Electromagnetic simulation optimization method and system

Abstract

The invention discloses an electromagnetic simulation optimization method and system, comprising: setting the simulation area according to the size and complexity of the electromagnetic simulation target; selecting a solution mode, a signal source mode and an excitation mode according to the type of the electromagnetic simulation target; The shape and geometric size of the simulation target structure are selected and the number of grids is set, and the simulation area is meshed; the three-dimensional model of the electromagnetic simulation target is established in the simulation area; the simulation area where the three-dimensional model is located is Boundary condition setting; determine the frequency range and frequency scanning step of electromagnetic simulation; based on the solution mode, signal source mode, excitation mode, boundary conditions, frequency range and frequency scanning step, use OTS‑FDTD algorithm to solve and obtain transient data analysis Results, EM simulation results, and graphical display of results. The invention enables the simulation efficiency and calculation accuracy of the antenna array and the electric and super electric structure to be increased hundreds of times.

Description

technical field [0001] The present invention relates to the technical field of electromagnetic simulation, in particular to an electromagnetic simulation optimization method and system, which can be better applied to the fields of electromagnetic simulation of radio and super-electric complexes, phased array antennas, whole satellites, and complete machines. Background technique [0002] Electromagnetic simulation analysis research has extensive and important uses in aerospace, weaponry, ships and starships, and daily communications. Therefore, in the era of rapid information development, research on electromagnetic simulation technology still attracts a large number of researchers and engineers. As an important numerical method for electromagnetic analysis, the finite-difference time-domain method (FDTD) has been widely used in problems such as electromagnetic absorption boundaries and far-field radiation. Based on the finite difference time domain method, some commercial s...

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Problems solved by technology

[0003] The traditional finite-difference time-domain simulation analysis process is constrained by the Courant stability condition, and is limited by grid precision in time and space, which leads to the inability to greatly improve the efficiency and accuracy of numerical simulation analysis. For large-scale phased array antennas, the simulation analysis and calculation of complex electromagnetic environments with large electric and super electric fields cannot converge or the calculation is slow, and the requirements for the computer's operating memory are extremely strict.

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