3M CN4490 1/2" X 2"-100

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RFI and EMI shielding and absorbing materials have always been an important component of communication systems and networks. 3M CN4490 1/2" X 2"-100 is one of the better-known commercial products used for this purpose. This article seeks to provide an overview of the applications and working principle of 3M CN4490 1/2" X 2"-100.

The 3M CN4490 1/2" X 2"-100 is a type of shielding and absorption material designed to be used in a variety of different communication systems and networks, anywhere from radio and TV broadcasting to cellular phones and wireless networks. The material itself is a composite shielding and absorbent material made up of multiple layers of pieces of metalized fabrics and substrates which are designed to form a highly attenuative barrier layer that is effective in reducing the transmission of RFI and EMI interference from one system or device to another.

As a multi-layer composite shielding material, the 3M CN4490 1/2" X 2"-100 is designed to be used mainly in thin cable designs such as cellular phones, wireless networks and radio and TV broadcasting systems. This type of shielding material is typically used to reduce the amount of RFI interference that is present in a system. This is done by creating a barrier layer that attenuates the RFI signals, preventing them from passing from one system to another. This is done by having the metalized fabrics and substrates that make up the composite shield to act as a barrier, absorbing the signals before they can travel to the other system.

In addition to being used to reduce RFI interference in communication systems, the 3M CN4490 1/2" X 2"-100 is also used to absorb electromagnetic interference (EMI) from other devices. By having its multiple layer design, this type of shielding material helps to reduce the amount of EMI, providing better overall performance and giving protection from interference by other devices in the same environment.

In terms of practical applications, the 3M CN4490 1/2" X 2"-100 is typically used to shield cellular phones, wireless networks, radio and TV broadcasting systems and other communication networks and devices from RFI and EMI interference. It is also often used to reduce the amount of crosstalk between devices, providing better protection and performance for communication devices. To be used effectively, the 3M CN4490 1/2" X 2"-100 shielding and absorption material should be applied as close to the device or system that is being protected as possible, so that the shielding material can provide the maximum amount of protection from interference.

Overall, the 3M CN4490 1/2" X 2"-100 shielding and absorption material is a common RFI and EMI shielding material that is used widely in a variety of different communication systems and networks. It is designed to be used mainly in thin cable designs, acting as a barrier layer that attenuates RFI and EMI signals before they can be passed from one device or system to another. This type of shielding material is typically used to reduce crosstalk between devices, and to increase the overall performance and protection of communication systems and networks.

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