Document Type
Article
Publication Date
11-30-2025
Department
Department of Electrical and Computer Engineering
Abstract
In this study, we propose an optimized inkjet printing process to improve the insertion loss of inkjet-printed coplanar waveguide (CPW) transmission lines. The process involves varying the drying temperature and adjusting the number of printing steps to investigate their effects on the electrical characteristics of the printed CPW. The relationships between surface roughness, surface cavities, morphological changes, and insertion loss are studied by conducting atomic force microscopy analysis and by examining the insertion loss up to 3 GHz. The printed CPW that underwent low-temperature drying after the first printing and high-temperature drying after the second printing before sintering showed improved results in terms of insertion loss, surface microcavities, and surface morphology compared to the CPWs prepared under different drying conditions. In particular, the proposed process led to an improvement in the insertion loss from 0.167 dB to 0.082 dB at 3 GHz. These findings provide valuable insights for improving the reliability and efficiency of printed electronics used in high-frequency applications.
Publication Title
Journal of Electromagnetic Engineering and Science
Recommended Citation
Yu, J.,
Sim, S.,
Choi, J.,
Lee, S.,
&
Kim, J.
(2025).
Investigation of Insertion Loss in Inkjet-Printed Coplanar Waveguide Based on Drying Temperature.
Journal of Electromagnetic Engineering and Science,
25(6), 550-557.
http://doi.org/10.26866/jees.2025.6.r.328
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p2/2221
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Version
Publisher's PDF
Publisher's Statement
© Copyright The Korean Institute of Electromagnetic Engineering and Science. Publisher’s version of record: https://doi.org/10.26866/jees.2025.6.r.328