Optimization of multilayered ZnO whisker radar absorbing coatings using microgenetic algorithm

An optimization technique based on the microgenetic algorithm (MGA) is presented for the design of multilayered radar absorbing materials made of tetrapod-shaped ZnO whisker in this paper. The fast optimization procedure is designed for a given maximum thickness and the optimization conditions are different in order to meet the practical requirements in the different frequency bands (the range of 2/spl sim/18GHz). The effects of the thickness, the number of layers, and the restrained conditions on the optimization results are discussed in detail.