Design and simulation of a new type of stealthy material are presented, including theory, methodology, and results/discussion. This material consists of a three-dimensional periodic lattice of SiC ceramic dielectric rods with SiO2 as matrix. Transmission, reflection and absorption coefficients of the material are calculated. Proper parameters which meet the stealthy requirements are obtained from the numerical calculation. It's found that when conductivity is equal to 1 x 10(0.4) Sm-1, the maximum absorption loss is got at 6 GHz. The main advantages of this material are light-weight, high temperature stability, and high impedance matching the free space. (C) 2006 Elsevier Ltd. All rights reserved.