Research on modulation of digitally encoded transmission based on spoof surface plasmon polaritons

Abstract

Digital code regulation is the foundation of modern information science. Combining SSPP transmission lines with digital encoding offers greater potential for information modulation of electromagnetic waves. In this paper, a periodic SSPP transmission line structure with a frequency of 29.6 GHz and a phase shift of more than 200° is designed. Based on the dynamic switching of the controllable dispersion state, the reconfigurable digital coding phase shifting function and filtering function based on the SSPP transmission line are realized.