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All posts by Walter Frei

Understanding Higher-Order Diffraction

January 9, 2024

Explore how to use the Ewald sphere to study diffraction from planar periodic structures. (Interact directly with the model to get the full picture!)

Modeling Dispersion in an Electric Currents Model

December 20, 2023

As of COMSOL Multiphysics® version 6.2, new electrical dispersion modeling capabilities are available. This functionality is especially important for modeling insulators and living tissues.

Modeling Periodic Electric Signals and Their Thermal Effects

August 22, 2023

Electrical pulse trains can be applied to human tissue for electroporation and thermal ablation. Learn how to model such signals via a Fourier transform approach.

Understanding the Transient Electromagnetic Excitation Options

August 17, 2023

Looking to model electrical signals that vary arbitrarily in time? We suggest using the Electric Currents interface. Learn why here.

Understanding the Excitation Options for Modeling Electric Currents

May 5, 2023

Learn about the capabilities of COMSOL Multiphysics® for modeling frequency-domain electric currents in this in-depth guide.

Using Different Physics Interfaces for RF Electromagnetic Heating Models

May 4, 2023

RF heating problems can be modeled with both the RF Module and the AC/DC Module. Learn more about their capabilities here.

Combining Volumetric Conductor Models and Lumped Elements

February 27, 2023

With the AC/DC Module, it is possible to connect a full-fidelity volumetric conductor model to a lumped circuit element model. Learn how here.

Modeling the Pulsed Laser Heating of Semitransparent Materials

January 3, 2023

Laser light is often used to rapidly heat materials within the semiconductor processing industry. Here, we explore this method with heat transfer simulation.

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