GB0406558D0 - Structures with magnetic properties - Google Patents
Structures with magnetic propertiesInfo
- Publication number
- GB0406558D0 GB0406558D0 GBGB0406558.7A GB0406558A GB0406558D0 GB 0406558 D0 GB0406558 D0 GB 0406558D0 GB 0406558 A GB0406558 A GB 0406558A GB 0406558 D0 GB0406558 D0 GB 0406558D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- roll
- width
- wound
- sleeve
- overhang
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/006—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
A microstructured material consists of an array of Swiss roll resonant elements having capacitance and inductance such that the structure exhibits a predetermined magnetic permeability at r.f. frequencies, wherein at least one of the elongate means consisting for example of a roll of conducting material 3 wound interspersed with insulating material on a mandrel 4 is tuned to a desired frequency by applying a sleeve wound into a roll, to an end of the Swiss roll at a given overhang x, and of an appropriate width, which can be determined for example from reference measurements showing the width necessary to make a desired adjustment. The adjustment could also be made by selecting a suitable overhang for a given width of sleeve.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0124088A GB2380860A (en) | 2001-10-08 | 2001-10-08 | Structures with magnetic properties |
PCT/GB2002/004376 WO2003032438A1 (en) | 2001-10-08 | 2002-09-27 | Structures with magnetic properties |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0406558D0 true GB0406558D0 (en) | 2004-04-28 |
GB2396969A GB2396969A (en) | 2004-07-07 |
Family
ID=9923393
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0124088A Withdrawn GB2380860A (en) | 2001-10-08 | 2001-10-08 | Structures with magnetic properties |
GB0406558A Withdrawn GB2396969A (en) | 2001-10-08 | 2002-09-27 | Structures with magnetic properties |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0124088A Withdrawn GB2380860A (en) | 2001-10-08 | 2001-10-08 | Structures with magnetic properties |
Country Status (2)
Country | Link |
---|---|
GB (2) | GB2380860A (en) |
WO (1) | WO2003032438A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0130755B1 (en) * | 1990-01-25 | 1998-04-14 | 요시유키 나이토 | Broadband wave absorber |
JP3030453B2 (en) * | 1995-12-27 | 2000-04-10 | 道晴 高橋 | Broadband radio wave absorber |
GB9900034D0 (en) * | 1999-01-04 | 1999-02-24 | Marconi Electronic Syst Ltd | Structure with magnetic properties |
GB2360138A (en) * | 2000-03-06 | 2001-09-12 | Marconi Caswell Ltd | Screens for RF magnetic flux |
-
2001
- 2001-10-08 GB GB0124088A patent/GB2380860A/en not_active Withdrawn
-
2002
- 2002-09-27 GB GB0406558A patent/GB2396969A/en not_active Withdrawn
- 2002-09-27 WO PCT/GB2002/004376 patent/WO2003032438A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
GB2380860A (en) | 2003-04-16 |
WO2003032438A1 (en) | 2003-04-17 |
GB2396969A (en) | 2004-07-07 |
GB0124088D0 (en) | 2001-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |