Per page:
Search

RF & Microwave Engineering Blog Posts

Powering Particle Physics Research at Fermilab

June 19, 2014

Researchers at Fermilab had an important question: Would upgrading the booster RF cavities in their particle accelerator cause them to overheat? To find answers, they turned to simulation…

Quick Intro to Modeling RF and Microwave Heating

May 20, 2014

If you’ve attended a COMSOL webinar about an RF topic, you’ve probably seen our model of a waveguide with a bend. That’s because it illustrates microwave heating in an easy-to-understand way.

Intro Model: Studying the Signal Strength of RF Coils

May 9, 2014

Electronics designers need to ensure that RF coils contained within their devices can properly transmit information from a source to its destination. Electromagnetics simulation can help.

Computing the Impedance of a Corrugated Waveguide

March 25, 2014

Did you know that you can compute the effective impedance for waveguides with nonuniform cross sections (such as corrugated waveguides) in COMSOL Multiphysics®? We demonstrate how here >>

Modeling a Branch Line Coupler

March 14, 2014

A branch line coupler is made up of 2 sets of coupled ports with a phase difference of 90° between them. Power enters through 1 input port and is then divided equally between 2 output ports.

Benchmark Model Results Agree with Fresnel Equations

March 12, 2014

Bright idea: When a ray of light (an electromagnetic wave) propagating through free space hits a dielectric medium, part of the light will be transmitted and part will be reflected.

Modeling Electromagnetic Waves and Periodic Structures

January 17, 2014

Oftentimes, it is of interest to model an EM wave (light, microwaves) incident upon periodic structures, such as diffraction gratings, metamaterials, and frequency selective surfaces.

The Linac-MR Project: Tumor Tracking and Treatment

December 30, 2013

Not too long ago, my colleague Jennifer wrote a blog post about the Cross Cancer Institute, and the research being conducted there into the design of a new device for treating cancerous tumors. The device, known as the Linac-MR, is revolutionary due to its ability to both image and treat cancer cells simultaneously — a capability that had previously been regarded as near impossible due to the conflicting physics interactions involved. Such a device would allow for extremely precise radiation […]


EXPLORE COMSOL BLOG