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Electromagnetics Blog Posts

Computing Transformer Equivalent Circuit Parameters

July 15, 2022

The magnetizing and leakage inductances of a transformer can be found using an open-circuit test and a short-circuit test, respectively. Learn how to simulate these tests here.

Extracting Electrical Circuits from Electromagnetics Simulations

July 14, 2022

A new method for generating electric circuits from solved physics is available in the AC/DC Module as of COMSOL® version 6.0. Get an introduction to this feature here.

Mode Analysis for Electromagnetic Waveguides in COMSOL®

July 5, 2022

Get an introduction to mode analysis, which can be used to investigate mode characteristics in complex waveguide structures.

Investigating the Penrose Unilluminable Room with Ray Optics

June 23, 2022

Is the Penrose unilluminable room really unilluminable? We investigate this question using the Ray Optics and Wave Optics modules…

Modeling Graphene in High-Frequency Electromagnetics

June 15, 2022

Graphene exhibits a variety of interesting properties, including high elasticity and mechanical strength. In this blog post, we’ll explore how to model graphene in an electromagnetic simulation.

Electromagnetic Scattering in 2D Axisymmetric Models

April 12, 2022

You can save computational time and memory by performing electromagnetic scattering in 2D axisymmetric models rather than 3D. Learn more here.

Simulating MEMS Accelerometers and Gyroscopes Used in Inertial Measurement Units

March 24, 2022

Many autonomous vehicles rely on IMUs for navigation. Here, we show how the MEMS Module can help you model the gyroscopes and accelerometers used in IMUs.

Extracting Specific Contact Resistivity with a Benchmark Model

March 16, 2022

You can now add contact resistance to metal contacts using the Semiconductor Module. In this blog post, we’ll explore a benchmark model that takes advantage of this new functionality.