EP 3529858 A1 20190828 - COATING FOR THE CONCEALMENT OF OBJECTS FROM THE ELECTROMAGNETIC RADIATION OF ANTENNAS
Title (en)
COATING FOR THE CONCEALMENT OF OBJECTS FROM THE ELECTROMAGNETIC RADIATION OF ANTENNAS
Title (de)
BESCHICHTUNG ZUR VERBERGUNG VON OBJEKTEN VOR DER ELEKTROMAGNETISCHEN STRAHLUNG VON ANTENNEN
Title (fr)
REVÊTEMENT POUR LA DISSIMULATION D'OBJETS AU RAYONNEMENT ÉLECTROMAGNÉTIQUE D'ANTENNES
Publication
Application
Priority
- FR 1660282 A 20161024
- FR 2017052938 W 20171024
Abstract (en)
[origin: WO2018078282A1] The invention relates to an assembly comprising a device (20) and an obstacle (10) subjected to an incident electromagnetic wave of wavelength λ. The obstacle (10) is formed from an electrically conductive material and has a substantially cylindrical shape of transverse dimensions r with respect to a longitudinal axis (O; ez), said longitudinal axis is substantially perpendicular to a propagation direction of the incident electromagnetic wave. The obstacle (10) further has a maximum transverse dimension d such that the ratio d/λ is less than 1. The device (20) is placed on all or part of a surface of the obstacle (10) and comprises a sleeve with a dielectric coating (21) of equivalent relative dielectric permittivity εreq, of height hp along a longitudinal axis of said sleeve, substantially equal to formula (A), and a sleeve with an electrically conductive coating (22) placed on the periphery of the dielectric coating (21).
IPC 8 full level
H01Q 1/28 (2006.01); H01Q 1/52 (2006.01); H01Q 19/02 (2006.01)
CPC (source: EP US)
H01Q 1/28 (2013.01 - EP); H01Q 1/3233 (2013.01 - US); H01Q 1/38 (2013.01 - US); H01Q 1/52 (2013.01 - EP); H01Q 17/00 (2013.01 - US); H01Q 19/021 (2013.01 - EP)
Citation (search report)
See references of WO 2018078282A1
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
DOCDB simple family (publication)
FR 3058001 A1 20180427; FR 3058001 B1 20210910; CN 109964366 A 20190702; EP 3529858 A1 20190828; EP 3529858 B1 20220223; US 11381002 B2 20220705; US 2019334248 A1 20191031; WO 2018078282 A1 20180503
DOCDB simple family (application)
FR 1660282 A 20161024; CN 201780065964 A 20171024; EP 17804605 A 20171024; FR 2017052938 W 20171024; US 201716342616 A 20171024