The Determination of the Effective Radius of a Filamentary Source in the FDTD Mesh

G. Waldschmidt; A. Taflove

doi:10.1109/75.852420

The Determination of the Effective Radius of a Filamentary Source in the FDTD Mesh

G. Waldschmidt, A. Taflove

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

This paper proposes a rigorous method for determining the effective radius, r_eff, of a single axial field component, E_z or H_z, in a two-dimensional (2-D) TM_z or TE_z FDTD grid, respectively. The method is based upon matching FDTD results for a filamentary field source with the analytical Green's function in two dimensions. We find that r_eff ≈ 0.2 grid cells over a wide range of grid resolutions. Further, our findings vividly demonstrate the nondissipative nature of the Yee algorithm even for very coarse grid resolutions.

Original language	English (US)
Pages (from-to)	217-219
Number of pages	3
Journal	IEEE Microwave and Guided Wave Letters
Volume	10
Issue number	6
DOIs	https://doi.org/10.1109/75.852420
State	Published - Jun 2000

Keywords

Effective radius
FDTD
filamentary source

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

Access to Document

10.1109/75.852420

Cite this

@article{195943ef3e3249c8830ce28cdc0d1d59,

title = "The Determination of the Effective Radius of a Filamentary Source in the FDTD Mesh",

abstract = "This paper proposes a rigorous method for determining the effective radius, reff, of a single axial field component, Ez or Hz, in a two-dimensional (2-D) TMz or TEz FDTD grid, respectively. The method is based upon matching FDTD results for a filamentary field source with the analytical Green's function in two dimensions. We find that reff ≈ 0.2 grid cells over a wide range of grid resolutions. Further, our findings vividly demonstrate the nondissipative nature of the Yee algorithm even for very coarse grid resolutions.",

keywords = "Effective radius, FDTD, filamentary source",

author = "G. Waldschmidt and A. Taflove",

year = "2000",

month = jun,

doi = "10.1109/75.852420",

language = "English (US)",

volume = "10",

pages = "217--219",

journal = "IEEE Microwave and Guided Wave Letters",

issn = "1051-8207",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "6",

}

TY - JOUR

T1 - The Determination of the Effective Radius of a Filamentary Source in the FDTD Mesh

AU - Waldschmidt, G.

AU - Taflove, A.

PY - 2000/6

Y1 - 2000/6

N2 - This paper proposes a rigorous method for determining the effective radius, reff, of a single axial field component, Ez or Hz, in a two-dimensional (2-D) TMz or TEz FDTD grid, respectively. The method is based upon matching FDTD results for a filamentary field source with the analytical Green's function in two dimensions. We find that reff ≈ 0.2 grid cells over a wide range of grid resolutions. Further, our findings vividly demonstrate the nondissipative nature of the Yee algorithm even for very coarse grid resolutions.

AB - This paper proposes a rigorous method for determining the effective radius, reff, of a single axial field component, Ez or Hz, in a two-dimensional (2-D) TMz or TEz FDTD grid, respectively. The method is based upon matching FDTD results for a filamentary field source with the analytical Green's function in two dimensions. We find that reff ≈ 0.2 grid cells over a wide range of grid resolutions. Further, our findings vividly demonstrate the nondissipative nature of the Yee algorithm even for very coarse grid resolutions.

KW - Effective radius

KW - FDTD

KW - filamentary source

UR - http://www.scopus.com/inward/record.url?scp=0034205666&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034205666&partnerID=8YFLogxK

U2 - 10.1109/75.852420

DO - 10.1109/75.852420

M3 - Article

AN - SCOPUS:0034205666

SN - 1051-8207

VL - 10

SP - 217

EP - 219

JO - IEEE Microwave and Guided Wave Letters

JF - IEEE Microwave and Guided Wave Letters

IS - 6

ER -

The Determination of the Effective Radius of a Filamentary Source in the FDTD Mesh

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this