Enhancement of corona discharge thresholds in microstrip bandpass filters by using cover-ended resonators

This work has been supported by the University of Alicante through the fellowship grant UAFPU2018-054 and by the “Ministerio de Ciencia e Innovacion” through the sub-projects C41 and C43 of the coordinated project PID2019-103982RB. The authors would like to thank Val Space Consortium for its contribution – Laboratories funded by the European Development Fund – A way of making Europe.