WO2001067550A3 - Guides for rf magnetic flux - Google Patents
Guides for rf magnetic flux Download PDFInfo
- Publication number
- WO2001067550A3 WO2001067550A3 PCT/GB2001/000970 GB0100970W WO0167550A3 WO 2001067550 A3 WO2001067550 A3 WO 2001067550A3 GB 0100970 W GB0100970 W GB 0100970W WO 0167550 A3 WO0167550 A3 WO 0167550A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic flux
- ducts
- rolls
- guide
- along
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/12—Hollow waveguides
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Physical Vapour Deposition (AREA)
- Particle Accelerators (AREA)
- Coils Or Transformers For Communication (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001566218A JP2003526977A (en) | 2000-03-06 | 2001-03-06 | Guide for high frequency magnetic flux |
AU2001235874A AU2001235874A1 (en) | 2000-03-06 | 2001-03-06 | Guides for rf magnetic flux |
US10/220,734 US7170363B2 (en) | 2000-03-06 | 2001-03-06 | Guides for r.f. magnetic flux |
EP01908013A EP1273068B1 (en) | 2000-03-06 | 2001-03-06 | Guides for rf magnetic flux |
DE60137317T DE60137317D1 (en) | 2000-03-06 | 2001-03-06 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0005349.6 | 2000-03-06 | ||
GB0005349A GB2360137A (en) | 2000-03-06 | 2000-03-06 | Guides for RF magnetic flux |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001067550A2 WO2001067550A2 (en) | 2001-09-13 |
WO2001067550A3 true WO2001067550A3 (en) | 2002-04-11 |
Family
ID=9887044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2001/000970 WO2001067550A2 (en) | 2000-03-06 | 2001-03-06 | Guides for rf magnetic flux |
Country Status (10)
Country | Link |
---|---|
US (1) | US7170363B2 (en) |
EP (1) | EP1273068B1 (en) |
JP (1) | JP2003526977A (en) |
KR (1) | KR100754092B1 (en) |
CN (1) | CN1265498C (en) |
AT (1) | ATE420470T1 (en) |
AU (1) | AU2001235874A1 (en) |
DE (1) | DE60137317D1 (en) |
GB (1) | GB2360137A (en) |
WO (1) | WO2001067550A2 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2360094A (en) | 2000-03-06 | 2001-09-12 | Marconi Caswell Ltd | RF screens for MRI |
GB2360093A (en) * | 2000-03-06 | 2001-09-12 | Marconi Caswell Ltd | NMR system with magnetic flux guide |
GB2373102A (en) * | 2001-03-06 | 2002-09-11 | Marconi Caswell Ltd | Structures with magnetic properties |
KR101209979B1 (en) * | 2011-10-24 | 2012-12-07 | 엘지이노텍 주식회사 | Apparatus for shielding and apparatus for transmissing wireless power |
US9072156B2 (en) | 2013-03-15 | 2015-06-30 | Lawrence Livermore National Security, Llc | Diamagnetic composite material structure for reducing undesired electromagnetic interference and eddy currents in dielectric wall accelerators and other devices |
US10044232B2 (en) | 2014-04-04 | 2018-08-07 | Apple Inc. | Inductive power transfer using acoustic or haptic devices |
US10135303B2 (en) | 2014-05-19 | 2018-11-20 | Apple Inc. | Operating a wireless power transfer system at multiple frequencies |
US10790699B2 (en) | 2015-09-24 | 2020-09-29 | Apple Inc. | Configurable wireless transmitter device |
CN108141062B (en) | 2015-09-24 | 2021-09-24 | 苹果公司 | Configurable wireless transmitter device |
US10477741B1 (en) * | 2015-09-29 | 2019-11-12 | Apple Inc. | Communication enabled EMF shield enclosures |
US10651685B1 (en) | 2015-09-30 | 2020-05-12 | Apple Inc. | Selective activation of a wireless transmitter device |
US10734840B2 (en) | 2016-08-26 | 2020-08-04 | Apple Inc. | Shared power converter for a wireless transmitter device |
US10594160B2 (en) | 2017-01-11 | 2020-03-17 | Apple Inc. | Noise mitigation in wireless power systems |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5223849A (en) * | 1986-11-25 | 1993-06-29 | Chomerics, Inc. | Broadband electromagnetic energy absorber |
WO2000041270A1 (en) * | 1999-01-04 | 2000-07-13 | Marconi Caswell Limited | Structure with magnetic properties |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4613841A (en) * | 1983-11-30 | 1986-09-23 | General Electric Company | Integrated transformer and inductor |
US5270656A (en) * | 1992-04-24 | 1993-12-14 | The Trustees Of The University Of Pennsylvania | Biplanar RF coils for magnetic resonance imaging or spectroscopy |
US5363845A (en) * | 1993-08-13 | 1994-11-15 | Medical Advances, Inc. | Breast coil for magnetic resonance imaging |
US5760584A (en) * | 1996-08-16 | 1998-06-02 | General Electric Company | Shield for MR system RF coil provided with multiple capacitive channels for RF current flow |
DE19702256A1 (en) * | 1997-01-23 | 1998-07-30 | Philips Patentverwaltung | MR device with an MR coil arrangement |
GB2360138A (en) * | 2000-03-06 | 2001-09-12 | Marconi Caswell Ltd | Screens for RF magnetic flux |
GB2360093A (en) | 2000-03-06 | 2001-09-12 | Marconi Caswell Ltd | NMR system with magnetic flux guide |
GB2360094A (en) * | 2000-03-06 | 2001-09-12 | Marconi Caswell Ltd | RF screens for MRI |
GB2360132B (en) | 2000-03-06 | 2002-04-24 | Marconi Caswell Ltd | Structure with switchable magnetic properties |
GB0006207D0 (en) * | 2000-03-16 | 2000-05-03 | Picker Nordstar Oy | Nuclear magnetic resonance apparatus and method |
-
2000
- 2000-03-06 GB GB0005349A patent/GB2360137A/en not_active Withdrawn
-
2001
- 2001-03-06 CN CNB018091237A patent/CN1265498C/en not_active Expired - Fee Related
- 2001-03-06 AU AU2001235874A patent/AU2001235874A1/en not_active Abandoned
- 2001-03-06 JP JP2001566218A patent/JP2003526977A/en active Pending
- 2001-03-06 KR KR1020027011712A patent/KR100754092B1/en active IP Right Grant
- 2001-03-06 DE DE60137317T patent/DE60137317D1/de not_active Expired - Fee Related
- 2001-03-06 US US10/220,734 patent/US7170363B2/en not_active Expired - Lifetime
- 2001-03-06 AT AT01908013T patent/ATE420470T1/en not_active IP Right Cessation
- 2001-03-06 WO PCT/GB2001/000970 patent/WO2001067550A2/en active Application Filing
- 2001-03-06 EP EP01908013A patent/EP1273068B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5223849A (en) * | 1986-11-25 | 1993-06-29 | Chomerics, Inc. | Broadband electromagnetic energy absorber |
WO2000041270A1 (en) * | 1999-01-04 | 2000-07-13 | Marconi Caswell Limited | Structure with magnetic properties |
Non-Patent Citations (3)
Title |
---|
KWIAT D ET AL: "A DECOUPLED COIL DETECTOR ARRAY FOR FAST IMAGE ACQUISITION IN MAGNETIC RESONANCE IMAGING", MEDICAL PHYSICS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 18, no. 2, 1 March 1991 (1991-03-01), pages 251 - 265, XP000228811, ISSN: 0094-2405 * |
PENDRY J B ET AL: "MAGNETISM FROM CONDUCTORS AND ENHANCED NONLINEAR PHENOMENA", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE INC. NEW YORK, US, vol. 47, no. 11, November 1999 (1999-11-01), pages 2075 - 2084, XP000865104, ISSN: 0018-9480 * |
WILTSHIRE M C K ET AL: "Microstructured magnetic materials for RF flux guides in magnetic resonance imaging", SCIENCE, AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE,, US, vol. 291, no. 5505, 2 February 2001 (2001-02-02), pages 849 - 851, XP002169173, ISSN: 0036-8075 * |
Also Published As
Publication number | Publication date |
---|---|
WO2001067550A2 (en) | 2001-09-13 |
US7170363B2 (en) | 2007-01-30 |
EP1273068A2 (en) | 2003-01-08 |
US20030146801A1 (en) | 2003-08-07 |
CN1265498C (en) | 2006-07-19 |
KR100754092B1 (en) | 2007-08-31 |
AU2001235874A1 (en) | 2001-09-17 |
JP2003526977A (en) | 2003-09-09 |
GB2360137A (en) | 2001-09-12 |
GB0005349D0 (en) | 2000-04-26 |
DE60137317D1 (en) | 2009-02-26 |
ATE420470T1 (en) | 2009-01-15 |
EP1273068B1 (en) | 2009-01-07 |
KR20020086916A (en) | 2002-11-20 |
CN1451186A (en) | 2003-10-22 |
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