Measurement of High Frequency Characteristics of Bincho and Bamboo Charcoals

Abstract

The complex permittivity and permeability of bincho and bamboo charcoal powder are measured at the frequencies from 90MHz to 2.05GHz by using the complex reflection coefficient method. The measured data are compared with the materials for the electromagnetic wave absorber such as graphitized carbon, acetylene carbon and carbon fiber in silicone rubber.