Analysis of attenuation characteristics of carbon nanofibers to 94GHz millimeter wave

Abstract

Abstract In order to investigate the interference characteristics of carbon nanofibers to 94GHz millimeter wave, we established the corresponding electromagnetic field integral operator equation according to the conductivity and dielectric properties of carbon nanofibers, and solved the equation by the method of moments. The mass extinction coefficient of carbon nanofibers to 94GHz millimeter wave was calculated and analyzed. Lamber-Beer law was used to analyze the attenuation characteristics of carbon nanofibers smoke to 94GHz millimeter wave. The relationships between transmittance and size, conductivity, smoke concentration and smoke thickness of carbon nanofibers were obtained. The results show that the optimum conductivity of carbon nanofibers is related to their size. The longer the length of carbon nanofibers is, the smaller the diameter is, and the more significant the attenuation effect to 94GHz millimeter wave is.