Us, Inc. Stacked laminate inductors for high module volume utilization and performance-cost-size-processing-time tradeoff
US11139238B2 (en) 2016-12-07 2021-10-05 Qorvo Us, Inc. High Q factor inductor structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2923277A1 (de) * 1979-06-08 1980-12-11 Rohde & Schwarz Anordnung zum selbsttaetigen abstimmen eines transformationsnetzwerkes
SE467717B (sv) * 1990-12-21 1992-08-31 Ericsson Telefon Ab L M Foerfarande foer finavstaemning av resonansfrekvensen foer ett filter i en combiner
FI105958B (fi) * 1991-01-18 2000-10-31 Murata Manufacturing Co Itsevirittyvä laite kaistanpäästösuodatinta varten
FI87864C (fi) * 1991-05-09 1993-02-25 Telenokia Oy Anordning och foerfarande foer reglering av ett bandpassfilter, saerskilt ett kombinatorfilter
FI94690C (fi) * 1992-12-30 1995-10-10 Nokia Telecommunications Oy Laite kompainerisuodattimen virittämiseksi ja menetelmä erotusmittauksen suorittamiseksi

Also Published As

Publication number Publication date
FI93064B (fi) 1994-10-31
AU679203B2 (en) 1997-06-26
WO1994016496A1 (en) 1994-07-21
EP0679297B1 (de) 1999-04-07
NO310270B1 (no) 2001-06-11
FI925955A (fi) 1994-07-01
JPH08505495A (ja) 1996-06-11
DE69324379T2 (de) 1999-09-30
FI93064C (fi) 1995-02-10
NO952616L (no) 1995-08-29
NO952616D0 (no) 1995-06-29
DE69324379D1 (de) 1999-05-12
FI925955A0 (fi) 1992-12-30
AU5816594A (en) 1994-08-15
EP0679297A1 (de) 1995-11-02
US5757247A (en) 1998-05-26

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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