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Mesh Analysis for AC Circuits

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In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
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Related Experiment Video

Updated: Jun 25, 2026

Clinical Imaging of Microwave Mammography

Clinical Imaging of Microwave Mammography

Published on: November 14, 2025

A parallel graded-mesh FDTD algorithm for human-antenna interaction problems.

Luca Catarinucci¹, Luciano Tarricone

¹Innovation Engineering Department, University of Salento, Lecce, Italy. luca.catarinucci@unile.it

International Journal of Occupational Safety and Ergonomics : JOSE

|March 11, 2009

Summary

A new parallel graded-mesh (GM) Finite Difference Time Domain (FDTD) method efficiently simulates electromagnetic field exposure. This approach combines subgridding and parallel computing for complex occupational scenarios without performance loss.

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Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Published on: May 2, 2018

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Last Updated: Jun 25, 2026

Clinical Imaging of Microwave Mammography

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Published on: November 14, 2025

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Published on: May 2, 2018

Area of Science:

Computational electromagnetics
Numerical methods for electromagnetic field simulation

Background:

The Finite Difference Time Domain (FDTD) method is crucial for solving electromagnetic (EM) problems, including human exposure assessments.
High computational demands (memory, CPU) arise from large simulation domains and fine spatial resolutions in occupational EM exposure studies.
Parallel computing and subgridding techniques are common strategies to manage computational load.

Purpose of the Study:

To introduce a novel, easy-to-implement, and efficient parallel graded-mesh (GM) FDTD scheme.
To evaluate the proposed scheme's performance in human-antenna interaction problems relevant to occupational exposure.
To demonstrate the simultaneous application of subgridding and parallel algorithms in FDTD.

Main Methods:

Development of a parallel graded-mesh (GM) FDTD algorithm.
Application of the GM-FDTD scheme to simulate human exposure to EM fields in occupational settings.
Integration of subgridding techniques with parallel computing within the FDTD framework.

Main Results:

The proposed parallel GM-FDTD scheme is effective for complex occupational EM exposure simulations.
The method successfully integrates subgridding advantages with parallel FDTD performance.
Demonstrated appropriateness for human-antenna interaction problems.

Conclusions:

The parallel GM-FDTD scheme offers an efficient solution for computationally intensive EM simulations.
This approach enhances the capability to model complex occupational EM exposure scenarios.
The technique preserves the benefits of subgridding without compromising parallel FDTD efficiency.