Fast Optimization of Dual-Mode Dielectric Waveguide Filters Based on Surrogate Model-Assisted Optimization Algorithm

The number of resonant cavities of the dual-mode filter is reduced by half compared with that of the single-mode filter, and the structure is more compact, which can effectively reduce the quality and volume of the filter, and is more and more widely used in communication systems. On the basis of analyzing the dual-mode dielectric waveguide filter, a method based on surrogate model-assisted optimization algorithm is proposed, which can quickly design and optimize the filter, and obtain the optimal size of the dual-mode dielectric waveguide filter.