Dielectric characterization of Flexible Pineapple Leaf Fiber (PALF) Reinforced Polydimethylsiloxane (PDMS) composite as a potential antenna substrate for wearable antenna application. In: Innovation in action: turning ideas into reality. Universiti Teknologi MARA, Negeri Sembilan, pp. 235-239. ISBN 9786299595304 (2025)
Abstract
The rapid advancement of wearable technology has increased the demand for flexible, lightweight, and high-performance antenna substrates. This study investigates the dielectric properties of Pineapple Leaf Fiber (PALF) reinforced Polydimethylsiloxane (PDMS) composites as a potential substrate for wearable antennas. The fabrication method used was Manual Polymer Mixing Method. The composites, with fiber loadings from 10wt.% to 90wt.%, underwent alkaline treatment using Sodium Hydroxide (NaOH) to enhance fiber-matrix compatibility. Dielectric properties were analyzed using a Vector Network Analyzer (VNA) to measure dielectric constant, loss tangent, and permittivity. Results indicate that increasing fiber loading improves the dielectric constant, while alkaline treatment reduces the loss tangent, enhancing performance. The treated composites demonstrated superior mechanical stability and flexibility, crucial for wearable applications. Additionally, CST Studio-designed antenna prototypes showed improved radiation patterns, return loss, and efficiency, confirming PALF-PDMS as a suitable dielectric substrate. These findings highlight the potential of sustainable natural fibers for advanced, eco-friendly electronic applications.
| Item Type: | Book Section |
|---|---|
| Keywords: | Biofibre-reinforced composites, Pineapple Leaf Fibre (PALF), Polydimethylsiloxane (PDMS), Dielectric characterization, Fibre Loading, Alkaline treatment |
| Taxonomy: | By Niche > Food Technology > Research & Food Product Development (R&D) > Prototype development By Niche > Food Technology > Research & Food Product Development (R&D) > Research |
| Local Content Hub: | Niche > Food Technology |
| Depositing User: | Muhammad Shafiq Amirullah |
| Date Deposited: | 12 Dec 2025 08:26 |
| Last Modified: | 12 Dec 2025 08:26 |
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