Dielectric-loaded L-band filters for high-power space applications

• DOI: 10.1017/s1759078721000982
• Publication Date: 2021-07-05T05:04:02Z
• Authors: Paolo Vallerotonda; Fabrizio Cacciamani; Luca Pelliccia; Alessandro Cazzorla; Davide Tiradossi; Walter Steffè; Francesco Vitulli; Elio Picchione; Jaione Galdeano; Petronilo Martìn-...; Cristiano Tomassoni
• Keywords: Diplexer; Q factor; Dielectric resonator; Waveguide filter

Abstract The design and first experimental results of Tx Rx L-band bandpass filters for a high-power satellite diplexer are presented in this paper. Designed the framework an ESA ARTES AT project, based on TM 010 mode dielectric resonators. These resonators allow better terms volume occupation with respect to other still maintaining high Q-factor values (>2000). Volume saving above 30% is achieved standard coaxial filters. filter geometries materials have been chosen order improve power-handling cope related critical issues space applications (i.e. avoid any multipactor discharge operating RF power range low-PIM response). Measurements show good correlation central frequency, BW, unloaded (almost 3000). worse response shape. This ascribed size tolerances one Multiple analyses ongoing remove degradation final engineering model.