Design of devices for integrated systems based on optical and microwave technologies for 5G

In this PhD thesis, innovative microwave and optical devices for Fiber-Wireless (FiWi) networks in 5G and Internet of Things (IoT) scenarios have been designed, optimized and characterized. They find different applications in communications, industrial, medical, and environmental monitoring applications, with the aim to provide wide bandwidth and low latency. In particular, the thesis reports: i) the design and optimization of a multilayer air-filled SIW array antenna, operating at f=60 GHz, which will be constructed and characterized at the Institut d’Electronique et des Technologies du numéRique (IETR) in Rennes (France); ii) the design, fabrication and characterization of microwave applicators for industrial monitoring and thermal ablation of cancer; iii) the design and optimization of continuous wave (CW) and pulsed laser emitting at λ_s=3.92 μm in the mid-infrared (Mid-IR) wavelength range, as optical sources in FiWi hybrid networks. Part of the obtained results have been published in the Proceedings of National and International Conferences or on International Journals, as listed at the end of the thesis.