Ultrabroad Terahertz Bandpass Filter Based on a Multiple-Layered Metamaterial with Flexible Substrates

An ultrabroad and sharp transition bandpass flexible terahertz (THz) filter is designed using a multiple-layered metamaterial. This bandpass filter has excellent filtering capability, with a 3 dB bandwidth of about 0.47 THz and sharp band-edge transitions of 80 dB/THz and 96 dB/THz, respectively, an...

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Bibliographic Details
Published inChinese physics letters Vol. 29; no. 9; pp. 94209 - 1-094209-3
Main Authors Liang, Lan-Ju, Yao, Jian-Quan, Yan, Xin
Format Journal Article
LanguageEnglish
Published 01.09.2012
Subjects
Bandpass
Bandpass filters
Filtering
Filtration
Joining
Mathematical models
Metamaterials
Noise levels
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Summary:An ultrabroad and sharp transition bandpass flexible terahertz (THz) filter is designed using a multiple-layered metamaterial. This bandpass filter has excellent filtering capability, with a 3 dB bandwidth of about 0.47 THz and sharp band-edge transitions of 80 dB/THz and 96 dB/THz, respectively, and it can be realized by a coupling individual resonance mode. We find that the geometry parameters have an influence on the transmission profile, which are capable of giving us meaningful guidance in design of high profile bandpass THz filters. The numerical results show that the multiple-layered flexible metamaterial provides an effective way to achieve ultrabroad THz devices.
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/29/9/094209