https://github.com/mikeingold/jefimenkomodels.jl

Time-domain solver for the electromagnetic fields produced by arbitrary (electric and magnetic) charges and currents.
https://github.com/mikeingold/jefimenkomodels.jl

electromagnetics julia simulation

Last synced: 3 months ago
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Time-domain solver for the electromagnetic fields produced by arbitrary (electric and magnetic) charges and currents.

• Host: GitHub
• URL: https://github.com/mikeingold/jefimenkomodels.jl
• Owner: mikeingold
• License: mit
• Created: 2023-03-11T14:55:37.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2025-01-06T18:04:35.000Z (10 months ago)
• Last Synced: 2025-02-20T19:46:06.593Z (9 months ago)
• Topics: electromagnetics, julia, simulation
• Language: Julia
• Homepage: https://mikeingold.github.io/JefimenkoModels.jl/
• Size: 449 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Citation: CITATION.bib

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README

          
# JefimenkoModels.jl

[![](https://img.shields.io/badge/docs-latest-blue.svg)](https://mikeingold.github.io/JefimenkoModels.jl/dev/)

`JefimenkoModels.jl` is a time-domain solver for the electromagnetic near-fields produced by

an arbitrary distribution of charges and currents, both electric and magnetic. This solver

implements a generalized version of the Jefimenko equations that enables the consideration of

magnetic charges and currents, which are often a useful analytical tool in electromagnetics

modeling. The solution process operates purely in the time-domain, enabling the study of

wideband sources without artifacts caused by frequency-domain analysis and with reduced

memory usage compared to FDTD methods.

This package leverages the

[UnitfulCoordinateSystems.jl](https://github.com/mikeingold/UnitfulCoordinateSystems.jl)

package to provide a handy and performant way to deal with `Unitful` coordinate data.

## Status

This package remains in development status. Multiple dispatch is used to select the solver

method appropriate for a particular source type. The implementation status of these methods

is detailed in the following table.

| Solver Method | Implemented | Tested |

|:---|:---:|:---:|

| `LineSource_Straight`       | :white_check_mark: | :white_check_mark: |

| `SurfaceSource_Disk`        | :white_check_mark: | :white_check_mark: |

| `SurfaceSource_Rectangle`   | :white_check_mark: | :white_check_mark: |

| `VolumeSource_Rectangular`  | :white_check_mark: | :white_check_mark: |

| `VolumeSource_Cylinder`     |         :x:        |         :x:        |

| `VolumeSource_Sphere`       |         :x:        |         :x:        |

The `LineSource_Straight` solver methods have been validated against a major commercial

software package's Method of Moments (MoM) solver for electric current line sources. For a

single-frequency (CW) source signal, `JefimenkoModels` produced identical results as the

competitor MoM solver. However, when the source signal was defined as a wideband transient

pulse, the `JefimenkoModels` solver was substantially faster and more accurate: the MoM

solver uses a discrete-frequency-domain transfer function that introduces artifacts/error

when solving for wideband signals.