Verifying your trace S-parameters is more than just good practice—it’s essential for confident measurement, simulation, and design space exploration in modern EDA tools. Especially in high-speed digital systems where traces are long, applying a few key principles can provide valuable insights into your data and give you a head start in your design … [Read more...]
How to Not Die in an EMC Lab
There are risks in every work environment: risks to humans, risks to equipment, risks to things you might be testing, and risks to customers’ equipment. Such is the case in an EMC lab, which is typically an ever-changing environment with moving parts, equipment, people, and projects. From day to day, EMI personnel can be working on military equipment worth millions of … [Read more...]
Waveguide Insights: Understanding Rectangular and Double-Ridge Designs for Enhanced RF Systems
OVERVIEW This App-Note provides a thorough examination of rectangular and double-ridge waveguides, highlighting their design, operating principles, advantages, and applications. It details specifications and power-handling considerations essential for RF systems. Waveguides are crucial in microwave engineering, offering low-loss, high-efficiency transmission for … [Read more...]
What You Need to Know to Design Your Own Kit of Near-Field Probes
One challenge for EMC engineers is the impossibility of visualizing electromagnetic fields with our own eyes. Since we cannot directly observe them, we need tools to transform what we cannot see into what we can see. There are a lot of EMC tools to measure and troubleshoot EMC problems, but their elevated price makes them accessible to only a select group of people. The … [Read more...]
Myths and Legends of EMI in PCB Design
Many designers struggle with EMI and EMC challenges, and there are many myths surrounding EMI that do not help designers overcome EMC hurdles. Some designers may lack experience, while others may know EMI/EMC rules but apply them incorrectly. There is also an issue of delegation, where EMI/EMC is sometimes seen as not being a designer’s problem. No matter who is … [Read more...]
EMC Immunity Testing: Do You Know Your Failures?
Electromagnetic compatibility (EMC) is the desired condition for electronic devices. In an ideal world, radio-frequency emissions and transient events would not cause failures or disruptions to electronic equipment. But as much as we (and the product manufacturers) wish otherwise, we are not in an ideal world. Radiated emissions, whether intentional from transmitters or … [Read more...]
Free eBook: From a Hod to an Odd EM Wave
A Remarkable Journey Through Engineering, Humanity, and History In From a Hod to an Odd EM Wave, David A. Weston invites readers into a vivid, deeply personal memoir that weaves together a lifetime of engineering innovation, global experiences, and unforgettable human encounters. From humble beginnings carrying bricks on a construction site in post-war England to … [Read more...]
Column | How to Accidentally Start a Career in EMC
“Dean can go to the lab.” I was walking out of my first job after graduating college, likely on my way to dinner or to watch a game somewhere. The office area where the engineering group sat at Two Technologies in Horsham, PA, had a large round table where we would look at drawings, talk about design, shoot the breeze, and talk about life. A lot of decisions were made at that … [Read more...]
CubeSats Require Special ESD Handling Protocols for Launch Integrity — Part I
Figure 1: Tu-Pod in Space (Courtesy Amin Djamshidpour, Co-Founder Teton Aerospace) CubeSats are relatively inexpensive when compared to traditional vehicle-size satellites. Since their inception, CubeSat spacecraft have shown functional success rates ranging from 40% to 75% for launch and deployment phases. According to the International Journal of Aerospace Engineering, … [Read more...]
IoT Systems with mmWave Sensors
One of the most common applications of Internet of Things (IoT) devices is sensing, followed by transmission of raw data back to a base station or server for storage and further analysis. The most common of these sensing tasks seems to be environmental sensing, such as monitoring gas concentrations, temperature, humidity, etc. These devices are so ubiquitous that they … [Read more...]
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