MD899Z

MD899Z - Shield against electromagnetic waves

Info

Publication number: MD899Z
Application number: MDS20140163A
Authority: MD
Inventors: Сулайман АЛСАЛИЕМ; Вячеслав ЗИНИКОВСКИЙ
Original assignee: Сулайман АЛСАЛИЕМ; Вячеслав ЗИНИКОВСКИЙ
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2015-12-31
Also published as: MD899Y

Abstract

The invention relates to the field of physics, in particular to electrodynamics, and may be used for the protection of information carriers, for example chips, against electromagnetic waves.The shield against electromagnetic waves comprises four layers, placed one above the other, where a layer (1) is made of conductive material in the form of a foil, a layer (2) is made of dielectric material, a layer (3) is made of nanostructured carbon, and a layer (4) is made of dielectric material, and the thickness of layers is of 0.01…0.05 mm.

Description

Invenţia se referă la domeniul fizicii, în special la electrodinamică, şi poate fi utilizată pentru protecţia purtătorilor de informaţie, de exemplu a cipurilor, de undele electromagnetice. The invention relates to the field of physics, in particular to electrodynamics, and can be used to protect information carriers, for example chips, from electromagnetic waves.

Este cunoscut dispozitivul de protecţie de undele electromagnetice, care include trei straturi conductoare şi două straturi dielectrice plasate între ele, unde straturile conductoare sunt executate din metal, iar grosimea lor nu depăşeşte adâncimea de penetrare a undei electromagnetice de o anumită frecvenţă, straturile dielectrice sunt executate din piezoelectrici, iar primul şi al treilea straturi conductoare sunt conectate între ele [1]. The electromagnetic wave protection device is known, which includes three conductive layers and two dielectric layers placed between them, where the conductive layers are made of metal, and their thickness does not exceed the penetration depth of the electromagnetic wave of a certain frequency, the dielectric layers are made of piezoelectrics, and the first and third conductive layers are connected to each other [1].

Dezavantajul acestui dispozitiv constă în utilizarea straturilor conductoare cu grosimea mai mică decât adâncimea de penetrare a lungimii de undă şi ceramicii inelastice pentru transformarea undei electromagnetice într-o sarcină electrică, adică utilizarea unui mecanism de ecranare cu defalcare electrică posibilă atunci când puterea sursei de unde electromagnetice este ridicată. The disadvantage of this device is the use of conductive layers with a thickness smaller than the wavelength penetration depth and inelastic ceramics to transform the electromagnetic wave into an electrical charge, i.e. the use of a shielding mechanism with possible electrical breakdown when the power of the electromagnetic wave source is high.

Problema pe care o rezolvă prezenta invenţie constă în crearea unui ecran protector cu o eficacitate mai mare de ecranare, care ar preveni citirea şi înscrierea datelor de pe purtătorii de informaţie, de exemplu a cipurilor. The problem solved by the present invention consists in creating a protective screen with a higher shielding effectiveness, which would prevent the reading and writing of data on information carriers, for example chips.

Ecranul pentru protecţie de undele electromagnetice, conform invenţiei, înlătură dezavantajul menţionat mai sus prin aceea că include patru straturi, amplasate unul peste altul, unde un strat este executat din material conductor în formă de folie, un strat este executat din material dielectric, un strat este executat din carbon nanostructurizat şi un strat este executat din material dielectric, iar grosimea straturilor este de 0,01…0,05 mm. The electromagnetic wave protection screen, according to the invention, eliminates the above-mentioned disadvantage by including four layers, placed one on top of the other, where one layer is made of conductive material in foil form, one layer is made of dielectric material, one layer is made of nanostructured carbon and one layer is made of dielectric material, and the thickness of the layers is 0.01…0.05 mm.

Invenţia se explică prin desenele din fig. 1-3, care reprezintă: The invention is explained by the drawings in Fig. 1-3, which represent:

- fig. 1, ecranul pentru protecţie de undele electromagnetice; - Fig. 1, the screen for protection from electromagnetic waves;

- fig. 2, ecranul pentru protecţie de undele electromagnetice a cipului; - Fig. 2, the chip's electromagnetic wave protection screen;

- fig.3, reflexia şi refracţia undei electromagnetice care cade pe ecran. - fig.3, reflection and refraction of the electromagnetic wave falling on the screen.

Ecranul pentru protecţie de undele electromagnetice include patru straturi, amplasate unul peste altul, unde un strat 1 este executat din material conductor în formă de folie, un strat 2 este executat din material dielectric, un strat 3 este executat din carbon nanostructurizat şi un strat 4 este executat din material dielectric, iar grosimea straturilor este de 0,01…0,05 mm. Totodată, straturi din material conductor pot fi cel puţin două şi pot fi executate din aluminiu sau alte materiale conductoare cu aceleaşi proprietăţi, iar straturile din material dielectric pot fi executate din plastic sau alte materiale dielectrice cu aceleaşi proprietăţi. The electromagnetic wave protection screen includes four layers, placed one on top of the other, where a layer 1 is made of conductive material in the form of a foil, a layer 2 is made of dielectric material, a layer 3 is made of nanostructured carbon and a layer 4 is made of dielectric material, and the thickness of the layers is 0.01…0.05 mm. At the same time, there can be at least two layers of conductive material and they can be made of aluminum or other conductive materials with the same properties, and the layers of dielectric material can be made of plastic or other dielectric materials with the same properties.

Ecranul pentru protecţie de undele electromagnetice funcţionează în modul următor. The electromagnetic wave protection screen works in the following way.

Unda electromagnetică căzând pe stratul 1, executat din material conductor în formă de folie, parţial se reflectă de la el, iar parţial refractată trece prin stratul 2 executat din material dielectric. Apoi unda refractată slăbită cade pe stratul 3, executat din carbon nanostructurizat, unde este absorbită. Stratul 4 executat din material dielectric serveşte ca protecţie împotriva unor posibile descărcări electrostatice în cazul folosirii unei surse de energie electromagnetică 6 de putere înaltă, destinată distrugerii informaţiei de pe cipul 5. Acest ecran permite obţinerea unor rezultate de ecranare într-un diapazon larg de frecvenţe, de la LF la UHF, şi capacităţi, respectiv permite obţinerea unei eficacităţi mai mari de ecranare şi protecţie a componentelor radioelectronice şi a cipurilor. The electromagnetic wave falling on layer 1, made of conductive material in the form of a foil, is partially reflected from it, and partially refracted passes through layer 2 made of dielectric material. Then the weakened refracted wave falls on layer 3, made of nanostructured carbon, where it is absorbed. Layer 4 made of dielectric material serves as protection against possible electrostatic discharges in the case of using a high-power electromagnetic energy source 6, intended to destroy information on the chip 5. This screen allows to obtain shielding results in a wide range of frequencies, from LF to UHF, and capacities, respectively, allows to obtain a higher efficiency of shielding and protection of radioelectronic components and chips.

1. RU 2168879 C1 2001.06.10 1. RU 2168879 C1 2001.06.10

Claims

1. Shield for protection from electromagnetic waves, which includes four layers, placed one on top of the other, where a layer (1) is made of conductive material in the form of a foil, a layer (2) is made of dielectric material, a layer (3) is made of nanostructured carbon, and a layer (4) is made of dielectric material, and the thickness of the layers is 0.01…0.05 mm.

2. Screen according to claim 1, wherein the number of layers of conductive material is at least 2.

3. Screen according to claim 1 and 2, wherein the layers of conductive material are made of aluminum or other conductive materials with the same properties.

4. Screen according to claim 1, wherein the layers of dielectric material are made of plastic or other dielectric materials with the same properties.