NO943192L - Anordning og fremgangsmåte for avstemming av et kombineringsfilter - Google Patents

Anordning og fremgangsmåte for avstemming av et kombineringsfilter

Info

Publication number
NO943192L
NO943192L NO943192A NO943192A NO943192L NO 943192 L NO943192 L NO 943192L NO 943192 A NO943192 A NO 943192A NO 943192 A NO943192 A NO 943192A NO 943192 L NO943192 L NO 943192L
Authority
NO
Norway
Prior art keywords
combiner
pct
measuring
tuning
signals
Prior art date
Application number
NO943192A
Other languages
English (en)
Other versions
NO943192D0 (no
NO306889B1 (no
Inventor
Pekka Heikkila
Eero Koukkari
Seppo Nousiainen
Juha Vasanoja
Martti Kainulainen
Jukka Kyllonen
Teuvo Haukipuro
Esa Niemitalo
Harri Tikka
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 NO943192D0 publication Critical patent/NO943192D0/no
Publication of NO943192L publication Critical patent/NO943192L/no
Publication of NO306889B1 publication Critical patent/NO306889B1/no

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)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Filters And Equalizers (AREA)
NO943192A 1992-12-30 1994-08-29 Anordning for regulering av et kombineringsfilter, samt fremgangsmåte for isolasjonsmåling på radiosendere NO306889B1 (no)

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 (3)

Publication Number Publication Date
NO943192D0 NO943192D0 (no) 1994-08-29
NO943192L true NO943192L (no) 1994-10-28
NO306889B1 NO306889B1 (no) 2000-01-03

Family

ID=8536491

Family Applications (1)

Application Number Title Priority Date Filing Date
NO943192A NO306889B1 (no) 1992-12-30 1994-08-29 Anordning for regulering av et kombineringsfilter, samt fremgangsmåte for isolasjonsmåling på radiosendere

Country Status (9)

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

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.
JP2005534203A (ja) * 2001-10-16 2005-11-10 株式会社ＲｆＳｔｒｅａｍ モノリシック集積回路上に受信機を実施するための方法および装置
US7199844B2 (en) * 2002-05-28 2007-04-03 Rfstream Corporation Quadratic nyquist slope filter
US7116961B2 (en) * 2002-05-29 2006-10-03 Rfstream Corporation Image rejection quadratic filter
US6750734B2 (en) * 2002-05-29 2004-06-15 Ukom, Inc. Methods and apparatus for tuning an LC filter
EP1532736A1 (en) * 2002-05-29 2005-05-25 Ukom, Inc. Methods and apparatus for tuning using successive aproximation
US6882245B2 (en) * 2002-06-05 2005-04-19 Rf Stream Corporation Frequency discrete LC filter bank
EP1514345A2 (en) * 2002-06-05 2005-03-16 Rfstream Corporation Quadratic video demodulation with baseband nyquist filter
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
WO2006099161A2 (en) * 2005-03-11 2006-09-21 Rfstream Corporation A mosfet temperature compensation current source
US20060217095A1 (en) * 2005-03-11 2006-09-28 Takatsuga Kamata 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
NO943192D0 (no) 1994-08-29
EP0647373A1 (en) 1995-04-12
ATE170346T1 (de) 1998-09-15
FI925956A0 (fi) 1992-12-30
EP0647373B1 (en) 1998-08-26
US5525940A (en) 1996-06-11
DE69320636T2 (de) 1999-02-11
FI94690C (fi) 1995-10-10
JPH07504557A (ja) 1995-05-18
FI94690B (fi) 1995-06-30
WO1994016497A1 (en) 1994-07-21
DE69320636D1 (de) 1998-10-01
JP3078839B2 (ja) 2000-08-21
AU674375B2 (en) 1996-12-19
AU5701394A (en) 1994-08-15
NO306889B1 (no) 2000-01-03
FI925956A (fi) 1994-07-01

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Legal Events

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MM1K Lapsed by not paying the annual fees

Free format text: LAPSED IN JUNE 2003