ABSTRACT
The application range of electromagnetic-wave-absorbing material has dramatically expanded with the development of high-speed and large-capacity information communication technology. This chapter introduces the new research area relating to the fabrication process using biomaterials for high-frequency materials, along with their characteristics of electromagnetic wave response. The operating principle of the electromagnetic wave absorber is roughly divided into conduction loss, dielectric loss, electromagnetic induction, and magnetic loss. Utilization of biomaterials having a porous structure and/or a characteristic 3D microstructure has been proposed for the development of new electromagnetic-wave-responsive materials. Faraday discovered that electricity was flowing through the coil when the magnet was moved into and out of the air core of the coil. Extending the targets of biomaterials as biotemplates can improve the performance and variations for future technology in electromagnetic wave applications. When the thickness of a metal coating formed by electroless plating is adjusted to show electroconductivity comparable to that of a bulk metal, the microcoils function as electromagnetic coils.
