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PIER PIER B PIER C PIER M PIER Letters
2010-10-22
Beam-Absent Analysis of Disc-Loaded-Coaxial Waveguide for Application in Gyro-TWT (Part-1)
By
Vishal Kesari
Progress In Electromagnetics Research, Vol. 109, 211-227, 2010
doi:10.2528/PIER10071305
Abstract
The electromagnetic field analysis of the disc-loaded-coaxial waveguide in two configurations was developed in TE-mode for its potential application in the fast-wave regime using the field matching technique at the cylindrical interface between disc-free and disc-occupied structure regions. The space harmonics were considered for the axial periodicity and the azimuthal harmonics were ignored for azimuthal symmetry of the present configurations. The dispersion and azimuthal interaction impedance characteristics obtained by present analysis were validated against those obtained by simulation software --- HFSS within 0.1% and 0.5%, respectively. In special cases, the disc-loaded-coaxial structure reverts to well known conventional structures. The effect of structure parameters on the shape of dispersion characteristics was investigated in order to obtain a wideband-coalescence between the beam- and waveguide-mode dispersion characteristics, required for the wideband device performance, without deteriorating the impedance value.
Citation
Vishal Kesari, "Beam-Absent Analysis of Disc-Loaded-Coaxial Waveguide for Application in Gyro-TWT (Part-1)," Progress In Electromagnetics Research, Vol. 109, 211-227, 2010.
doi:10.2528/PIER10071305
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