Title :
Numerical computation of dispersion curves for symmetric and asymmetric modes in an arbitrary cylindrical metal SWS
Author :
Wang, Haoying ; Yang, Ziqiang ; Zhao, Linxin ; Liang, Zheng
Author_Institution :
Nat. Key Lab. of High-Power Radiat., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A method of quickly and accurately getting the dispersion curves for both symmetric and asymmetric modes in arbitrary slow-wave structures is investigated analytically. A universal dispersion equation is derived by utilizing the field theory and expressing the slow-wave structure´s profile in a finite Fourier series. In principle, this method can be applied to arbitrary axisymmetric profiles. As examples, numerical results for three typical slow-wave structures (namely, rippled-wall, disk-loaded, and modified disk-loaded structures) are presented.
Keywords :
Fourier series; dispersion relations; slow wave structures; asymmetric modes; cylindrical metal slow-wave structures; disk-loaded structure; dispersion curves; field theory; finite Fourier series; ripped-wall structure; Dispersion; Electromagnetic waveguides; Equations; Fourier series; Frequency; High power microwave generation; Microwave devices; Microwave generation; Optical coupling; Periodic structures;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2004.841206
