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Electromagnetics Blog Posts

Modeling a THz Photoconductive Antenna with COMSOL Multiphysics®

June 13, 2024

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.

Preconditioning of Surface-Mount Devices for Reliability Testing

May 20, 2024

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.

Modeling Electric and Magnetic Fields from Power Lines

May 15, 2024

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.

Modeling the Speed and Stealth of the Darkstar

March 28, 2024

What would the shock waves around the Darkstar really look like at Mach 7.5? How stealthy is this hypersonic jet? Here, we use modeling and simulation to find out.

Learning from the Two-Capacitor Paradox: Do Capacitance and Inductance Exist?

March 11, 2024

What is the two-capacitor paradox? How can it be resolved with modeling and simulation? Do capacitance and inductance exist? Get answers here.

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!)

From TV Signals to Toasting: Tuning a Yagi–Uda Antenna to Heat Muffins

December 29, 2023

See how modeling and simulation can be used to test an unconventional heating method. Here, we explore how a Yagi–Uda antenna performs as a hypothetical oven replacement to heat muffins.

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.

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