EMC/EMI

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Following best design practices for controlling EMI will increase your chance of success in your next design. But, sometimes knowing what not to do is just as important.

Recently, Cadence released its Clarity 3D Transient Solver for EMI simulation.  I caught up with Brad Griffin, product management group director for multi-physics system analysis in the Custom IC & PCB Group at Cadence to follow up for some more details.

The extension of operating frequencies in the mmWave region and beyond is the story of wireless development for the next thirty years. Understanding the resulting challenges and improving the state-of-the-art is a key driver for the EMC and wireless Industries. This article takes a look at some of the fundamentals of mmWave, including signal propagation, available spectrum, and challenges and issues facing EMC.

Richardson Electronics, Ltd. strengthens its RF offering with Masach Tech™ EMI/RFI shields. These rigid, very planar parts are designed for reflow solder and have a removable lid to allow for much easier component troubleshooting and repair.

Can common via structures transfer any data rate or are they limited with a defined bandwidth? If so, what limits its bandwidth? And what can be done when the bandwidth of the signal is greater than the bandwidth of the G-S-S-G structure? This technical feature from Dror Haviv explains.

Component manufacturers continue to develop increasingly miniaturized bulkhead filter capacitors that also offer increased current capacity, voltage, and operating temperature ranges. This post looks at the details of this miniaturization in order to help aerospace systems designers satisfy stringent size and weight constraints and further improve system performance.

Today’s vehicles support a multitude of wireless standards requiring high-performance antennas, such as satellite navigation (GNSS), tire pressure monitoring systems (TPMS), keyless entry (e.g. UWB) and cellular connectivity (4G, 5G). The challenge for tier one component suppliers and OEM vehicle designers is to ensure optimal performance of individual antenna modules and entire vehicles after the systems have been integrated.

Verifying the modulation profile of SSC has historically been challenging because it involves a frequency shift as a function of time. Mike Hertz explains that by tracking the frequency measurement parameter, an oscilloscope can display the SSC modulation profile as a function of frequency versus time. Read on to see how it’s done.

When is it appropriate to have a continuous plane, split planes, or no planes under an RJ45 connector? This article from Zachariah Peterson takes a closer look.

This simple measurement demonstrates the most important principle in SI/PI and EMI: that the return current will flow in the path of lowest resistance below about 10 kHz. But above about 10 kHz, the return current will begin to redistribute in the return path to be adjacent to the signal conductor. Read on to learn more.