| Issue |
EPJ Web Conf.
Volume 374, 2026
1st International Conference on Electronic, Optical Devices and Intelligent Systems (ICEODIS 2026)
|
|
|---|---|---|
| Article Number | 01005 | |
| Number of page(s) | 5 | |
| Section | Telecommunications, RF and Optical Engineering | |
| DOI | https://doi.org/10.1051/epjconf/202637401005 | |
| Published online | 24 June 2026 | |
https://doi.org/10.1051/epjconf/202637401005
Miniaturized Wideband Circularly Polarized Spiral Antenna for Sub-1 GHz IoT Applications
Applied Science Research Laboratory, National School of Applied Sciences, Mohamed I University, Oujda, Morocco
Published online: 24 June 2026
Abstract
Antenna miniaturization is a major challenge in meeting the increasing demands of compact devices, particularly in the Internet of Things (IoT) and low-power wireless telecommunications sectors. In this context, this study presents the design of a miniaturized, wideband, circularly polarized spiral antenna optimized for operation in the sub-1 GHz frequency range. The antenna is conceived on a Rogers RT-5880 substrate, renowned for its excellent electromagnetic properties, and has compact dimensions of 16.5 × 12 × 0.59 mm3, corresponding to 0.024 × 0.017 × 0.00085 λ3 at 0.433 GHz. Its compact size allows for easy integration into embedded systems. Modeling and performance analysis were performed using the CST Studio Suite electromagnetic simulation software. The results obtained confirm the effectiveness of the proposed design for low-power IoT, mobile and wireless applications.
© The Authors, published by EDP Sciences, 2026
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