Multiband Planar Sierpinski Bow-Tie Antenna Design for IoT Applications

This paper presents a multiband planar Sierpinski bow-tie antenna designed for Internet-of-Things (IoT) applications. The antenna aims to fulfill the requirements of compactness, multiband operation, and suitability for IoT environments. Leveraging Sierpinski geometry principles, a compact single-substrate planar antenna architecture is proposed with five iterations. These elements cover essential frequency bands for IoT communication, including long-term evolution bands above 1 GHz, radio frequency identification bands centered around 4 and 8 GHz. Simulation results demonstrates satisfactory radiation characteristics, with gains of approximately 6 dBi for the 1 – 2 GHz band, 10 dBi for the 4 GHz band, 9 dBi for the 8 GHz band. The validation of the design is conducted through numerical analysis, assessing parameters such as return loss, 3D radiation patterns, and gains.