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DE69916660T2 - Elektrisch abstimmbare filter mit dielektrischen varaktoren - Google Patents

Elektrisch abstimmbare filter mit dielektrischen varaktoren Download PDF

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Publication number
DE69916660T2
DE69916660T2 DE69916660T DE69916660T DE69916660T2 DE 69916660 T2 DE69916660 T2 DE 69916660T2 DE 69916660 T DE69916660 T DE 69916660T DE 69916660 T DE69916660 T DE 69916660T DE 69916660 T2 DE69916660 T2 DE 69916660T2
Authority
DE
Germany
Prior art keywords
connection point
pass
tunable filters
electrically tunable
voltage tunable
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
DE69916660T
Other languages
English (en)
Other versions
DE69916660D1 (de
Inventor
C Sengupta
C Stowell
Yongfei Zhu
Somnath Sengupta
H Chiu
Xubai Zhang
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.)
BlackBerry RF Inc
Original Assignee
Paratek Microwave Inc
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 Paratek Microwave Inc filed Critical Paratek Microwave Inc
Publication of DE69916660D1 publication Critical patent/DE69916660D1/de
Application granted granted Critical
Publication of DE69916660T2 publication Critical patent/DE69916660T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01P1/207—Hollow waveguide filters
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
    • 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
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
    • 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

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Filters And Equalizers (AREA)
DE69916660T 1998-12-11 1999-12-09 Elektrisch abstimmbare filter mit dielektrischen varaktoren Expired - Fee Related DE69916660T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11188898P 1998-12-11 1998-12-11
PCT/US1999/029230 WO2000035042A1 (en) 1998-12-11 1999-12-09 Electrically tunable filters with dielectric varactors

Publications (2)

Publication Number Publication Date
DE69916660D1 DE69916660D1 (de) 2004-05-27
DE69916660T2 true DE69916660T2 (de) 2005-04-21

Family

ID=22340979

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69916660T Expired - Fee Related DE69916660T2 (de) 1998-12-11 1999-12-09 Elektrisch abstimmbare filter mit dielektrischen varaktoren

Country Status (11)

Country Link
US (2) US20020186099A1 (de)
EP (1) EP1145362B1 (de)
JP (1) JP2002532889A (de)
KR (1) KR20010080727A (de)
CN (1) CN1329762A (de)
AT (1) ATE265093T1 (de)
AU (1) AU1843400A (de)
CA (1) CA2352166A1 (de)
DE (1) DE69916660T2 (de)
EA (1) EA200100654A1 (de)
WO (1) WO2000035042A1 (de)

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US20100096678A1 (en) * 2008-10-20 2010-04-22 University Of Dayton Nanostructured barium strontium titanate (bst) thin-film varactors on sapphire
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US8436698B2 (en) * 2009-11-02 2013-05-07 Harris Corporation MEMS-based tunable filter
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US10320357B2 (en) * 2013-03-15 2019-06-11 Wispry, Inc. Electromagnetic tunable filter systems, devices, and methods in a wireless communication network for supporting multiple frequency bands
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Also Published As

Publication number Publication date
EA200100654A1 (ru) 2001-12-24
US20050088255A1 (en) 2005-04-28
EP1145362B1 (de) 2004-04-21
CA2352166A1 (en) 2000-06-15
CN1329762A (zh) 2002-01-02
JP2002532889A (ja) 2002-10-02
DE69916660D1 (de) 2004-05-27
ATE265093T1 (de) 2004-05-15
AU1843400A (en) 2000-06-26
EP1145362A1 (de) 2001-10-17
US20020186099A1 (en) 2002-12-12
KR20010080727A (ko) 2001-08-22
US7145415B2 (en) 2006-12-05
WO2000035042A1 (en) 2000-06-15

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