Analyzing electromagnetic structures with curved boundaries on Cartesian FDTD meshes

Y Hao; CJ Railton

doi:10.1109/22.654926

Analyzing electromagnetic structures with curved boundaries on Cartesian FDTD meshes

Y Hao
, CJ Railton

Communication Systems and Networks

Research output: Contribution to journal › Article (Academic Journal) › peer-review

75 Citations (Scopus)

538 Downloads (Pure)

Abstract

In this paper, a new finite-difference time-domain (FDTD) algorithm is investigated to analyze electromagnetic structures with curved boundaries using a Cartesian coordinate system. The new algorithm is based on a nonorthogonal FDTD method. However, only those cells near the curved boundaries are calculated by nonorthogonal FDTD formulas; most of the grid is orthogonal and can be determined by traditional FDTD formulas. Therefore, this new algorithm is more efficient than general nonorthogonal FDTD schemes in terms of computer resources such as memory and central processing unit (CPU) time. Simulation results are presented and compared to those using other methods

Translated title of the contribution	Analysing electromagnetic structures with curved boundaries on Cartesian FDTD meshes
Original language	English
Article number	1
Pages (from-to)	82 - 88
Number of pages	7
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	46
Issue number	1
DOIs	https://doi.org/10.1109/22.654926
Publication status	Published - Jan 1998

Bibliographical note

Publisher: Insitute of Electrical and Electronics Engineers, Inc. (IEEE)
Rose publication type: Journal article

Sponsorship: The authors wish to thank the Committee of Vice-Chancellors and Principals in the United Kingdom for the provision of the ORS Award during the author Hao’s Ph.D. studies. They also wish to thank Prof. J. McGeehan for the provision of facilities at the Centre for Communications Research,
Bristol, U.K.

Terms of use: Copyright © 1998 IEEE. Reprinted from IEEE Transactions on Microwave Theory and Techniques. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Keywords

algorithms
FDTD methods

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10.1109/22.654926

Hao IEEE MTT jan1998Accepted author manuscript, 204 KB

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title = "Analyzing electromagnetic structures with curved boundaries on Cartesian FDTD meshes",

abstract = "In this paper, a new finite-difference time-domain (FDTD) algorithm is investigated to analyze electromagnetic structures with curved boundaries using a Cartesian coordinate system. The new algorithm is based on a nonorthogonal FDTD method. However, only those cells near the curved boundaries are calculated by nonorthogonal FDTD formulas; most of the grid is orthogonal and can be determined by traditional FDTD formulas. Therefore, this new algorithm is more efficient than general nonorthogonal FDTD schemes in terms of computer resources such as memory and central processing unit (CPU) time. Simulation results are presented and compared to those using other methods",

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author = "Y Hao and CJ Railton",

note = "Publisher: Insitute of Electrical and Electronics Engineers, Inc. (IEEE) Rose publication type: Journal article Sponsorship: The authors wish to thank the Committee of Vice-Chancellors and Principals in the United Kingdom for the provision of the ORS Award during the author Hao{\textquoteright}s Ph.D. studies. They also wish to thank Prof. J. McGeehan for the provision of facilities at the Centre for Communications Research, Bristol, U.K. Terms of use: Copyright {\textcopyright} 1998 IEEE. Reprinted from IEEE Transactions on Microwave Theory and Techniques. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. ",

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N2 - In this paper, a new finite-difference time-domain (FDTD) algorithm is investigated to analyze electromagnetic structures with curved boundaries using a Cartesian coordinate system. The new algorithm is based on a nonorthogonal FDTD method. However, only those cells near the curved boundaries are calculated by nonorthogonal FDTD formulas; most of the grid is orthogonal and can be determined by traditional FDTD formulas. Therefore, this new algorithm is more efficient than general nonorthogonal FDTD schemes in terms of computer resources such as memory and central processing unit (CPU) time. Simulation results are presented and compared to those using other methods

AB - In this paper, a new finite-difference time-domain (FDTD) algorithm is investigated to analyze electromagnetic structures with curved boundaries using a Cartesian coordinate system. The new algorithm is based on a nonorthogonal FDTD method. However, only those cells near the curved boundaries are calculated by nonorthogonal FDTD formulas; most of the grid is orthogonal and can be determined by traditional FDTD formulas. Therefore, this new algorithm is more efficient than general nonorthogonal FDTD schemes in terms of computer resources such as memory and central processing unit (CPU) time. Simulation results are presented and compared to those using other methods

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Analyzing electromagnetic structures with curved boundaries on Cartesian FDTD meshes

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