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Numerical modeling of realistic engineering problems using the FDTD technique often requires smaller cell size, higher simulation accuracy and less computation resources. In this paper, we describe a high performance three-dimensional FDTD algorithm by using non-uniform mesh that allows flexible cell size to improve the accuracy of modeling, and computation resource also can be reduced greatly. In this paper, we will first explain the detailed formulation and algorithm of Non-Uniform Mesh. Next, examination of the reflection error from fine-coarse boundary because of the discontinuity is carried out. Then some test geometry are solved by using both uniform mesh and non-uniform mesh FDTD scheme to validate the results and check the accuracy of solution. We also examine the calculation accuracy due to mesh size ratio, and then investigation of how to determine the fine mesh region surrounding the object for a most small computation error will be carried out in this paper. In addition, the algorithm is demonstrated for several different antenna geometry.

- Publication
- IEICE TRANSACTIONS on Communications Vol.E83-B No.7 pp.1544-1553

- Publication Date
- 2000/07/25

- Publicized

- Online ISSN

- DOI

- Type of Manuscript
- PAPER

- Category
- Antenna and Propagation

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Huiling JIANG, Hiroyuki ARAI, "Analysis of Computation Error in Antenna's Simulation by Using Non-Uniform Mesh FDTD" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 7, pp. 1544-1553, July 2000, doi: .

Abstract: Numerical modeling of realistic engineering problems using the FDTD technique often requires smaller cell size, higher simulation accuracy and less computation resources. In this paper, we describe a high performance three-dimensional FDTD algorithm by using non-uniform mesh that allows flexible cell size to improve the accuracy of modeling, and computation resource also can be reduced greatly. In this paper, we will first explain the detailed formulation and algorithm of Non-Uniform Mesh. Next, examination of the reflection error from fine-coarse boundary because of the discontinuity is carried out. Then some test geometry are solved by using both uniform mesh and non-uniform mesh FDTD scheme to validate the results and check the accuracy of solution. We also examine the calculation accuracy due to mesh size ratio, and then investigation of how to determine the fine mesh region surrounding the object for a most small computation error will be carried out in this paper. In addition, the algorithm is demonstrated for several different antenna geometry.

URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_7_1544/_p

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@ARTICLE{e83-b_7_1544,

author={Huiling JIANG, Hiroyuki ARAI, },

journal={IEICE TRANSACTIONS on Communications},

title={Analysis of Computation Error in Antenna's Simulation by Using Non-Uniform Mesh FDTD},

year={2000},

volume={E83-B},

number={7},

pages={1544-1553},

abstract={Numerical modeling of realistic engineering problems using the FDTD technique often requires smaller cell size, higher simulation accuracy and less computation resources. In this paper, we describe a high performance three-dimensional FDTD algorithm by using non-uniform mesh that allows flexible cell size to improve the accuracy of modeling, and computation resource also can be reduced greatly. In this paper, we will first explain the detailed formulation and algorithm of Non-Uniform Mesh. Next, examination of the reflection error from fine-coarse boundary because of the discontinuity is carried out. Then some test geometry are solved by using both uniform mesh and non-uniform mesh FDTD scheme to validate the results and check the accuracy of solution. We also examine the calculation accuracy due to mesh size ratio, and then investigation of how to determine the fine mesh region surrounding the object for a most small computation error will be carried out in this paper. In addition, the algorithm is demonstrated for several different antenna geometry.},

keywords={},

doi={},

ISSN={},

month={July},}

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TY - JOUR

TI - Analysis of Computation Error in Antenna's Simulation by Using Non-Uniform Mesh FDTD

T2 - IEICE TRANSACTIONS on Communications

SP - 1544

EP - 1553

AU - Huiling JIANG

AU - Hiroyuki ARAI

PY - 2000

DO -

JO - IEICE TRANSACTIONS on Communications

SN -

VL - E83-B

IS - 7

JA - IEICE TRANSACTIONS on Communications

Y1 - July 2000

AB - Numerical modeling of realistic engineering problems using the FDTD technique often requires smaller cell size, higher simulation accuracy and less computation resources. In this paper, we describe a high performance three-dimensional FDTD algorithm by using non-uniform mesh that allows flexible cell size to improve the accuracy of modeling, and computation resource also can be reduced greatly. In this paper, we will first explain the detailed formulation and algorithm of Non-Uniform Mesh. Next, examination of the reflection error from fine-coarse boundary because of the discontinuity is carried out. Then some test geometry are solved by using both uniform mesh and non-uniform mesh FDTD scheme to validate the results and check the accuracy of solution. We also examine the calculation accuracy due to mesh size ratio, and then investigation of how to determine the fine mesh region surrounding the object for a most small computation error will be carried out in this paper. In addition, the algorithm is demonstrated for several different antenna geometry.

ER -