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Electromagentic wave absorption film structure and making method thereof

A technology for absorbing films and electromagnetic waves, applied in chemical instruments and methods, electrical components, other chemical processes, etc., and can solve problems such as large thickness

Inactive Publication Date: 2007-01-31
严 立贤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the various known anti-electromagnetic wave devices are all thick structures, thus limiting their scope of application, especially the application of electronic products that are more and more particular about light, thin and small, such as mobile phones.
Moreover, although the known anti-electromagnetic wave devices claim that their shielding effect is very good, in fact these anti-electromagnetic wave devices still emit most of the electromagnetic waves from their edges.

Method used

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  • Electromagentic wave absorption film structure and making method thereof
  • Electromagentic wave absorption film structure and making method thereof
  • Electromagentic wave absorption film structure and making method thereof

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Embodiment Construction

[0040] The present invention is an electromagnetic wave absorbing film structure and its manufacturing method, which uses the principle of wave destructive interference to achieve the elimination of electromagnetic waves to achieve the purpose of absorbing electromagnetic waves.

[0041] First of all, the principle of destructive interference will be explained first. The so-called destructive interference means that when two waves of the same source and opposite directions meet, the crest of one wave is superimposed on the trough of the other wave, so that the two waves cancel each other out, the following invention will be based on this principle, and the description of the invention will be carried out.

[0042] see figure 1 , which is a schematic diagram of an embodiment of the present invention, wherein in order to facilitate the understanding of the positional relationship between the electromagnetic wave absorbing film structure of the present invention and the object to...

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Abstract

The invention provides the structure and its manufacturing method for a kind of electromagnetic wave absorbing film, which includes a composite layer with the thickness of one-quarter wavelength of the absorbed electromagnetic wave to offset it in the principle of phase destructive interference and a reflective layer on the surface of the composite one. Furthermore, there are absorbing and reflective particles with double-deck and monolayer structure to offset electromagnetic wave by forming more absorption, reflection and interference.

Description

technical field [0001] The invention relates to a material for preventing electromagnetic waves, in particular to an electromagnetic wave absorbing thin film structure and a manufacturing method thereof formed by using the principle of wave phase cancellation. Background technique [0002] With the continuous increase in the functions of computers, communications, and consumer computer products, as well as digitization, high-frequency, and popularization, the human body is exposed to more and more opportunities for high-energy electromagnetic waves, causing harm to human health and increasing the incidence of leukemia and brain tumors. , DNA damage and other disease probability. According to research, when the electromagnetic wave exceeds 60 Hz, it will cause damage to the DNA structure of human cells; even in some foreign research reports, it has been pointed out that mobile phones can cause temporary memory loss and reduced behavioral ability to the human brain. Just beca...

Claims

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Application Information

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IPC IPC(8): H05K9/00G12B17/02C09K3/00
Inventor 严立贤
Owner 严 立贤