چكيده به لاتين
In this dissertation, by designing a cell that has the ability to rotate the polarization variable, we have succeeded in designing a metaserface surface that has the ability to scatter the return wave to the radar.The design of this cell is done automatically, based on optimization algorithms. Before starting the design of the cell, the dimensions and material of its substrate must be known. This cell is designed as a 16 mm square with a composite substrate consisting of FR4 and air. Automated design is performed using a discrete particle swarm optimization algorithm.After completing the design of the cell with the mentioned algorithm, due to the fact that the cell is designed with periodic boundary conditions, it is multiplied as a 7 * 7 array and then 4 arrays that rotate 90 degrees relative to each other. We have put them together and formed the final radar evasion level.This level has a 10 dB radar cross-section reduction bandwidth from 2.92 to 10.49 GHz, equivalent to 113%. Finally, this metaserface was constructed and after measuring the radar cross section reduction under vertical radiation, a relatively good agreement was observed between the measurement result and the simulation.
