Investigation on Carbon Fiber Composites as Architectural EMI Shielding Material

EMI shielding technique by using appropriate shielding material in an enclosure is commonly effective to block signal penetration. This paper presents the investigations on EMI shielding effectiveness of multilayer carbon fiber composites for architectural shielding purposes. The properties of carbon fiber such as high thermal conductivity, corrosion resistant, high tensile strength and excellent EMI shielding property make it suitable to be applied in building construction. The concrete samples with insertion of carbon fiber sheets were undergone the EMI penetration test which is based on IEEE standard testing procedures. These customized structures are proven to reduce signal penetration significantly in the high frequency range up to 2 GHz.