A Stretchable Electromagnetic Absorber Fabricated Using Screen Printing Technology
AbstractA 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 × 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 × 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. View Full-Text
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Jeong, H.; Lim, S. A Stretchable Electromagnetic Absorber Fabricated Using Screen Printing Technology. Sensors 2017, 17, 1175.
Jeong H, Lim S. A Stretchable Electromagnetic Absorber Fabricated Using Screen Printing Technology. Sensors. 2017; 17(5):1175.Chicago/Turabian Style
Jeong, Heijun; Lim, Sungjoon. 2017. "A Stretchable Electromagnetic Absorber Fabricated Using Screen Printing Technology." Sensors 17, no. 5: 1175.
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