CA2206659A1 - Electromagnetic resonant filter - Google Patents

Electromagnetic resonant filter

Info

Publication number
CA2206659A1
CA2206659A1 CA2206659A CA2206659A CA2206659A1 CA 2206659 A1 CA2206659 A1 CA 2206659A1 CA 2206659 A CA2206659 A CA 2206659A CA 2206659 A CA2206659 A CA 2206659A CA 2206659 A1 CA2206659 A1 CA 2206659A1
Authority
CA
Canada
Prior art keywords
resonators
housing
filter
cells
resonant filter
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.)
Granted
Application number
CA2206659A
Other languages
French (fr)
Other versions
CA2206659C (en
Inventor
Robert D. Lithgow
James Michael Peters
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.)
Llinois Superconductor Corp
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 CA2206659A1 publication Critical patent/CA2206659A1/en
Application granted granted Critical
Publication of CA2206659C publication Critical patent/CA2206659C/en
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
    • H01P1/207—Hollow waveguide filters
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/70—High TC, above 30 k, superconducting device, article, or structured stock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/825—Apparatus per se, device per se, or process of making or operating same
    • Y10S505/866—Wave transmission line, network, waveguide, or microwave storage device

Abstract

A filter for processing electromagnetic signals has a housing with resonators located inside the cavity of that housing. The resonators, which may be made in part from superconducting material, have rounded exterior surfaces without corners to provide a more desirable coating surface and uniform electric field around the resonators. The filter housing may be composed of a plurality of housing cells, each containing a resonator. These cells can be removably attached to other cells so that resonators may be added to or removed from the filter as may be required for a particular application.
CA002206659A 1994-12-02 1995-11-30 Electromagnetic resonant filter Expired - Fee Related CA2206659C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/349,060 1994-12-02
US08/349,060 US5616540A (en) 1994-12-02 1994-12-02 Electromagnetic resonant filter comprising cylindrically curved split ring resonators
PCT/US1995/015594 WO1996017398A1 (en) 1994-12-02 1995-11-30 Electromagnetic resonant filter

Publications (2)

Publication Number Publication Date
CA2206659A1 true CA2206659A1 (en) 1996-06-06
CA2206659C CA2206659C (en) 2000-09-26

Family

ID=23370753

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002206659A Expired - Fee Related CA2206659C (en) 1994-12-02 1995-11-30 Electromagnetic resonant filter

Country Status (9)

Country Link
US (2) US5616540A (en)
EP (1) EP0795208B1 (en)
JP (1) JPH11511918A (en)
CN (1) CN1173243A (en)
AT (1) ATE205966T1 (en)
AU (1) AU698130B2 (en)
CA (1) CA2206659C (en)
DE (1) DE69522823T2 (en)
WO (1) WO1996017398A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5616540A (en) * 1994-12-02 1997-04-01 Illinois Superconductor Corporation Electromagnetic resonant filter comprising cylindrically curved split ring resonators
US5843871A (en) * 1995-11-13 1998-12-01 Illinois Superconductor Corporation Electromagnetic filter having a transmission line disposed in a cover of the filter housing
US5838213A (en) * 1996-09-16 1998-11-17 Illinois Superconductor Corporation Electromagnetic filter having side-coupled resonators each located in a plane
US5909159A (en) * 1996-09-19 1999-06-01 Illinois Superconductor Corp. Aperture for coupling in an electromagnetic filter
US6711394B2 (en) 1998-08-06 2004-03-23 Isco International, Inc. RF receiver having cascaded filters and an intermediate amplifier stage
US6046658A (en) * 1998-09-15 2000-04-04 Hughes Electronics Corporation Microwave filter having cascaded subfilters with preset electrical responses
US6314309B1 (en) * 1998-09-22 2001-11-06 Illinois Superconductor Corp. Dual operation mode all temperature filter using superconducting resonators
JP3424594B2 (en) * 1999-04-20 2003-07-07 日本電気株式会社 Superconducting filter device, manufacturing method thereof, and filtering adjustment method
US6777377B2 (en) * 2001-12-03 2004-08-17 Wyo-Ben, Inc. Composition for use in sealing a porous subterranean formation, and methods of making and using
US6894584B2 (en) 2002-08-12 2005-05-17 Isco International, Inc. Thin film resonators
US7061220B1 (en) 2004-06-24 2006-06-13 The United States Of America As Represented By The Secretary Of The Army Passive radio frequency power spectrum analyzer
ES2261028B1 (en) * 2004-08-20 2007-11-16 Universidad Publica De Navarra FREQUENCY FILTER AND SELECTIVE SURFACES.
US20060077243A1 (en) * 2004-10-08 2006-04-13 Edwards Paul A System and method for ink jet printing of solvent/oil based inks using ink-receptive coatings
US20060077244A1 (en) * 2004-10-08 2006-04-13 Edwards Paul A System and method for ink jet printing of water-based inks using ink-receptive coating
US20060075917A1 (en) * 2004-10-08 2006-04-13 Edwards Paul A Smooth finish UV ink system and method
US20060075916A1 (en) * 2004-10-08 2006-04-13 Edwards Paul A System and method for ink jet printing of water-based inks using aesthetically pleasing ink-receptive coatings
US7828412B2 (en) 2006-09-08 2010-11-09 Electronics For Imaging, Inc. Ink jet printer
US8100507B2 (en) * 2006-09-27 2012-01-24 Electronics For Imaging, Inc. Industrial ink jet printer
US7770999B2 (en) * 2006-09-27 2010-08-10 Electronics For Imaging, Inc. Sonic leak testing on ink delivery systems and ink jet heads
CN103187605A (en) * 2011-12-30 2013-07-03 北京有色金属研究总院 Low loss microwave cavity filter with high temperature superconducting block and manufacturing method thereof
CN105792562A (en) * 2014-12-23 2016-07-20 中国电子科技集团公司第十八研究所 RHU shell with thermal expansion matching performance

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446429A (en) * 1981-10-09 1984-05-01 Medical College Of Wisconsin Microwave resonator
US4504788A (en) * 1982-09-03 1985-03-12 The Medical College Of Wisconsin, Inc. Enclosed loop-gap resonator
US4725779A (en) * 1985-05-08 1988-02-16 Mcw Research Foundation, Inc. NMR local coil with improved decoupling
US4728779A (en) * 1985-09-27 1988-03-01 Tdk Corporation PTC heating device
US4841249A (en) * 1986-10-28 1989-06-20 Siemens Aktiengesellschaft Truncated cone shaped surface resonator for nuclear magnetic resonance tomography
US5272132A (en) * 1987-03-16 1993-12-21 At&T Bell Laboratories Apparatus comprising a ceramic superconductive body and method for producing such a body
JPS63269605A (en) * 1987-04-27 1988-11-07 Yokogawa Medical Syst Ltd One-turn loop resonance circuit
US5157017A (en) * 1987-06-12 1992-10-20 At&T Bell Laboratories Method of fabricating a superconductive body
US5011823A (en) * 1987-06-12 1991-04-30 At&T Bell Laboratories Fabrication of oxide superconductors by melt growth method
US5051704A (en) * 1990-02-06 1991-09-24 Motorola, Inc. Feedforward distortion cancellation circuit
US5051714A (en) * 1990-03-08 1991-09-24 Alcatel Na, Inc. Modular resonant cavity, modular dielectric notch resonator and modular dielectric notch filter
US5179074A (en) * 1991-01-24 1993-01-12 Space Systems/Loral, Inc. Hybrid dielectric resonator/high temperature superconductor filter
US5324713A (en) * 1991-11-05 1994-06-28 E. I. Du Pont De Nemours And Company High temperature superconductor support structures for dielectric resonator
US5340797A (en) * 1993-01-29 1994-08-23 Illinois Superconductor Corporation Superconducting 123YBaCu-oxide produced at low temperatures
US5616540A (en) * 1994-12-02 1997-04-01 Illinois Superconductor Corporation Electromagnetic resonant filter comprising cylindrically curved split ring resonators

Also Published As

Publication number Publication date
DE69522823T2 (en) 2002-04-11
CA2206659C (en) 2000-09-26
AU698130B2 (en) 1998-10-22
AU4412996A (en) 1996-06-19
WO1996017398A1 (en) 1996-06-06
JPH11511918A (en) 1999-10-12
US5919736A (en) 1999-07-06
ATE205966T1 (en) 2001-10-15
EP0795208B1 (en) 2001-09-19
EP0795208A1 (en) 1997-09-17
US5616540A (en) 1997-04-01
DE69522823D1 (en) 2001-10-25
CN1173243A (en) 1998-02-11

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20031201