In a nutshell, semba-fdtd capabilities are
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Cluster working capabilites through MPI.
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Multiple threads per processor through OpenMP.
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Closed/symmetric problems by means of PEC and PMC conditions.
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Open problems by means of PML boundary conditions (CPML formulation) or by Mur ABCs.
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Non-uniformly meshed domains by means of rectilinear (or graded) meshes.
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Bulk lossless and lossy dielectrics.
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Materials with frequency dependent relative permittivity and/or permeability, with an arbitrary number of complex-conjugate pole-residue pairs.
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Bulk anisotropic lossless and lossy dielectrics.
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Equivalent models of multilayered skin-depth materials.
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Branched multiwires.
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Multiconductor transmission lines networks embedded within 3D FDTD solvers.
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Coupling with SPICE solvers (ngspice).
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Junctions of wires of different radii.
- Junctions of multiwires.
- Wire bundles.
- Loaded with p.u.l resistance and inductance wires.
- Grounding through lumped elements.
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Plane-wave illumination with arbitrary time variation.
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Multiple planewaves illumination for reverberation chamber modeling.
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Hertzian dipole sources.
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Equivalent Huygens surfaces.
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Time, frequency and transfer function probes.
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Near-to-far field transformation.
Compilation and debugging instructions are in the development guide.
A short tutorial is available in the Veritasium example.
The main binary is semba-fdtd, which uses the .fdtd.json
input format.
It can be run with
semba-fdtd -i CASE_NAME.fdtd.jsonSee the output guide for probe artifact formats and the testing guide for native, Python, and MPI test commands.
Tests must be run from the root folder. Python tests automatically select the
first compatible preset binary, preferring Release builds, based on
SEMBA_FDTD_ENABLE_MPI and SEMBA_FDTD_ENABLE_MTLN, and then fall back to an
explicitly configured build/bin/semba-fdtd binary.
Set SEMBA_EXE to select a particular executable, for example
SEMBA_EXE=$PWD/build-rls/bin/semba-fdtd pytest test/.
For Intel compilation, the Intel runtime libraries must be accessible.
This code is licensed under the terms of the MIT License. All rights reserved by the University of Granada (Spain)
This repository has been funded by the following grants:
- Spanish Ministry of Science and Innovation (MICIN/AEI) (Grant Number: PID2022-137495OB-C31)
- European Union, HECATE project. (HE-HORIZON-JU-Clean-Aviation-2022-01)
- iSense Project. In-Situ Monitoring of Electromagnetic Interference. (HE-HORIZON-MSCA-2023-DN-01)