Accurate Evaluation of Field Interactions Between Cable Harness and Vehicle Body by a Multiple Scattering Method

Liu, Dazhao; Wang, Yansheng; Kautz, Richard; Altunyurt, Nevin; Chandra, Sandeep; Fan, Jun

doi:10.1109/temc.2016.2611006

Cited by 16 publications

(8 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Here, k is the free-space wavenumber, m(r) is the refraction index of the scatterers, and ∂ n is the outward normal derivative. Specifically, conditions (5) and (6) enforce the continuity of the tangential components of the electrical and magnetic fields at the boundary of the scatterers, ∂Ω, whereas 7is the classical Sommerfeld radiation condition. It is worth noting that the problem (Equations (3)-(7)) is defined in an unbounded domain.…”

Section: Scattering Problem and Helmholtz Equationmentioning

confidence: 99%

“…Specifically, facing both the emission and immunity issues related to unwanted scattering has become a major challenge for high-frequency systems in vehicles, aircraft, ships, and buildings. This problem poses many challenges both in experimental characterization (e.g., [2,3]) and in numerical modeling, usually based on full-wave or hybrid models (e.g., [4][5][6][7][8]).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Efficient Near-Field Analysis of the Electromagnetic Scattering Based on the Dirichlet-to-Neumann Map

et al. 2019

View full text Add to dashboard Cite

This paper proposes an efficient technique to solve the electromagnetic scattering problem, in the near zone of scatterers illuminated by external fields. The technique is based on a differential formulation of the Helmholtz equation discretized in terms of a finite element method (FEM). In order to numerically solve the problem, it is necessary to truncate the unbounded solution domain to obtain a bounded computational domain. This is usually done by defining fictitious boundaries where absorbing conditions are imposed, for example by applying the perfect matching layer (PML) approach. In this paper, these boundary conditions are expressed in an analytical form by using the Dirichlet-to-Neumann (DtN) operator. Compared to classical solutions such as PML, the proposed approach based on the DtN: (i) avoids the errors related to approximated boundary conditions; (ii) allows placing the boundary in close proximity to the scatterers, thus, reducing the solution domain to be meshed and the related computational cost; (iii) allows dealing with objects of arbitrary shapes and materials, since the shape of the boundary independent from those of the scatterers. Case-studies on problems related to the scattering from cable bundles demonstrate the accuracy and the computational advantage of the proposed technique, compared to existing ones.

show abstract

Section: Scattering Problem and Helmholtz Equationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficient Near-Field Analysis of the Electromagnetic Scattering Based on the Dirichlet-to-Neumann Map

et al. 2019

View full text Add to dashboard Cite

show abstract

“…This paper intensively focuses on solving the shielded cables crosstalk problem with complex boundary condition. A new hybrid analytical method is presented in this paper, which combines MTL method [1] with one common formulation of MoM, the mixed-potential integral equations (MPIE) formulation [14]- [17]. The interactions between the cables and nearby metal surface is solved by using Green's function, which could reduce the calculated amount and make the calculation of distribution parameters easier.…”

Section: Introductionmentioning

confidence: 99%

Coupling Analysis for Shielded Cables in the Train Using Hybrid Method

et al. 2019

View full text Add to dashboard Cite

Due to the limited space on the train, the shielded cables were utilized to protect signal cables against influence by the disturbance from power cables which arranged in parallel with the signal cables. To reduce cable coupling, the cables are usually arranged close to train body. The influence of the body of the train should not be ignored. To analyze the coupling of shielded cables in the train, a hybrid method is proposed based on the circuit model. To solve the influence from the reflection of the train body, Green's function deduced from image theory is utilized. The current on the shielding layer is calculated by lumped circuit model, which is set up by admittance parameter matrix. And then, the coupling voltage on the core of shielded cable is given by using BTL function. Finally, a laboratory test case and a field test were investigated. Results of the proposed method were validated by measurement results.

show abstract

“…Wire‐to‐surface junctions commonly occur in wireless communications, wire harness modeling, microstrip circuits and antennas, geophysical prospecting, remote sensing and radar, etc. Usually, these wire‐to‐surface junctions reside in free space or layered isotropic media.…”

Section: Introductionmentioning

confidence: 99%

A fast MoM solver for wire‐to‐surface junctions in layered uniaxial media

Zeng

Wilton

Chen

2019

Int J Numerical Modelling

View full text Add to dashboard Cite

Wire-to-surface structures in layered uniaxial media are of great importance in practical applications. This paper presents the essential procedures to build a fast method of moments (MoM) solver for modeling wire-to-surface structures in layered uniaxial media. These procedures include the modeling of junctions, accelerated evaluation, and efficient interpolation of the layered media Green's function (LMGF), and thin-wire modeling in layered uniaxial media. Three numerical examples are presented to demonstrate the accuracy and efficiency of our approach.

show abstract

Accurate Evaluation of Field Interactions Between Cable Harness and Vehicle Body by a Multiple Scattering Method

Cited by 16 publications

References 26 publications

Efficient Near-Field Analysis of the Electromagnetic Scattering Based on the Dirichlet-to-Neumann Map

Efficient Near-Field Analysis of the Electromagnetic Scattering Based on the Dirichlet-to-Neumann Map

Coupling Analysis for Shielded Cables in the Train Using Hybrid Method

A fast MoM solver for wire‐to‐surface junctions in layered uniaxial media

Contact Info

Product

Resources

About