Joint Optimization of Mechanical and EM properties of Kagome Frequency Selective Radome

Abstract

Conventional lattice sandwich structure frequency selective radome is loaded on the structure and the frequency selection surface does not consider the optimization of both mechanical and electromagnetic properties which leads to the disadvantage that the designed structure does not reach the optimal level. As we know that the Kagome lattice sandwich structure has excellent mechanical performance. So, it can optimize the radome mechanical structure by introducing the Kagome structure into the design of frequency selective radome. In this paper, through the joint simulation of mechanical and electromagnetic performance, the joint optimization of mechanical and electromagnetic properties of the Kagome structure is realized. First, the Kagome lattice sandwich structure is established, and the dielectric constants of the skin and core are determined according to electromagnetic simulation and data retrieval. Second, COMSOL and CST simulation tools software are used to analyze the influence of core rod radius, core rod included angle, and skin thickness on mechanical properties and electromagnetic properties. At last, through the multidisciplinary optimization of the Kagome lattice sandwich structure, an optimized design scheme with good electromagnetic and mechanical properties is finally obtained which has been verified by simulation.