Comparative Study of Sub-THz FSS Filters Fabricated by Inkjet Printing, Microprecision Material Printing, and Photolithography

This paper reports a comparative study of sub-THz frequency-selective surface (FSS) filter performance in relation to its method of fabrication. Three techniques are considered: conventional inkjet printing, microprecision inkjet printing, and photolithography. The complete design process is present...

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Bibliographic Details
Published in:IEEE transactions on terahertz science and technology 2017-03, Vol.7 (2), p.184-190
Main Authors: Sushko, Oleksandr, Pigeon, Melusine, Donnan, Robert S., Kreouzis, Theo, Parini, Clive G., Dubrovka, Rostyslav
Format: Article
Language:English
Subjects:
Bandpass filters
Broadband
Comparative studies
Conductive ink
Fabrication
Frequency selective surfaces
frequency-selective surface (FSS) filters
Ink
Ink jet printers
Inkjet printing
Lithography
Modelling
Photolithography
Printers
Printing
quasi-optics
Spectrometry
Substrates
THz spectroscopy
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Summary:This paper reports a comparative study of sub-THz frequency-selective surface (FSS) filter performance in relation to its method of fabrication. Three techniques are considered: conventional inkjet printing, microprecision inkjet printing, and photolithography. The complete design process is presented highlighting steps from substrate selection through to electromagnetic modeling and finally broadband THz filter characterization. Electromagnetic modeling is performed using the CST full-wave frequency-domain solver. Experimental characterization of substrate material, ink, and final FSS designs is done both by THz time-domain spectrometry and quasi-optically at WR-10 and WR-3 waveguide bands using PNA-X vector network analyzer. The center frequencies for bandpass FSS filters are 100 and 300 GHz, which enables prospective utilization in a quasi-optical multiplier system.
ISSN:2156-342X
2156-3446
DOI:10.1109/TTHZ.2017.2662582