Development of new tunable passive microwave components in waveguide technology

• Autores: Javier Ossorio García
• Directores de la Tesis: Vicente Enrique Boria Esbert (dir. tes.)
• Lectura: En la Universitat Politècnica de València ( España ) en 2021
• Idioma: español
• Tribunal Calificador de la Tesis: Giuseppe Macchiarella (presid.), César Briso Rodríguez (secret.), Cesar Miquel España (voc.)
• Programa de doctorado: Programa de Doctorado en Telecomunicación por la Universitat Politècnica de València
• Materias:
  • Ciencias tecnológicas
    • Tecnología del espacio
    • Tecnología de las telecomunicaciones
      • Comunicaciones por satélite
• Enlaces
  • Tesis en acceso abierto en: RiuNet
• Resumen

  • The main objective of this doctoral thesis is the study, development, design and manufacture of new passive microwave components in waveguide technology, such as filters and multiplexers, that operate in the high frequency bands of current and future telecommunication satellite payloads between 12 and 40 GHz (Ku, K and Ka bands). The new solutions developed must other both classic and advanced (elliptical) responses, as well as the possibility of being reconfigured both in terms of center frequency and bandwidth. The motivation for this research is to address the current and future needs of space communication systems which require higher data rate transmission (that is larger bandwidths), as well as flexibility with respect to the operating frequency to dynamic adaptation to possible changes in user demands. In this context, we propose in this thesis alternative microwave filter structures in metallic waveguide, as well as novel solutions. We explore different approaches to adjust the filter performance, using both traditional metallic tuning screws as well as tuning elements made with dierent dielectric materials. We also advance the state-of-the-art by developing more performing Space Mapping procedures for the design, optimization and tuning of the filter structures that we propose. The objective is to improve the response of the devices and reduce, at the same time, their manufacturing time and costs. As a fundamental element of our work, in addition to theoretical developments, we also apply the findings of our research to the design, manufacture and measurement of a number of more complex components, such as diplexers and integrated switches and filters. They are practical devices to demonstrate the ability of the novel filters that we propose to satisfy the requirements of current and future advanced satellite payloads.