Analysis of Tf-Sf Boundary for 2d-FDTD With Plane P-Wave Propagation in Layered Dispersive and Lossy Media

Jiang, Yannan; Ge, Debiao; Ding, Shurong

doi:10.2528/pier08042201

Cited by 36 publications

(21 citation statements)

References 22 publications

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“…In connection with the propagation in the FDTD region, it must be said that the source is introduced along the connecting boundary by using a Total Field/Scattered Field (TF/SF) algorithm [18][19][20] , where the linearity of Maxwells's equations and their decomposition of the electromagnetic field are assumed: (E;H) Total = (E;H) inc +(E;H) scat . Where (E;H) inc are the values of the incident field, which are assumed to be known at all space points in the FDTD grid and also at all time steps.…”

Section: Finite-difference Time-domain Methodsmentioning

confidence: 99%

Analysis of the diffraction efficiency of reflection and transmission holographic gratings by means of a parallel FDTD approach

et al. 2011

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Editors 5-8 September 2011 Marseille, France Sponsored by SPIE Coorganised byThe papers included in this volume were part of the technical conference cited on the cover and title page. Papers were selected and subject to review by the editors and conference program committee. Some conference presentations may not be available for publication. The papers published in these proceedings reflect the work and thoughts of the authors and are published herein as submitted. The publisher is not responsible for the validity of the information or for any outcomes resulting from reliance thereon.Please use the following format to cite material from this book:Author ( Copying of material in this book for internal or personal use, or for the internal or personal use of specific clients, beyond the fair use provisions granted by the U.S. Copyright Law is authorized by SPIE subject to payment of copying fees. The Transactional Reporting Service base fee for this volume is $18.00 per article (or portion thereof), which should be paid directly to the Copyright Clearance Center (CCC), 222 Rosewood Drive, Danvers, MA 01923. Payment may also be made electronically through CCC Online at copyright.com. Other copying for republication, resale, advertising or promotion, or any form of systematic or multiple reproduction of any material in this book is prohibited except with permission in writing from the publisher. The CCC fee code is 0277-786X/11/$18.00.Printed in the United States of America.Publication of record for individual papers is online in the SPIE Digital Library. SPIEDigitalLibrary.orgPaper Numbering: Proceedings of SPIE follow an e-First publication model, with papers published first online and then in print and on CD-ROM. Papers are published as they are submitted and meet publication criteria. A unique, consistent, permanent citation identifier (CID) number is assigned to each article at the time of the first publication. Utilization of CIDs allows articles to be fully citable as soon as they are published online, and connects the same identifier to all online, print, and electronic versions of the publication. SPIE uses a six-digit CID article numbering system in which:The first four digits correspond to the SPIE volume number. The last two digits indicate publication order within the volume using a Base 36 numbering system employing both numerals and letters. These two-number sets start with 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 0A, 0B … 0Z, followed by 10-1Z, 20-2Z, etc. The CID number appears on each page of the manuscript. The complete citation is used on the first page, and an abbreviated version on subsequent pages. Numbers in the index correspond to the last two digits of the six-digit CID number. ABSTRACTIn this work a vectorized and parallel version of the Finite-Difference Time-Domain method (FDTD) is applied to Volume Holographic Gratings (VHG) and Thin-Film Filters (TFF). In particular, in this work gratings with a grating period vector forming an arbitrary angle with the perpendicular to the plane of inc...

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Section: Finite-difference Time-domain Methodsmentioning

confidence: 99%

Analysis of the diffraction efficiency of reflection and transmission holographic gratings by means of a parallel FDTD approach

et al. 2011

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“…By applying 2nd FDTD method [18,19], Equations (13) to (15) could be rewrite as per Equations (19) to (21), respectively. Note that, the observation point is at (m∆y, n∆x, p∆z), the lightning channel is along z-axis and the processing time is equal to k∆t.…”

Section: Electric and Magnetic Fields Due To Lightningmentioning

confidence: 99%

“…Hence, by applying magnetic density values into Equations (19) to (21) all components of the electric field could be calculated. Computational stability requires the condition specified in Equation (22) [15].…”

Section: Electric and Magnetic Fields Due To Lightningmentioning

confidence: 99%

An Analytical Second-FDTD Method for Evaluation of Electric and Magnetic Fields at Intermediate Distances From Lightning Channel

Izadi¹,

Kadir²,

Gomes³

et al. 2010

PIER

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Abstract-Evaluation of electric and magnetic fields due to lightning discharge is important in determination of lightning induced voltage and power system protection especially to the distribution system. In this paper, by using dipole method, Maxwell equations and second order finite-difference time domain (later referred as a 2nd FDTD method) on two realistic return stroke currents, an algorithm for evaluation of electric fields is proposed, which is based on numerical methods in the time domain. Besides proving greater accuracy, it also allows the evaluation of electric and magnetic fields away from lightning channel. In addition, the comparison between simulation results and measured fields' wave shape showed that the proposed algorithm is in good agreement for evaluation of electric and magnetic fields due to lightning channel.

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“…Winton et al derived the 1-D modified FDTD equations to simulate plane wave incident to layered media in 2D scheme (TM-wave and TE-wave) [11]. Based on [11], Jiang et al proposed a Π-shaped TF-SF boundary [12]. By carrying out different operations on each side of the TF-SF boundary, the plane wave can be injected in 3-D problems, even in layered and dispersive medium.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, the 1-D modified FDTD equations based on [11,12] are derived in a nonuniform meshing scheme. Then the processing of incident plane wave for TF-SF boundary is given.…”

Section: Introductionmentioning

confidence: 99%

Scattering Analysis of Buried Objects by Using FDTD With Nonuniform Meshes

Zhang¹,

Liao²,

Xiong³

et al. 2017

PIER M

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Abstract-This paper presents a finite-difference time-domain (FDTD) method of the infinite halfspace with nonuniform meshes, aiming to speed up the FDTD calculation of scattering of buried objects. Two 1-D modified FDTD equations are employed to set plane wave excitation of the infinite half-space scattering problems. In order to reduce calculation time and meshes, a method with nonuniform meshes is applied. Fine grids are used for the buried objects and underground while coarse grids are applied for other regions. The 1-D modified FDTD equations with nonuniform meshes are derived, and the settings of total-field/scattering-field (TF-SF) boundary are given. Finally, the proposed method is applied to calculate the transient scattering field of a buried mine. Numerical results demonstrate the validity of the method, and the simulation time is significantly reduced compared to uniform meshes FDTD.

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Analysis of Tf-Sf Boundary for 2d-FDTD With Plane P-Wave Propagation in Layered Dispersive and Lossy Media

Cited by 36 publications

References 22 publications

Analysis of the diffraction efficiency of reflection and transmission holographic gratings by means of a parallel FDTD approach

Analysis of the diffraction efficiency of reflection and transmission holographic gratings by means of a parallel FDTD approach

An Analytical Second-FDTD Method for Evaluation of Electric and Magnetic Fields at Intermediate Distances From Lightning Channel

Scattering Analysis of Buried Objects by Using FDTD With Nonuniform Meshes

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