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Updated: Aug 16, 2025

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Thermal spiral inductor using 3D printed shape memory kirigami.

Yelim Kim1, Ratanak Phon1, Heijun Jeong1

  • 1School of Electrical and Electronics Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea.

Scientific Reports
|December 23, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel thermal spiral inductor using 3D printed shape-memory polymer. This kirigami-inspired design offers a simpler, cost-effective method for fabricating radio frequency (RF) inductors.

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Area of Science:

  • Materials Science
  • Electrical Engineering
  • Mechanical Engineering

Background:

  • High inductance is crucial for radio frequency (RF) circuits.
  • Current fabrication methods for spiral inductors are complex and expensive.

Purpose of the Study:

  • To design and fabricate a novel thermal spiral inductor.
  • To explore the use of 3D printed shape-memory polymer (SMP) for inductor fabrication.
  • To offer a simpler and more cost-effective alternative to existing methods.

Main Methods:

  • Designed a thermal spiral inductor utilizing kirigami-inspired geometry.
  • Fabricated the inductor using a 3D printed shape-memory polymer (SMP).
  • Conducted mechanical and electromagnetic analyses of the designed inductor.

Main Results:

  • The proposed inductor leverages kirigami principles for shape transformation.
  • Heating and manual manipulation allow for inductance modification.
  • The fabrication process involves a single, facile step.

Conclusions:

  • A novel, thermally actuated spiral inductor was successfully fabricated.
  • The 3D printed SMP-based approach offers a simplified fabrication process.
  • This method presents a cost-effective solution for RF inductor manufacturing.