Title :
Study of surface wave propagation in a coaxial waveguide with a periodic slot array
Author :
Alesini, D. ; Garganese, C. ; Iannazzo, F. ; Migliorati, M. ; Palumbo, L.
Author_Institution :
Lab. Nazionali di Frascati, Ist. Nazionale di Fisica Nucl., Frascati, Italy
Abstract :
In this paper we study the electromagnetic fields propagating in a coaxial waveguide with periodic slots in the inner conductor. We have performed a theoretical analysis by using the moment method, and have obtained a dispersion curve and an expression of the field components as a function of the geometrical parameters. The calculations show a slowing down of the phase velocity due to the slot array. We have then compared the predictions with the results of MAFIA simulation code and with measurements on a copper prototype
Keywords :
accelerator RF systems; accelerator cavities; coaxial waveguides; high energy physics instrumentation computing; method of moments; surface electromagnetic waves; Cu; MAFIA simulation code; coaxial waveguide; dispersion curve; electromagnetic fields propagation; geometrical parameters; inner conductor; moment method; periodic slot array; periodic slots; surface wave propagation; Coaxial components; Conductors; Electromagnetic fields; Electromagnetic propagation; Electromagnetic waveguides; Moment methods; Performance analysis; Phased arrays; Predictive models; Surface waves;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988020
