Estudio y diseño de antenas ranuradas cubiertas por una metasuperficie
Javier Chocarro Álvarez · 2025
In the modern world of antenna design, there is a continuous pursuit of new ways to evolve and innovate components. Technologies such as metamaterials have been groundbreaking, enabling the creation of devices that are more compact, efficient, and versatile. These advancements not only meet the growing demands of contemporary communication and radar systems but also open up new opportunities in emerging fields like high-precision detection, IoT (Internet of Things), and 5G connectivity. The future of antennas will be defined by their ability to integrate and adapt dynamically to complex environments, offering innovative solutions to both current and future technological challenges. This PhD thesis investigates the design, simulation, and optimization of slot antennas using metasurfaces, implemented in two distinct technologies: SWA and S-SIW. Through detailed simulations, prototype development, and experimental characterization, this research demonstrates the potential of metasurfaces as a key tool in the development of advanced antennas. The metasurface has been shown to increase the gain of designed antennas by 3-4 dB, narrow the beam in the E-plane, and significantly improve the performance compared to traditional antennas. Additionally, various methods for improving future antenna designs have been explored, including slot coupling to achieve more accurate and realistic slot conductance values. Overall, the use of metasurfaces in antenna design provides an eficient solution for improving performance without compromising low profile and ease of integration.