光电子快报(英文版), 2015, 11 (1): 33, Published Online: Oct. 12, 2017   

Realization of band-pass and low-pass filters on a single chip in terahertz regime

Author Affiliations
1 School of Applied Sciences, Harbin University of Science and Technology, Harbin 150080, China
2 School of Information Engineering, Minzu University of China, Beijing 100081, China
3 Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
Abstract
In this paper, we present the design, simulation, fabrication and characterization of a terahertz (THz) filter based on metamaterial consisting of the periodical double symmetric splits ring resonator (DS-SRR) array. We can observe that the metamaterial-based filter possesses a band-pass transmission when the electrical field is along y direction, and it possesses a low-pass transmission when the electrical field is along x direction. Our results demonstrate that the proposed filter can realize the switching between band-pass effect and low-pass effect by only changing the polarization direction of the incident electromagnetic wave. Moreover, the calculated surface current distributions are also used to analyze the switchable mechanism of the THz metamatrial filter. Therefore, the proposed THz wave filter has a potential application in THz wave communication systems.

WANG Lei, GENG Zhao-xin, HE Xun-jun, CAO Ya-peng, YANG Yu-ping, CHEN Hong-da. Realization of band-pass and low-pass filters on a single chip in terahertz regime[J]. 光电子快报(英文版), 2015, 11(1): 33.

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