A Stretchable Electromagnetic Absorber Fabricated Using Screen Printing Technologyopen access
- Authors
- Jeong, Heijun; Lim, Sungjoon
- Issue Date
- May-2017
- Publisher
- MDPI AG
- Keywords
- electromagnetic; absorber; screen printing; stretchable
- Citation
- SENSORS, v.17, no.5
- Journal Title
- SENSORS
- Volume
- 17
- Number
- 5
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/4546
- DOI
- 10.3390/s17051175
- ISSN
- 1424-8220
1424-3210
- Abstract
- A stretchable electromagnetic absorber fabricated using screen printing technology is proposed in this paper. We used a polydimethylsiloxane (PDMS) substrate to fabricate the stretchable absorber since PDMS exhibits good dielectric properties, flexibility, and restoring capabilities. DuPont PE872 (DuPont, Wilmington, CT, USA), a stretchable silver conductive ink, was used for the screen printing technique. The reflection coefficient of the absorber was measured using a vector network analyzer and a waveguide. The proposed absorber was designed as a rectangular patch unit cell, wherein the top of the unit cell acted as the patch and the bottom formed the ground. The size of the patch was 8 mm x 7 mm. The prototype of the absorber consisted of two unit cells such that it fits into the WR-90 waveguide (dimensions: 22.86 mm x 10.16 mm) for experimental measurement. Before stretching the absorber, the resonant frequency was 11 GHz. When stretched along the x-direction, the resonant frequency shifted by 0.1 GHz, from 11 to 10.9 GHz, demonstrating 99% absorption. Furthermore, when stretched along the y-direction, the resonant frequency shifted by 0.6 GHz, from 11 to 10.4 GHz, demonstrating 99% absorption.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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