64009160

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RFI and EMI shielding and absorbing materials are essential components in shielding electronic systems from radio frequency interference (RFI) and electromagnetic interference (EMI). The 64009160 application field and working principle of RFI and EMI shielding and absorbing materials, covers a wide range of applications and is used for both radio frequency attenuation and electromagnetic absorption. When used correctly, these materials can significantly reduce RFI and EMI interference and protect electronic systems from harmful radiation.

The 64009160 application field includes but is not limited to traditional power supplies, IT infrastructure, communication systems, medical electronics, and automotive electronics. These materials are also commonly used in aerospace, military, and industrial applications. The 64009160 working principle revolves around physical barriers that block or absorb transmission signals. Radio waves, microwaves, and other electromagnetic radiation emitted from electrical circuits or other sources are blocked, absorbed, or diffused by the shielding materials. This results in the effectiveness and reliability of the product, system, or equipment.

The types of shielding and absorbing materials most commonly used in RFI and EMI are metallic or conductive materials that are able to effectively provide conductive shielding. Commonly used materials include steel, aluminum, copper, magnesium, nickel-Iron alloys, and Nickel-plated steel. Some applications require the shielding to be reinforced with a highly conductive overlay, such as silver, tin, or gold plating.

In addition to providing physical barriers, certain types of materials can also absorb radio frequency emissions. These materials consist of absorbent material that is fine-structured and contains a large surface area. Examples of common absorber materials include carbon-loaded foams, absorbing foams, carbon-loaded paints, absorbing foams, and absorbent ceramics. The absorber materials are usually housed in a suitable container which provides electromagnetic shielding and reduces the magnitude of the interfering signal.

Various types of tests are used to measure the performance of shielding and absorbing materials, such as RF shielding effectiveness, EMI absorption effectiveness, and EMI leakage. The primary tests used to measure shielding effectiveness are the single- or multi-axis CW test and the swept-frequency test. The absorbers effectiveness is evaluated using the single- or multi-axis CW test. The leakage test evaluates the shielding performance by measuring the amount of power lost through shielding and is used to determine if the shielding material is of high quality.

RFI and EMI shielding and absorbing materials are essential in providing protection to electronic systems from RFI and EMI interference. Different types of materials can be used depending on the application, such as ferrous, non-magnetic, and conductive materials. The performance of the shielding and absorption materials can be determined through a variety of tests, such as the single- or multi-axis CW test and the swept-frequency test. With proper use and testing, reliable and efficient shielding and absorption are achievable.

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