Ultra-wideband (UWB) technologies represent a significant advancement in modern communications systems, as they enable the transmission of higher data rates with high accuracy, low interference and reduced energy consumption. This has great relevance in various applications, such as medicine, radioastronomy and the military sector. These systems require low-loss radiofrequency filters capable of properly defining the operational bandwidth, for which high-temperature superconductor (HTS) materials are utilized due to their exceptional performance.
Therefore, the primary objective of this project is the study, design, and comparison of several filters with different topologies using these materials, whose frequency responses meet the requirements of ultra-wideband communications. Additionally, the project aims to analyze the impact of HTS technology through the fabrication of two designs using conventional materials, chosen due to their availability and the manufacturing complexity of HTS, and their subsequent comparison with the results obtained when employing high-temperature superconductors.
For both main designs, MATLAB has been used to obtain the parameters resulting from the synthesis process. Subsequently, the Advanced Design System (ADS) software has been used to simulate the circuit models with ideal and real transmission lines, adjusting to the limitations of the available technology. Electromagnetic simulations have been performed using Ansys HFSS, and MATLAB scripts have been developed to automate and accelerate this process. Finally, the prototypes have been fabricated and measured with a Vector Network Analyzer (VNA).
All these, together with the necessary theoretical foundations, are detailed across the different chapters of this document, which also include a study on efficiency and results accuracy, as well as an analysis of the social, economic, ethical and environmental impact of the project.
Ultra-wideband (UWB) technologies represent a significant advancement in modern communications systems, as they enable the transmission of higher data rates with high accuracy, low interference and reduced energy consumption. This has great relevance in various applications, such as medicine, radioastronomy and the military sector. These systems require low-loss radiofrequency filters capable of properly defining the operational bandwidth, for which high-temperature superconductor (HTS) materials are utilized due to their exceptional performance.
Therefore, the primary objective of this project is the study, design, and comparison of several filters with different topologies using these materials, whose frequency responses meet the requirements of ultra-wideband communications. Additionally, the project aims to analyze the impact of HTS technology through the fabrication of two designs using conventional materials, chosen due to their availability and the manufacturing complexity of HTS, and their subsequent comparison with the results obtained when employing high-temperature superconductors.
For both main designs, MATLAB has been used to obtain the parameters resulting from the synthesis process. Subsequently, the Advanced Design System (ADS) software has been used to simulate the circuit models with ideal and real transmission lines, adjusting to the limitations of the available technology. Electromagnetic simulations have been performed using Ansys HFSS, and MATLAB scripts have been developed to automate and accelerate this process. Finally, the prototypes have been fabricated and measured with a Vector Network Analyzer (VNA).
All these, together with the necessary theoretical foundations, are detailed across the different chapters of this document, which also include a study on efficiency and results accuracy, as well as an analysis of the social, economic, ethical and environmental impact of the project. Read More
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