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Screen Printed Frequency-Selective Surfaces on Rigid, Flexible and Elastic Substrates

Published online by Cambridge University Press:  26 February 2011

Thomas Kistenmacher
Affiliation:
thomas.kistenmacher@jhuapl.edu, Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, United States, (240) 228 5000, (240) 228 6904
Shaun Francomacaro
Affiliation:
shaun.francomacaro@jhuapl.edu, Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, United States
Ben Brawley
Affiliation:
benjamin.brawley@jhuapl.edu, Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, United States
Ra'id Awadallah
Affiliation:
raid.awadallah@jhuapl.edu, Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, United States
Paul Vichot
Affiliation:
paul.vichot@jhuapl.edu, Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, United States
Michael Fitch
Affiliation:
michael.fitch@jhuapl.edu, Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, United States
Jane Spicer
Affiliation:
jane.spicer@jhuapl.edu, Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, United States
Dennis Wickenden
Affiliation:
dennis.wickenden@jhuapl.edu, Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, United States
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Abstract

A series of frequency-selective surface (FSS) arrays based on nested split-ring triangle resonators have been fabricated using screen printing. A silver-filled polymer thick film (PTF) paste was selected as the active medium for the FSS arrays as it has good compatibility with the various substrates employed and is in itself naturally flexible. Substrates included FR4 boards and polyimide (PI), polyethylene terephthalate (PET) and silicone sheeting. Compared to arrays fabricated from Cu-clad FR4 board, the screen-printed arrays are resonance shifted owing to the magnitude of the dielectric constant and thickness of the various substrates. In addition, the quality factors of the screen-printed arrays are reduced compared to those fabricated from the more conductive Cu resonators. Despite these limitations, screen-printed arrays have considerable potential as components for low-cost flexible and conformal microwave devices.

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

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References

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