EP 4233129 A1 20230830 - FUNCTIONALIZED CELLULAR STRUCTURE, SANDWICH COMPOSITE STRUCTURE, MANUFACTURING METHOD, OPTIMIZATION METHOD AND ASSOCIATED DEVICES
Title (en)
FUNCTIONALIZED CELLULAR STRUCTURE, SANDWICH COMPOSITE STRUCTURE, MANUFACTURING METHOD, OPTIMIZATION METHOD AND ASSOCIATED DEVICES
Title (de)
FUNKTIONALISIERTE ZELLSTRUKTUR, SANDWICHVERBUNDSTRUKTUR, HERSTELLUNGSVERFAHREN, OPTIMIERUNGSVERFAHREN UND ZUGEHÖRIGE VORRICHTUNGEN
Title (fr)
STRUCTURE ALVÉOLAIRE FONCTIONNALISÉE, STRUCTURE COMPOSITE SANDWICH, PROCÉDÉ DE FABRICATION, PROCÉDÉ D'OPTIMISATION ET DISPOSITIFS ASSOCIÉS
Publication
Application
Priority
- FR 2010790 A 20201021
- EP 2021079256 W 20211021
Abstract (en)
[origin: WO2022084465A1] The present invention relates to an absorbent structure that is a honeycomb-type cellular structure (10) extending between two end faces and comprises tubular cells (12), each cell (12) having walls (14) delimiting said cell (12), the walls (14) extending between the two end faces, the walls (14) consisting of a dielectric material, at least one cell (12) comprising at least one strip (16) of an electrically conductive coating placed in at least one wall (14) or on a surface of at least one wall (14), the cellular structure (10) being characterized by parameters selected so that the absorbent structure provides an attenuation of at least 10 dB for each incident wave within a frequency range no less than 15 Ghz in extent.
IPC 8 full level
H01Q 17/00 (2006.01)
CPC (source: EP KR US)
H01Q 17/00 (2013.01 - EP); H01Q 17/007 (2013.01 - US); H01Q 17/008 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2022084465A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3115230 A1 20220422; FR 3115230 B1 20230414; EP 4233129 A1 20230830; JP 2023546748 A 20231107; KR 20230130607 A 20230912; US 2023395989 A1 20231207; WO 2022084465 A1 20220428
DOCDB simple family (application)
FR 2010790 A 20201021; EP 2021079256 W 20211021; EP 21798368 A 20211021; JP 2023549004 A 20211021; KR 20237013667 A 20211021; US 202118249893 A 20211021