L-Band Wide Bandwidth High Performance Diplexer, Triplexer, and Quadruplexer

ABSTRACT: The existing Diplexer, Triplexer, and Quadruplexer Designs currently employ bulky, machined cavity housings, are quite heavy, and cannot easily be reconfigured to meet changing system requirements. Cobra Design & Engineering, Inc. intends to employ a tubular coaxial resonator construction consisting of thin-walled aluminum tubes with interconnected ends. This method will allow the components to be lightweight, affordable and rugged enough to withstand the shock environment while meeting the electrical requirements of a high power multiplexer. These techniques were successfully applied to fabricate a high power UHF SATCOM Triplexer for a Navy SBIR. Cobra"s unique design configuration promises low passband loss, high power handling ability, and flexibility to adapt to changing bandwidth and stop-band rejection requirements, all while significantly reducing weight. BENEFIT: The lightweight construction of the tubular filter configuration allows for a much lighter total assembly weight than current Multiplexers. Multiplexer weight reduction allows for a lighter spaceborne payload making launch costs more economical.