Electromagnetics Blog Posts

Using the New Ray Tracing Algorithm in COMSOL Multiphysics® 5.2a
The ability to trace rays in unmeshed domains, and even release and trace rays outside a geometry, has been available in the Ray Optics Module as of COMSOL Multiphysics® version 5.2a. Learn more.

AltaSim Uses Simulation to Improve Bolometer Sensitivity
Bolometers can be used to detect and measure the power of incident electromagnetic radiation. To efficiently design bolometers with increased sensitivity, AltaSim Technologies used simulation.

Part 2: Model a Linear Electromagnetic Plunger with a Blocker
Learn how to model a linear electromagnetic plunger with an actuator that includes a blocker/stopper to restrict linear motion. Part 2 of a blog series on modeling electromagnetic devices.

Part 1: How to Model a Linear Electromagnetic Plunger
Learn how to model a linear electromagnetic plunger in COMSOL Multiphysics®. Part 1 of a blog series on modeling electromagnetic devices.

Optimizing Phased Array Antenna Designs for 5G and IoT with Apps
Phased array antenna designs need to be optimized for the 5G mobile network and IoT. Simulation and apps can help streamline the development cycle of these wireless communication designs.

How to Implement the Fourier Transformation in COMSOL Multiphysics
See how to Fourier transform the electromagnetic field amplitude at the lens entrance in COMSOL Multiphysics® with a Fraunhofer diffraction example.

Comparing Two Interfaces for High-Frequency Modeling
When it comes to high-frequency electromagnetics modeling, which interface is better? We compare the Electromagnetic Waves, Frequency Domain and Electromagnetic Waves, Beam Envelopes interfaces.

ETREMA Analyzes Magnetostrictive Materials with Simulation
Researchers from ETREMA Products, Inc. performed single-physics and multiphysics simulation studies of magnetostrictive materials in COMSOL Multiphysics®. Get the full story here.