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Terahertz Bandpass Filter Based on Frequency Selective Surface

Dec 13, 2017

Li, Jiu-Sheng, Yang Li, and Le Zhang.


We designed a terahertz bandpass filter based on double-layer frequency selective surface. Details of the proposed terahertz wave filter design and of the related parametric analysis are presented and discussed. The proposed terahertz filter was fabricated by laser technology. The transmission spectrum was characterized by terahertz time-domain spectroscopy. The results show that the center frequency of the terahertz filter is about 1 THz with 3-dB bandwidth of 400 GHz.