A compact graphene-based dual-band band-stop filter using new hook-shaped resonator for THz applications. (January 2023)

• Record Type: Journal Article
• Authors: Zonouri, Seyed Abed; Hayati, Mohsen
• Is Part Of: Materials science in semiconductor processing. Volume 153(2023)
• Publication Date: 2023-01
• Subjects: Dual-band band-stop -- Graphene-based filter -- Hook-shaped resonator -- THz frequencies -- Tunable; Semiconductors -- Periodicals; Integrated circuits -- Materials -- Periodicals; Semiconducteurs -- Périodiques; Circuits intégrés -- Matériaux -- Périodiques; Electronic journals; 621.38152
• DOI: 10.1016/j.mssp.2022.107150
• Languages: English
• ISSNs: 1369-8001

Abstract

Abstract: This paper presents a plasmonic Dual-band band-stop filter for terahertz frequencies using new graphene hook-shaped resonators. The structure of this filter is formed by placing two novel symmetrical resonators in the main waveguide path. The finite-difference time-domain (FDTD) and transmission line methods are used to analyze the proposed filter. This adjustable filter has a high-quality factor and two resonance modes in frequencies of 4.1 THz and 13.8 THz. Furthermore, the simulation results show a shift in the resonant frequencies upon changing the base length of the resonators. The designed filter has very small dimensions (350 nm × 500 nm) and can be a proper candidate for integrated optical circuits due to its compact structure and simple design.