CA2461886A1 - Filtres passe-bande syntonisables par voie electrique - Google Patents
Filtres passe-bande syntonisables par voie electrique Download PDFInfo
- 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
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.
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)
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)
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 |
-
2002
- 2002-09-27 AT AT02778409T patent/ATE473528T1/de not_active IP Right Cessation
- 2002-09-27 IL IL16106402A patent/IL161064A0/xx unknown
- 2002-09-27 RU RU2004112757/09A patent/RU2004112757A/ru not_active Application Discontinuation
- 2002-09-27 DE DE60236947T patent/DE60236947D1/de not_active Expired - Lifetime
- 2002-09-27 JP JP2003531553A patent/JP4071712B2/ja not_active Expired - Fee Related
- 2002-09-27 MX MXPA04002907A patent/MXPA04002907A/es active IP Right Grant
- 2002-09-27 WO PCT/US2002/031118 patent/WO2003028146A1/fr active Application Filing
- 2002-09-27 CA CA002461886A patent/CA2461886A1/fr not_active Abandoned
- 2002-09-27 KR KR1020097011258A patent/KR101250060B1/ko active IP Right Grant
- 2002-09-27 BR BR0212843-8A patent/BR0212843A/pt not_active IP Right Cessation
- 2002-09-27 KR KR1020047004545A patent/KR101036117B1/ko active IP Right Grant
- 2002-09-27 CN CNA028233344A patent/CN1592985A/zh active Pending
- 2002-09-27 EP EP02778409A patent/EP1433219B1/fr not_active Expired - Lifetime
- 2002-09-27 EP EP10185327.3A patent/EP2309586B1/fr not_active Expired - Lifetime
- 2002-09-27 EP EP09177702.9A patent/EP2164129B1/fr not_active Expired - Lifetime
-
2004
- 2004-04-26 NO NO20041903A patent/NO20041903L/no not_active Application Discontinuation
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 |