Impedance calculation of helical slow-wave structure using HFCS-I and MAFIA

Using HFCS-I and MAFIA, the impedance characteristics of a typical helical slow-wave structure (SWS) is studied, in which the Non-Resonant Perturbation (NRP) Method is adopted and the direct calculation from discrete Electromagnetic (EM) fields is performed. The results from HFCS-I and MAFIA are found to be consistent.