Title :
3D analysis of helical slow-wave structures for space TWTs: critical comparison of Ansoft HFSS and CST Microwave Studio
Author :
Aloisio, M. ; Waller, P.
Author_Institution :
Eur. Space Agency, Noordwijk, Netherlands
Abstract :
3D EM simulators allow to model any type of 3D structure without analytical approximations or experimental errors. The objective of this study is to evaluate the capabilities of two of these simulators (based on finite element and finite difference approaches) and to perform a critical comparison (in terms of CPU-time and accuracy) for a typical space helix TWT in Ku-band. Two commercially available simulators were used for this study: Ansoft-HFSS, and CST Microwave Studio.
Keywords :
Maxwell equations; computational electromagnetics; finite difference methods; mesh generation; slow wave structures; 3D EM simulators; Ansoft HFSS; CST Microwave Studio; Ku-band; Maxwell equations; eigenmode solver; finite difference approaches; finite element approaches; helical slow-wave structures; helix TWT; helix periodicity; space TWT; unstructured mesh; Analytical models; Attenuation; Boundary conditions; Copper; Finite difference methods; Finite element methods; Impedance; Measurement errors; Radio frequency; Space exploration;
Conference_Titel :
Vacuum Electronics Conference, 2004. IVEC 2004. Fifth IEEE International
Print_ISBN :
0-7803-8261-7
DOI :
10.1109/IVELEC.2004.1316357
