Title: Modal Analysis of All-Walls Longitudinally Corrugated Rectangular Waveguides Using Asymptotic Corrugations Boundary Conditions
Authors: Kehn, Malcolm Ng Mou
電機工程學系
Department of Electrical and Computer Engineering
Keywords: Asymptotic corrugations boundary condition (ACBC);corrugated waveguides;dispersion diagram
Issue Date: 1-Nov-2013
Abstract: The asymptotic corrugations boundary conditions (ACBCs) are used together with classical theory of vector potentials and an innovative combination of matrix systems to analyze rectangular waveguides having all four walls being longitudinally (axially) corrugated. One matrix system is composed of the ACBCs of two opposite walls, while the other comprises those of the other pair of corrugated walls. A transcendental characteristic equation is derived, from which the modal dispersion diagram can be obtained, for all three modal wave-tyoes: fast space, slow surface, and evanescent waves. From the formulation, analytical modal field functions in closed form are also acquired. Results of dispersion graphs and modal field distributions generated by this method are compared favorably with those obtained by a commercial full-wave solver.
URI: http://dx.doi.org/10.1109/TMTT.2013.2283843
http://hdl.handle.net/11536/23281
ISSN: 0018-9480
DOI: 10.1109/TMTT.2013.2283843
Journal: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
Volume: 61
Issue: 11
Begin Page: 3821
End Page: 3837
Appears in Collections:Articles


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