Structure Reconstruction Method in the Multi-port Cavity Based on Broadband Time-Reversal

This paper mainly discusses the reconstruction method of the scattering structure in a multi-port cavity. The time-reversed electromagnetic method is used to analyze the effect of structural reconstruction with scatterers of different side lengths and permittivity, and with different reconstruction signals. The results show that using broadband signals and superimposing multi-port time-reversed fields have positive effects on structural reconstruction. This technique is expected to provide a new idea for the structural design of multi-port cavity component.