A double layer FSS filter for sub-THz applications

This work presents the simulated and measured performance of single- and double-layer frequency selective surface filters for operation at sub-THz frequencies (250 GHz center frequency). They were composed of concentric square loops with a split as a unit cell resonator on top of a low dielectric pe...

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Bibliographic Details
Published in:Scientific reports 2021-10, Vol.11 (1), p.19773-19773, Article 19773
Main Authors: Ghavidel, A., Kokkonen, M., Myllymäki, S.
Format: Article
Language:English
Subjects:
639/166
639/166/987
Bandwidths
Design
Electric fields
Humanities and Social Sciences
Magnetic fields
multidisciplinary
Science
Science (multidisciplinary)
Simulation
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Summary:This work presents the simulated and measured performance of single- and double-layer frequency selective surface filters for operation at sub-THz frequencies (250 GHz center frequency). They were composed of concentric square loops with a split as a unit cell resonator on top of a low dielectric permittivity, low thickness material (RT5880). Both a single layer filter and a cascaded two layer filter with varied distances were investigated. The simulated bandwidth for the cascaded filter was 27 GHz and 16 GHz and 9 GHz bandwidth measured with a THz-TDS and microwave system.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-99256-2