Modes analyses of cylindrical waveguides using the MFCM

Abstract An efficient modes analyses technique for isotropic or anisotropic material filled 2D metallic waveguides with an arbitrary contour using the multifilament current method (MFCM) is presented. The ideal PEC boundary of a 2D waveguide is replaced by a shell with a high conductivity and electr...

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Autores principales:	Kai Wang, Feng‐Qi Yu, Teng Liang, Qingfeng Zhang, Qinyu Zhang, Jean‐Jacques Laurin, Ke Wu
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/2a9c000fc9d54790b7f17e6630c5e281
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spelling	oai:doaj.org-article:2a9c000fc9d54790b7f17e6630c5e2812021-12-03T08:34:31ZModes analyses of cylindrical waveguides using the MFCM1350-911X0013-519410.1049/ell2.12323https://doaj.org/article/2a9c000fc9d54790b7f17e6630c5e2812021-12-01T00:00:00Zhttps://doi.org/10.1049/ell2.12323https://doaj.org/toc/0013-5194https://doaj.org/toc/1350-911XAbstract An efficient modes analyses technique for isotropic or anisotropic material filled 2D metallic waveguides with an arbitrary contour using the multifilament current method (MFCM) is presented. The ideal PEC boundary of a 2D waveguide is replaced by a shell with a high conductivity and electrical small thickness. The thin lossy shell not only can well approximate the boundary condition of PEC waveguide wall therefore without altering the initial waveguide modes, but also can let the external excitation penetrate through to excite the inside modes, resulting in a high internal field intensity at the frequency of each mode. In this case, the modes are revealed by the peaks of field intensity responses, and the spurious modes which existed in traditional source‐free modes determination techniques can be completely avoided. Based on this idea, a generalized impedance boundary condition (GIBC) is formulated to represent the lossy waveguide wall and further utilized in the MFCM for simulating the internal field intensity over frequency. Three different configurations of a 2D waveguide are considered. The computed modes are compared with that obtained from commercial software, and an excellent agreement is achieved, yet an competitive advantage on simulation performances is observed by using the proposed technique.Kai WangFeng‐Qi YuTeng LiangQingfeng ZhangQinyu ZhangJean‐Jacques LaurinKe WuWileyarticleElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENElectronics Letters, Vol 57, Iss 25, Pp 980-982 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Electrical engineering. Electronics. Nuclear engineering TK1-9971 Kai Wang Feng‐Qi Yu Teng Liang Qingfeng Zhang Qinyu Zhang Jean‐Jacques Laurin Ke Wu Modes analyses of cylindrical waveguides using the MFCM
description	Abstract An efficient modes analyses technique for isotropic or anisotropic material filled 2D metallic waveguides with an arbitrary contour using the multifilament current method (MFCM) is presented. The ideal PEC boundary of a 2D waveguide is replaced by a shell with a high conductivity and electrical small thickness. The thin lossy shell not only can well approximate the boundary condition of PEC waveguide wall therefore without altering the initial waveguide modes, but also can let the external excitation penetrate through to excite the inside modes, resulting in a high internal field intensity at the frequency of each mode. In this case, the modes are revealed by the peaks of field intensity responses, and the spurious modes which existed in traditional source‐free modes determination techniques can be completely avoided. Based on this idea, a generalized impedance boundary condition (GIBC) is formulated to represent the lossy waveguide wall and further utilized in the MFCM for simulating the internal field intensity over frequency. Three different configurations of a 2D waveguide are considered. The computed modes are compared with that obtained from commercial software, and an excellent agreement is achieved, yet an competitive advantage on simulation performances is observed by using the proposed technique.
format	article
author	Kai Wang Feng‐Qi Yu Teng Liang Qingfeng Zhang Qinyu Zhang Jean‐Jacques Laurin Ke Wu
author_facet	Kai Wang Feng‐Qi Yu Teng Liang Qingfeng Zhang Qinyu Zhang Jean‐Jacques Laurin Ke Wu
author_sort	Kai Wang
title	Modes analyses of cylindrical waveguides using the MFCM
title_short	Modes analyses of cylindrical waveguides using the MFCM
title_full	Modes analyses of cylindrical waveguides using the MFCM
title_fullStr	Modes analyses of cylindrical waveguides using the MFCM
title_full_unstemmed	Modes analyses of cylindrical waveguides using the MFCM
title_sort	modes analyses of cylindrical waveguides using the mfcm
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/2a9c000fc9d54790b7f17e6630c5e281
work_keys_str_mv	AT kaiwang modesanalysesofcylindricalwaveguidesusingthemfcm AT fengqiyu modesanalysesofcylindricalwaveguidesusingthemfcm AT tengliang modesanalysesofcylindricalwaveguidesusingthemfcm AT qingfengzhang modesanalysesofcylindricalwaveguidesusingthemfcm AT qinyuzhang modesanalysesofcylindricalwaveguidesusingthemfcm AT jeanjacqueslaurin modesanalysesofcylindricalwaveguidesusingthemfcm AT kewu modesanalysesofcylindricalwaveguidesusingthemfcm
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Modes analyses of cylindrical waveguides using the MFCM

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