Thursday, 20 February 2014

Terahertz dual-band pass filter using double-layer reformative complementary metamaterial structures

Feng Lan, Ziqiang Yang, Limei Qi, Xi Gao, and Zongjun Shi


A dual-band frequency selective surface filter in the THz range that uses double-layer modified complementary metamaterial structures is proposed in this paper. The band-pass filter, with dual bands centered at 0.315 THz and 0.48 THz, uses a single crystal quartz substrate and is simulated, fabricated and measured. To minimize the manufacturing risks of working with fragile and thin quartz substrates, efforts have been made to improve the transmission frequency response features at realizable substrate thicknesses. Experimental results from 0.1 THz to 0.6 THz measured by THz time-domain spectroscopy show excellent agreement with the simulation results.

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