Thermal spiral inductor using 3D printed shape memory kirigami

Spiral inductors are required to realise high inductance in radio frequency (RF) circuits. Although their fabrication by using micro-electrical–mechanical systems, thin films, actuators, etc., has received considerable research attention, current approaches are both complex and expensive. In this st...

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Published inScientific reports Vol. 12; no. 1; p. 22246
Main Authors Kim, Yelim, Phon, Ratanak, Jeong, Heijun, Kim, Yeonju, Lim, Sungjoon
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 23.12.2022
Nature Publishing Group
Nature Portfolio
Subjects
3-D printers
639/166/987
639/301/1023
Bridges
Cooling
Design
Fabrication
Heat
Humanities and Social Sciences
Manufacturing
Microelectromechanical systems
multidisciplinary
Polymers
Science
Science (multidisciplinary)
Thin films
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Summary:Spiral inductors are required to realise high inductance in radio frequency (RF) circuits. Although their fabrication by using micro-electrical–mechanical systems, thin films, actuators, etc., has received considerable research attention, current approaches are both complex and expensive. In this study, we designed and fabricated a thermal spiral inductor by using a three-dimensional (3D) printed shape-memory polymer (SMP). The proposed inductor was inspired by kirigami geometry whereby a two-dimensional (2D) planar geometric shape could be transformed into a 3D spiral one to change the inductance by heating and manually transform. Mechanical and electromagnetic analyses of the spiral inductor design was conducted. Hence, in contrast with the current processes used to manufacture spiral inductors, ours can be realised via a single facile fabrication step.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-26923-3