EMC/EMI

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Battery Characterization for High Speed Signaling

The complex impedance value over frequency for an electric vehicle’s battery cell is a good measure of the internal cell temperature, the state of charge (SoC), and the state of health. Moreover, comparing the battery stack impedance with the single cell impedances can reveal upcoming high contact resistances. Read on for the details of how to do it.


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Why Are There So Many Standards?

There seems to be more standards every day, and some have rumored that there is a movement to merge or consolidate some existing standards. We will examine some of the standards and how they came to be. For starters, we will limit ourselves to three main types of standards in the industry: on-board or internal, input/output (I/O), and networking. I/O and networking are similar, but networking standards typically apply to longer distance links than I/O standards. There is, as often happens, overlap between these types, and some, such as PCI-express, have standards that apply to more than one of them.


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New Resource Explores Design Approaches to Radiating Hardware

Artech House announced the publication Anechoic Range Design for Electromagnetic Measurements, by Vince Rodriguez. As technologies for wireless communications, including 5G and Internet of Things (IoT), require more complex antennas, practitioners need more information on the best methods to perform measurements on these different types of antennas.


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Nuggets from New Orleans

One reason I enjoy attending a conference is the opportunity to browse presentations I would not ordinarily see. I always pick up something new and useful. Here are some from my recent visit to the IEEE EMC Symposium.


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