Abstract: The minimum reflection criterion is proposed,and the electric performances of an actual C- sandwich are optimized with genetic algorithm(GA) to reduce the influence of radome on the false alarm probability and the blinking lobe level of radar.The actual C-sandwich considered is a structure of 14 layers,in which the rainproof layer,adhesive layer and resin transition etc are included.The material database of each layer is set up in terms of page-layout storage technique to bring about the mix-coding of continuous numerical variables and discrete non- numerical variables in a chromosome.The numeric calculation shows that the Optimization results in this paper are prior to those of maximum transmission criterion.

Key words: Radome, C-sandwich, Genetic Algorithm (GA), minimum reflection criterion