eur op eanexhibitionofcreati vityandinnovation - Europe Direct Iasi

EUROINVENT 2013
National Institute of Research &
Development for Technical Physics, Iasi
33.1.
Selective shielding system for high frequency
Title EN
electromagnetic radiation
Authors CHIRIAC Horia, ÓVÁRI Tibor-Adrian, ABABEI Gabriel.
Institution National Institute of R&D for Technical Physics
Patent no. Patent application No. a 2010 01173/25.11.2010
The invention refers to one selective shielding system which
allows the selective shielding of the electromagnetic
radiation in the 500 MHz-20GHz range, simultaneously and
selectively for several frequency bands, with the central
radiation frequency controlled through the lengths of the
microwires by combining the magnetic properties of the
wires with their geometrical distribution. The selective
shielding system consists in CoFeSiB or FeSiB amorphous
Description
magnetic glass-coated microwires with diameters ranging
EN
between 10 µm and 30 µm and different lengths, in the
centimeter range, parallel aligned in successive rows or
randomly disposed on a nylon foil impregnated with an
adhesive superficial layer, or dispersed in a dielectric matrix.
Applications:
• electromagnetic shielding
• smart composite materials industry
• security applications.
Class no. 5. Industrial and laboratory equipments
1
2
Image/
Photo
1. Miniature electromagnetically shielded room.
2. Selective shielding system for the simultaneous shielding
of several frequencies of the GSM electromagnetic field
F = 0.8MHz; F = 0.9GHz; F = 2.1GHz.
NATIONAL
202