Super-resolution and frequency spectrum characteristics of micro-structured array based on time reversal electromagnetic wave

This paper has a research on super-resolution and frequency spectrum characteristics of micro-structured array. It proposes a model with different distributions of thin metal wires placed around coaxial probes to verify the filter effect of loaded metal wires on signal frequency spectrum. With time reversal technique, it has been proved that under random loaded metal wires, single-frequency signals have the same super-resolution focusing properties with the broadband signals. Additionally, this paper analyzes and concludes the variation of signal spectrums as well as the effects on super-resolution performance for different uniform distributions of wires. The analyzed and simulated results have important guiding significance to the modeling, quantifiable design and analysis of novel micro-structured array used in multi-antenna wireless communication system with super-resolution characteristics.