NDLI: The mixed spectral element method: a novel approach to remove zero spurious modes in electromagnetics

Content Provider	IEEE Xplore Digital Library
Author	Na Liu Wei Jiang Yueqin Huang Qing Huo Liu
Copyright Year	2015
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA (Qing Huo Liu) \|\| Inst. of Electromagn. & Acoust., Xiamen Univ., Xiamen, China (Na Liu; Wei Jiang; Yueqin Huang)
Abstract	In this paper, we propose a novel mixed spectral element method (mixed SEM) to remove such zero spurious modes and significantly improve the numerical solutions of the Maxwell eigenvalue problem. We will demonstrate this mixed SEM with the applications in waveguides and cavities. In order to suppress the zero spurious modes, the divergence-free condition (i.e., Gauss' law) must be enforced in the spectral element. The novel high-order mixed SEM is proposed for the analysis of anisotropic, lossy, and open waveguides and cavities. It utilizes the edge-based curl-conforming Gauss-Lobatto-Legendre (GLL) polynomials to approximate the tangential vector of the electric field; and for waveguide problems, it uses the nodal-based scalar GLL basis functions to discretize its longitudinal component to obtain the highly accurate simulations.
Starting Page	1
Ending Page	2
File Size	1012105
Page Count	2
File Format	PDF
ISBN	9781467392792
e-ISBN	9781467371971
DOI	10.1109/CEM.2015.7237438
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-01
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Numerical analysis Electromagnetic waveguides Nonhomogeneous media Eigenvalues and eigenfunctions Cavity resonators Polynomials Electromagnetics
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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