CA2461886A1 - Filtres passe-bande syntonisables par voie electrique - Google Patents

Filtres passe-bande syntonisables par voie electrique Download PDF

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Publication number
CA2461886A1
CA2461886A1 CA002461886A CA2461886A CA2461886A1 CA 2461886 A1 CA2461886 A1 CA 2461886A1 CA 002461886 A CA002461886 A CA 002461886A CA 2461886 A CA2461886 A CA 2461886A CA 2461886 A1 CA2461886 A1 CA 2461886A1
Authority
CA
Canada
Prior art keywords
resonator
bandpass filter
transfer function
tunable bandpass
filter according
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.)
Abandoned
Application number
CA002461886A
Other languages
English (en)
Inventor
Stanley S. Toncich
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.)
Qualcomm Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2461886A1 publication Critical patent/CA2461886A1/fr
Abandoned 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
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H01P1/20327—Electromagnetic interstage coupling
    • H01P1/20336—Comb or interdigital 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
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Networks Using Active Elements (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

L'invention concerne un filtre passe-bande syntonisable qui comprend: au moins un résonateur présentant une réactance et une fréquence de résonance, un film ferroélectrique présentant une constance diélectrique qui possède une valeur variant lors de l'application d'un champ électrique, et un dispositif de production de champ électrique permettant de produire des champs électriques relativement constants de forces différentes. Ledit film ferroélectrique est couplé par voie électrique au résonateur de sorte que la réactance du résonateur et ainsi la fréquence de résonance de celui-ci, ainsi que la bande passante du filtre dépendent de la constance diélectrique du film ferroélectrique. Le dispositif de production de champ électrique est conçu et disposé de manière à produire des champs électriques relativement constants dans le film ferroélectrique, la fréquence de résonance du résonateur et la bande passante du filtre devenant ainsi des fonctions de la force du champ électrique relativement constant.
CA002461886A 2001-09-27 2002-09-27 Filtres passe-bande syntonisables par voie electrique Abandoned CA2461886A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US32570101P 2001-09-27 2001-09-27
US60/325,701 2001-09-27
US41300902P 2002-09-23 2002-09-23
US60/413,009 2002-09-23
PCT/US2002/031118 WO2003028146A1 (fr) 2001-09-27 2002-09-27 Filtres passe-bande syntonisables par voie electrique

Publications (1)

Publication Number Publication Date
CA2461886A1 true CA2461886A1 (fr) 2003-04-03

Family

ID=26985049

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002461886A Abandoned CA2461886A1 (fr) 2001-09-27 2002-09-27 Filtres passe-bande syntonisables par voie electrique

Country Status (13)

Country Link
EP (3) EP1433219B1 (fr)
JP (1) JP4071712B2 (fr)
KR (2) KR101250060B1 (fr)
CN (1) CN1592985A (fr)
AT (1) ATE473528T1 (fr)
BR (1) BR0212843A (fr)
CA (1) CA2461886A1 (fr)
DE (1) DE60236947D1 (fr)
IL (1) IL161064A0 (fr)
MX (1) MXPA04002907A (fr)
NO (1) NO20041903L (fr)
RU (1) RU2004112757A (fr)
WO (1) WO2003028146A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005091429A1 (fr) * 2004-03-19 2005-09-29 Huawei Technologies Co., Ltd. Procede conferant la capacite de frequence de resonance d'accord pour differentes applications
CN100392910C (zh) * 2005-11-25 2008-06-04 中国科学院物理研究所 一种铁电薄膜可调带通滤波器
US8207907B2 (en) * 2006-02-16 2012-06-26 The Invention Science Fund I Llc Variable metamaterial apparatus
WO2010125806A1 (fr) * 2009-04-28 2010-11-04 日本電気株式会社 Filtre de guide d'onde et dispositif d'accès de communication
US20100295634A1 (en) 2009-05-20 2010-11-25 Tamrat Akale Tunable bandpass filter
US10181632B2 (en) * 2013-12-18 2019-01-15 Skyworks Solutions, Inc. Tunable resonators using high dielectric constant ferrite rods
RU189237U1 (ru) * 2018-02-07 2019-05-16 Федеральное государственное бюджетное научное учреждение "Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук" Сверхширокополосный полосковый фильтр
CN112864558B (zh) * 2021-02-23 2024-09-17 贵州民族大学 一种基于铁电膜的实时可控波导结构

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US325701A (en) 1885-09-08 sharpneck
US3192397A (en) * 1960-11-30 1965-06-29 Ibm Bistable circuit having an adjustable phase shifter responsive to output signal
DE3201064A1 (de) * 1982-01-15 1983-07-28 Hoechst Ag, 6230 Frankfurt "verfahren zur herstellung von natriumhydrogensulfat"
US5241291A (en) * 1991-07-05 1993-08-31 Motorola, Inc. Transmission line filter having a varactor for tuning a transmission zero
US5475350A (en) * 1992-09-29 1995-12-12 Matsushita Electric Industrial Co., Ltd. Frequency tunable resonator including a varactor
CA2150690A1 (fr) * 1992-12-01 1994-06-09 Robert M. Yandrofski Dispositifs hyperfrequence accordables comportant des films de supraconducteur a haute temperature et des films ferroelectriques
WO1994028592A1 (fr) * 1993-05-27 1994-12-08 E.I. Du Pont De Nemours And Company Circuits hyperfrequence accordables supraconducteurs/ferroelectriques a coefficient de temperature eleve
FR2714217B1 (fr) * 1993-12-17 1996-01-26 Thomson Csf Filtre hyperfréquence à résonateurs couplés accordés par des capacités variables, à structure triplaque et à agilité de fréquence.
US5496795A (en) * 1994-08-16 1996-03-05 Das; Satyendranath High TC superconducting monolithic ferroelectric junable b and pass filter
US5496796A (en) * 1994-09-20 1996-03-05 Das; Satyendranath High Tc superconducting band reject ferroelectric filter (TFF)
US5617104A (en) 1995-03-28 1997-04-01 Das; Satyendranath High Tc superconducting tunable ferroelectric transmitting system
JPH10209714A (ja) * 1996-11-19 1998-08-07 Sharp Corp 電圧制御通過帯域可変フィルタおよびそれを用いる高周波回路モジュール
US5908811A (en) * 1997-03-03 1999-06-01 Das; Satyendranath High Tc superconducting ferroelectric tunable filters

Also Published As

Publication number Publication date
EP2164129A1 (fr) 2010-03-17
JP4071712B2 (ja) 2008-04-02
KR20090074274A (ko) 2009-07-06
MXPA04002907A (es) 2004-07-05
NO20041903L (no) 2004-06-15
IL161064A0 (en) 2004-08-31
EP1433219A1 (fr) 2004-06-30
KR20040037175A (ko) 2004-05-04
WO2003028146A1 (fr) 2003-04-03
CN1592985A (zh) 2005-03-09
RU2004112757A (ru) 2005-03-27
EP1433219B1 (fr) 2010-07-07
EP2309586A1 (fr) 2011-04-13
KR101250060B1 (ko) 2013-04-03
BR0212843A (pt) 2005-06-28
JP2006503445A (ja) 2006-01-26
EP2309586B1 (fr) 2014-01-01
ATE473528T1 (de) 2010-07-15
EP2164129B1 (fr) 2013-07-17
DE60236947D1 (de) 2010-08-19
KR101036117B1 (ko) 2011-05-23

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Legal Events

Date Code Title Description
FZDE Discontinued