학술논문
Dispersion Derivation of Space-Time Modulated Spoof Surface Plasmon Polaritons
Document Type
Conference
Author
Source
2023 International Applied Computational Electromagnetics Society Symposium (ACES-China) Applied Computational Electromagnetics Society Symposium (ACES-China), 2023 International. :1-2 Aug, 2023
Subject
Language
Abstract
Based on the space-time modulation theory, we analyze the dispersion relation of spoof surface plasmon polariton (SSPP). We prove that asymmetric band gap occurs in general periodic space-time modulated media. In this inclined band gap, the forward and backward harmonics exhibit different phases and group velocities, so the reciprocity can be broken. Finally, we can achieve a higher isolation level through the corresponding design of SSPP.