A New Reference Sample for High-Frequency Multipactor Testing

Abstract

Multipactor is a high-power effect severely limiting the performance of satellite communication links. A reference sample is normally used in the experimental setups for multipactor testing in order to verify its correct operation. However, the low gaps required for high frequencies jeopardize the manufacturability of the devices traditionally used for this purpose. A new reference sample, based on a stepped-impedance resonator, is proposed in this paper. The key design considerations are also outlined. A prototype operating between 17 and 18 GHz has been manufactured and tested, thus proving the novel structure is suitable and advantageous for high frequency bands.