Novel compact and efficient electromagnetic switching system for controlled wave propagation

¹ Laboratory of Materials, Waves, Energy and Environment, Team of Acoustics, Photonics and Materials, Faculty of Sciences, Mohamed Frist University, Oujda, Morocco
² Institut d’Electronique, de Microélectronique et de Nanotechnologie (IEMN), UMR CNRS 8520 Université de Lille, 59650 Villeneuve d’Ascq, France

^* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

This study proposes a novel electromagnetic switching system designed to control wave propagation in the MHz frequency range. The proposed configuration consists of two input channels and one output channel. Each input channel includes a resonator of height strongly influences electromagnetic waves through the system. By adjusting the resonator height in each input channel, the switching process is efficiently controlled. We use the transfer matrix method (TMM), which provides a clear understanding of how change in the geometrical parameter of the resonator affect the transmission rates in the output channel. The obtained analytical results are validated through Finite Element Method (FEM) simulations performed in COMSOL. Our results show that waves traveling from input channel 1 to the output channel (ON state) with a transmission rate T₁₃ =1, while waves from input channel 2 to the output channel (OFF state) are almost completely annulled, with T₂₃ approaching zero. When the resonator heights are modified, the propagation path is reversed, demonstrating a clear and reversible switching effect. These findings confirm that the proposed photonic device enables precise and stable control of electromagnetic waves transmission.