Dual-band Bandpass Plasmonic Filter Based on Effective Localized Surface Plasmon Resonators

Autor: Zixiang Zhou, Liangliang Liu, Xinhua Li, Jinrui Shen, Guodong Han, Zhuo Li
Rok vydání: 2023
Předmět:
Zdroj: The Applied Computational Electromagnetics Society Journal (ACES).
ISSN: 1943-5711
1054-4887
DOI: 10.13052/2022.aces.j.371003
Popis: A dual-band bandpass plasmonic filter based on quarter-wavelength effective localized surface plasmon resonators (ELSPRs) is proposed in this work. Compared with conventional microstrip resonators, ELSPRs have a larger unloaded quality factor and compact size, which can be flexibly designed. Since the harmonics of quarter-wavelength ELSPRs are located only at odd times of their dominant mode frequency, we can not only miniaturize the filter but achieve excellent out-of-band rejection performance. For demonstration, we design and fabricate a dual-band bandpass plasmonic filter, whose size is only 0.0396λ2 0 the center frequency is 3.1 GHz and 3.6 GHz, and the relative bandwidth is 10.7% and 7.7% respectively. Measurement results show excellent agreement with the simulations. Our results provide a route for realizing ultra-compact and high-performance functional devices for the fifth generation (5G) applications
Databáze: OpenAIRE