Electromagnetics Blog Posts
![](http://cdn.comsol.com/wordpress/sites/1/2024/07/Blog_Header_Imgs_Time-Periodic_ThumbnailImg.png)
Treating Time as a Space Dimension
In this blog post, explore a particularly important approach to solving the time-periodic steady state of a system that can be described by a set of algebraic equations.
![](http://cdn.comsol.com/wordpress/sites/1/2016/07/Blog_Header_Imgs_Bandpass-Filter_ThumbnailImg.png)
Methods That Accelerate the Modeling of Bandpass-Filter-Type Devices
Designing bandpass-filter type high-Q devices with the finite element method in the frequency domain? Here are some methods you can use to speed up the modeling process.
![](http://cdn.comsol.com/wordpress/sites/1/2024/07/Blog_Header_Imgs_Coil_ThumbnailImg.png)
Using Differential Inductance and Coils in COMSOL Multiphysics®
Differential inductances are useful for building simplified lumped models. Explore 4 examples of how to extract differential inductance in COMSOL Multiphysics® here.
![](http://cdn.comsol.com/wordpress/sites/1/2024/06/Blog_Header_Imgs_FusionEnergy_ThumbnailImg.png)
Opening the Path to Commercial Fusion Energy with Simulation
CFS has showcased the potential of high-temperature superconductor magnets and high-field tokamaks for fusion machines. Explore how they are using modeling and simulation in their work.
![](http://cdn.comsol.com/wordpress/sites/1/2024/06/Blog_Header_Imgs_Metal-DielectricLayeredMetamaterial_ThumbnailImg.png)
Modeling a Hyperbolic Wave in a Layered Metal–Dielectric Metamaterial
Learn how model a metamaterial made of thin layers of periodically organized silver and silicon dioxide and calculate its permittivity tensor components.
![](http://cdn.comsol.com/wordpress/sites/1/2024/06/Blog_Header_Imgs_THzAntenna_ThumbnailImg.png)
Modeling a THz Photoconductive Antenna with COMSOL Multiphysics®
Photoconductive antennas are commonly used in terahertz engineering. Learn how these devices work and how to model one with the Semiconductor Module and RF Module.
![](http://cdn.comsol.com/wordpress/sites/1/2024/05/Blog_Header_Imgs_SurfaceMountDevices_ThumbnailImg.png)
Preconditioning of Surface-Mount Devices for Reliability Testing
Explore how modeling and simulation can be used to analyze the thermal stress and hygroscopic swelling of a surface-mount device through the 3 preconditioning stages.
![](http://cdn.comsol.com/wordpress/sites/1/2024/05/Blog_Header_Imgs_PowerLines_ThumbnailImg.png)
Modeling Electric and Magnetic Fields from Power Lines
Modeling and simulation can be used to analyze fields generated by power lines, which can lead to a further understanding of how these fields interact with the surrounding environment.