標題: Efficient Analysis of Longitudinally Corrugated Rods Using Asymptotic Boundary Conditions for Investigation of Conductor Losses and Plasmonic Field Localization
作者: Chin, Chang Fu
Kehn, Malcolm Ng Mou
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Asymptotic boundary conditions;gyrotrons;longitudinal corrugated rod;modal analysis;surface wave
公開日期: 1-May-2019
摘要: This paper proposes an analytical modal method that provides quick yet accurate surface-wave solutions for tackling longitudinally corrugated conducting circular rods with dielectric-filled grooves. Using asymptotic corrugations boundary condition-the asymptotic corrugated boundary condition, this elegant albeit nonfull-wave approach offers a simple way to obtain not only the dispersion relation between the frequency and wavenumber but also the modal field distribution from the solution of the final system matrix for the amplitude coefficients. The proposed method is validated with an independent full-wave simulation software. Parametric studies for the field localization are carried, and the results of conductor losses as well as radial attenuation are also reported. The results of measurements conducted on a manufactured corrugated rod are presented at the end.
URI: http://dx.doi.org/10.1109/TAP.2019.2899581
http://hdl.handle.net/11536/151961
ISSN: 0018-926X
DOI: 10.1109/TAP.2019.2899581
期刊: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume: 67
Issue: 5
起始頁: 3185
結束頁: 3199
Appears in Collections:Articles