DE69320636D1 - Vorrichtung und verfahren zum abstimmen eines mischerfilters - Google Patents

Vorrichtung und verfahren zum abstimmen eines mischerfilters

Info

Publication number
DE69320636D1
DE69320636D1 DE69320636T DE69320636T DE69320636D1 DE 69320636 D1 DE69320636 D1 DE 69320636D1 DE 69320636 T DE69320636 T DE 69320636T DE 69320636 T DE69320636 T DE 69320636T DE 69320636 D1 DE69320636 D1 DE 69320636D1
Authority
DE
Germany
Prior art keywords
combiner
pct
measuring
tuning
signals
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
DE69320636T
Other languages
English (en)
Other versions
DE69320636T2 (de
Inventor
Pekka Heikkilae
Eero Koukkari
Seppo Nousiainen
Juha Vasanoja
Martti Kainulainen
Jukka Kylloenen
Teuvo Haukipuro
Esa Niemitalo
Harri Tikka
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 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
Publication of DE69320636D1 publication Critical patent/DE69320636D1/de
Application granted granted Critical
Publication of DE69320636T2 publication Critical patent/DE69320636T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/46—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies

Landscapes

  • Networks Using Active Elements (AREA)
  • Transmitters (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Filters And Equalizers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
DE69320636T 1992-12-30 1993-12-29 Vorrichtung und verfahren zum abstimmen eines mischerfilters Expired - Fee Related DE69320636T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI925956A FI94690C (fi) 1992-12-30 1992-12-30 Laite kompainerisuodattimen virittämiseksi ja menetelmä erotusmittauksen suorittamiseksi
PCT/FI1993/000567 WO1994016497A1 (en) 1992-12-30 1993-12-29 Device and method for tuning a combiner filter

Publications (2)

Publication Number Publication Date
DE69320636D1 true DE69320636D1 (de) 1998-10-01
DE69320636T2 DE69320636T2 (de) 1999-02-11

Family

ID=8536491

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69320636T Expired - Fee Related DE69320636T2 (de) 1992-12-30 1993-12-29 Vorrichtung und verfahren zum abstimmen eines mischerfilters

Country Status (9)

Country Link
US (1) US5525940A (de)
EP (1) EP0647373B1 (de)
JP (1) JP3078839B2 (de)
AT (1) ATE170346T1 (de)
AU (1) AU674375B2 (de)
DE (1) DE69320636T2 (de)
FI (1) FI94690C (de)
NO (1) NO306889B1 (de)
WO (1) WO1994016497A1 (de)

Families Citing this family (21)

* 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
JP2728018B2 (ja) * 1995-04-18 1998-03-18 日本電気株式会社 送信回路
FI107766B (fi) * 1998-01-28 2001-09-28 Nokia Networks Oy Viritysmenetelmä ja lähetinvastaanotinyksikkö
SE0004481D0 (sv) * 2000-12-05 2000-12-05 Ericsson Telefon Ab L M A method and a device for tuning a cavity channel filter combiner
SE519892C2 (sv) * 2000-12-15 2003-04-22 Allgon Ab Metod för att avstämma ett radiofilter, ett radiofilter och ett system innefattande ett sådant radiofilter.
CN1572107A (zh) * 2001-10-16 2005-01-26 Rf信息公司 在单片集成电路中实现接收机功能的方法与装置
US7199844B2 (en) * 2002-05-28 2007-04-03 Rfstream Corporation Quadratic nyquist slope filter
AU2003249666A1 (en) * 2002-05-29 2003-12-19 Ukom, Inc. Methods and apparatus for tuning using successive aproximation
US6750734B2 (en) * 2002-05-29 2004-06-15 Ukom, Inc. Methods and apparatus for tuning an LC filter
US7116961B2 (en) * 2002-05-29 2006-10-03 Rfstream Corporation Image rejection quadratic filter
US6882245B2 (en) * 2002-06-05 2005-04-19 Rf Stream Corporation Frequency discrete LC filter bank
JP2005535161A (ja) * 2002-06-05 2005-11-17 株式会社ＲｆＳｔｒｅａｍ ベースバンド・ナイキスト・フィルタによる二次映像復調
US20050012676A1 (en) * 2003-07-16 2005-01-20 Mccarthy Robert Daniel N-port signal divider/combiner
US6940365B2 (en) 2003-07-18 2005-09-06 Rfstream Corporation Methods and apparatus for an improved discrete LC filter
US7446631B2 (en) * 2005-03-11 2008-11-04 Rf Stream Corporation Radio frequency inductive-capacitive filter circuit topology
US7358795B2 (en) * 2005-03-11 2008-04-15 Rfstream Corporation MOSFET temperature compensation current source
WO2006099071A2 (en) * 2005-03-11 2006-09-21 Rfstream Corporation A wideband tuning circuit
DE102009018648B4 (de) * 2009-04-23 2018-11-29 Snaptrack, Inc. Frontendmodul mit Antennentuner
US9136815B2 (en) 2012-06-13 2015-09-15 Nokia Technologies Oy Methods and apparatuses for implementing variable bandwidth RF tracking filters for reconfigurable multi-standard radios
US9136825B2 (en) * 2012-06-13 2015-09-15 Nokia Technologies Oy Method and device for implementing tracking filters and RF front end of software defined radios
US9407482B2 (en) 2013-11-11 2016-08-02 Nokia Technologies Oy Tunable RF N-path filter

Family Cites Families (4)

* 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
US4726071A (en) * 1984-12-31 1988-02-16 Orion Industries, Inc. Microprocessor controlled self-tuning resonant cavity and method
SE467717B (sv) * 1990-12-21 1992-08-31 Ericsson Telefon Ab L M Foerfarande foer finavstaemning av resonansfrekvensen foer ett filter i en combiner
FI87864C (fi) * 1991-05-09 1993-02-25 Telenokia Oy Anordning och foerfarande foer reglering av ett bandpassfilter, saerskilt ett kombinatorfilter

Also Published As

Publication number Publication date
EP0647373B1 (de) 1998-08-26
EP0647373A1 (de) 1995-04-12
ATE170346T1 (de) 1998-09-15
AU674375B2 (en) 1996-12-19
JP3078839B2 (ja) 2000-08-21
DE69320636T2 (de) 1999-02-11
FI94690B (fi) 1995-06-30
NO306889B1 (no) 2000-01-03
AU5701394A (en) 1994-08-15
JPH07504557A (ja) 1995-05-18
NO943192D0 (no) 1994-08-29
US5525940A (en) 1996-06-11
FI925956A0 (fi) 1992-12-30
FI925956A (fi) 1994-07-01
WO1994016497A1 (en) 1994-07-21
FI94690C (fi) 1995-10-10
NO943192L (no) 1994-10-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee