A Novel Spatial Absorbing Layer Using Discrete Green's Function Based on 3D SCN TLM for Waveguide Components

Byungsoo KIM; Kyesuk JUN; Ihn Seok KIM

A Novel Spatial Absorbing Layer Using Discrete Green's Function Based on 3D SCN TLM for Waveguide Components

Byungsoo KIM, Kyesuk JUN, Ihn Seok KIM

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In this paper, the absorbing property of the discrete Green's function ABC, which was based on a powerful concept of the TLM method, has been improved by relocating loss process from the time domain to the space domain. The proposed scheme simply adds a loss matrix to the connection matrix in the basic TLM algorithm to make the formulation of the ABC more efficient. Various lengths of absorbing layers discretized for a WR-90 empty waveguide have been tested in terms of reflection property. An expression for an optimum absorbing property has been also derived with respect to the length of the layer. Comparison of the layer with the discrete Green's function ABC shows that the layer in this study has improved reflection property better than approximately 3 and 6 dB, respectively, when 50Δ and 60Δ absorbing layers have been adopted for the WR-90 waveguide. Finally, the layer has been applied to a WR-75 metal insert filter as an example.

Publication: IEICE TRANSACTIONS on Electronics Vol.E86-C No.12 pp.2494-2500

Publication Date: 2003/12/01

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Type of Manuscript: PAPER

Category: Electromagnetic Theory

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Byungsoo KIM, Kyesuk JUN, Ihn Seok KIM, "A Novel Spatial Absorbing Layer Using Discrete Green's Function Based on 3D SCN TLM for Waveguide Components" in IEICE TRANSACTIONS on Electronics, vol. E86-C, no. 12, pp. 2494-2500, December 2003, doi: .
Abstract: In this paper, the absorbing property of the discrete Green's function ABC, which was based on a powerful concept of the TLM method, has been improved by relocating loss process from the time domain to the space domain. The proposed scheme simply adds a loss matrix to the connection matrix in the basic TLM algorithm to make the formulation of the ABC more efficient. Various lengths of absorbing layers discretized for a WR-90 empty waveguide have been tested in terms of reflection property. An expression for an optimum absorbing property has been also derived with respect to the length of the layer. Comparison of the layer with the discrete Green's function ABC shows that the layer in this study has improved reflection property better than approximately 3 and 6 dB, respectively, when 50Δ and 60Δ absorbing layers have been adopted for the WR-90 waveguide. Finally, the layer has been applied to a WR-75 metal insert filter as an example.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e86-c_12_2494/_p

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@ARTICLE{e86-c_12_2494,
author={Byungsoo KIM, Kyesuk JUN, Ihn Seok KIM, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Novel Spatial Absorbing Layer Using Discrete Green's Function Based on 3D SCN TLM for Waveguide Components},
year={2003},
volume={E86-C},
number={12},
pages={2494-2500},
abstract={In this paper, the absorbing property of the discrete Green's function ABC, which was based on a powerful concept of the TLM method, has been improved by relocating loss process from the time domain to the space domain. The proposed scheme simply adds a loss matrix to the connection matrix in the basic TLM algorithm to make the formulation of the ABC more efficient. Various lengths of absorbing layers discretized for a WR-90 empty waveguide have been tested in terms of reflection property. An expression for an optimum absorbing property has been also derived with respect to the length of the layer. Comparison of the layer with the discrete Green's function ABC shows that the layer in this study has improved reflection property better than approximately 3 and 6 dB, respectively, when 50Δ and 60Δ absorbing layers have been adopted for the WR-90 waveguide. Finally, the layer has been applied to a WR-75 metal insert filter as an example.},
keywords={},
doi={},
ISSN={},
month={December},}

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TY - JOUR
TI - A Novel Spatial Absorbing Layer Using Discrete Green's Function Based on 3D SCN TLM for Waveguide Components
T2 - IEICE TRANSACTIONS on Electronics
SP - 2494
EP - 2500
AU - Byungsoo KIM
AU - Kyesuk JUN
AU - Ihn Seok KIM
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E86-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 2003
AB - In this paper, the absorbing property of the discrete Green's function ABC, which was based on a powerful concept of the TLM method, has been improved by relocating loss process from the time domain to the space domain. The proposed scheme simply adds a loss matrix to the connection matrix in the basic TLM algorithm to make the formulation of the ABC more efficient. Various lengths of absorbing layers discretized for a WR-90 empty waveguide have been tested in terms of reflection property. An expression for an optimum absorbing property has been also derived with respect to the length of the layer. Comparison of the layer with the discrete Green's function ABC shows that the layer in this study has improved reflection property better than approximately 3 and 6 dB, respectively, when 50Δ and 60Δ absorbing layers have been adopted for the WR-90 waveguide. Finally, the layer has been applied to a WR-75 metal insert filter as an example.
ER -