The hottest Japanese invention absorbs wireless si

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Japanese invention absorbs wireless signal paint to ensure wi

Japanese invention absorbs wireless signal paint to ensure Wi Fi security

March 30, 2009

[China paint information] with the rapid development of mobile informatization, enterprise users increasingly use wireless as a mobile communication platform, but the fracture position has never been ideal. Data show that in the third quarter of 2008, the enterprise Wi Fi market increased by more than 15% over the same period last year. At the same time, 802.11n access points increased by more than 40%, accounting for a quarter of the total revenue of the entire enterprise access points. The growth of the enterprise Wi Fi market stems from the increase in the proportion of user demand, but at the same time, more and more attention has been paid to security issues. It is understood that the losses caused to enterprises by safety problems have risen sharply from $4.7 million in 2006 to $6.6 million in 2008. This also drives equipment manufacturers to start looking for more ways to protect Wi Fi network security

wi fi security has always been the focus of controversy in the industry. If Wi Fi networks are not encrypted or adopt outdated web encryption methods, it may bring risks. Hackers attack through network vulnerabilities, or use broadband for free. In addition to encryption, there are also some other solutions. Meru has said that by hiding Wi Fi signals, Wi Fi networks can be effectively secured, including. The methods include installing energy-saving windows in buildings to block the leakage of radio signals, etc. Li Hongwei, general manager of these special top (Qingdao) tire technology Co., Ltd., said that the methods are often more expensive, and few enterprises are willing to invest in the current economic depression

so how to ensure Wi Fi network security while controlling costs? Recently, it was learned that Japanese researchers have invented a new paint, which can absorb Wi Fi signals, prevent signal leakage, and provide enterprise users with a cheap way to protect their Wi Fi networks

it is understood that using paint technology to provide security protection for high-speed Wi Fi networks is not new. As early as March, 2007, the U.S. Securities and Exchange Commission successfully used this technology to block electromagnetic signals for the purpose of protecting wireless devices and other electronic devices more than a year ago

due to the rapid development of wireless technology, enterprises are now using higher frequencies to transmit data. For example, at present, the frequency of the main electromagnetic wave is 50GHz, while the latest wireless communication tends to use the frequency of electromagnetic wave more than 100GHz

researchers say they now have a coating that can block higher frequencies. Electromagnetic group (EM) waves can only block waves when the material's magnetic field resonates at the same frequency. Wave absorption is usually composed of iron rich oxides, but the power transmitted at high frequency is more than (3) bio based chemical fiber iron absorbs electromagnetic waves. This is because the maximum resonance frequency of the standard oxide coating exceeds 48ghz

it is understood that Japan has now found a new aluminum iron oxide that can prevent frequencies almost four times higher. They used a sensitive magnetometer (a scientific instrument used to measure the intensity and/or direction of magnetic fields) to ensure that the powder can absorb electromagnetic waves up to 182ghz at room temperature. If the material is further studied, it will be combined into new metal oxides, which can absorb electromagnetic waves and even higher frequencies

due to the rich materials such as aluminum and iron used in this product, its price will not exceed the budget of IT enterprises. Researchers said that at present, 100 kilograms of samples have been produced, and the manufacturing cost is very low, about $14 per kilogram

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