Design and breadboarding of a compact and tuningless triplexer for satellite applications

The component described is a novel type of triplexer for telecommunication and telemetry channels, designed and fabricated in the frame of Eutelsat W24 program. This triplexer is composed of two transmit channels and one receive channel at Ku-band. All channels have been implemented as H-plane metal-insert filters, connected to the input guide through a stepped three-furcation. This configuration, which represents an innovation in the breadboard of such a type of component, has shown an excellent degree of mechanical compactness along with a very interesting electrical performance, without the need of any post-manufacturing tuning.