A High Power Low Passive Intermodulation (PIM) UHF Duplexer for Space Application

This paper describes the development of a high power, low passive intermodulation (PIM) UHF duplexer to determine the feasibility of such a unit for space application. Tests carried out on the final prototype model demonstrate low loss, high power handling in vacuum (>200 watts) and low PIM - thus establishing it as a candidate design for the multi-purpose UHF satellite currently under consideration by the Canadian Government.