Coaxial Multipactor Susceptibility at GHz Frequencies

Uncertainty in multipactor prediction currently leads to unanticipated device failures in many medium and high-power systems. Space-based systems, such as communication satellites, are strongly impacted by this uncertainty, due to their tight engineering requirements and susceptibility to signal degradation. The high-frequency coaxial regime, in particular, is not well characterized. We report here on experimental and computational results obtained in coaxial geometry for this frequency-space.