Ceramic-loaded Barrel-shaped Ku-band filter for High-power Satellite Applications

In this paper the first experimental results of a very compact Ku-band bandpass filter for high-power applications based on dielectric-loaded combline resonators are shown in the framework of an ESA ARTES AT project. Architectures and materials have been chosen in order to improve the performance in terms of power-handling and multipactor up to 150 W continuous wave of the input RF power. Barrel-shaped metal cavities are combined with high-permittivity ceramic materials in order to minimize the volume occupation maintaining high unloaded Q-factor values (>4500). A 6
^th
order elliptic filter has been manufactured and results concerning environmental and high-power tests are presented here.