Title:
ELECTROMAGNETIC RADIATION ABSORBER
Document Type and Number:
WIPO Patent Application WO2005013663
Kind Code:
A3
Abstract:
An electromagnetic radiation absorberfor absorbing radiation in the wavelength range lambdamin to lambdamax The absorber has a conductor layer in contact with a dielectric layer. The conductor layer carries a plurality of apertures of sub-wavelength dimension and the thickness of the absorber is less than lambdamin/4n, where n is the refractive index of the dielectric. The dielectric layer may be sandwiched between two conductor layers, one of which has the structure described above. The invention is also directed to various articles comprising such an absorber.
Inventors:
TREEN ANDREW SHAUN (GB)
LAWRENCE CHRISTOPHER ROBERT (GB)
SAMBLES JOHN ROY (GB)
HIBBINS ALISTAIR PAUL (GB)
LAWRENCE CHRISTOPHER ROBERT (GB)
SAMBLES JOHN ROY (GB)
HIBBINS ALISTAIR PAUL (GB)
Application Number:
PCT/GB2004/003145
Publication Date:
March 24, 2005
Filing Date:
July 19, 2004
Export Citation:
Assignee:
QINETIQ LTD (GB)
TREEN ANDREW SHAUN (GB)
LAWRENCE CHRISTOPHER ROBERT (GB)
SAMBLES JOHN ROY (GB)
HIBBINS ALISTAIR PAUL (GB)
TREEN ANDREW SHAUN (GB)
LAWRENCE CHRISTOPHER ROBERT (GB)
SAMBLES JOHN ROY (GB)
HIBBINS ALISTAIR PAUL (GB)
International Classes:
H01Q17/00; H05K9/00; (IPC1-7): H05K9/00; H01Q17/00
Foreign References:
GB2336472A | 1999-10-20 | |||
US2599944A | 1952-06-10 | |||
DE3508888A1 | 1986-09-25 |
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