EMC/EMI

EMC Blog_

Shielding and Filtering Are Not Independent of One Another

I have lost count of the number of times I have been asked to fix an EMC problem, only to find that a shielding box has been designed or purchased to provide XdB up to fMAX. Or a filter has been designed or purchased with a similar specification, but to reduce cost the filter has been mounted on a printed circuit board (PCB) inside the box, with a cable from it entering or exiting the box through a plain connector.


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Managing EMI and EMC at GHz and Beyond

Tools to Combat Radiated Emissions, for EMC Compliance and Performance Gains

New power-semiconductor technologies like SiC and GaN enable increased efficiency and higher switching frequencies, which allows smaller component sizes. But these gains come at the expense of greater radiated electromagnetic emissions, just as EMC regulations are getting tougher. How can engineers effectively minimize radiated EMI?


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EMC2018

IEEE EMC+SIPI 2018 Exhibition Summary

The 2018 IEEE EMC+SIPI event returned to Long Beach, CA after last visiting in 2011. The event continues to include Signal Integrity & Power Integrity (SIPI) as part of the conference, reflecting the EMC Society’s influence and focus on this critical topic of engineering design.


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Maxim’s Compact Synchronous Buck Converters Provide Industry’s Lowest EMI Performance for Automotive Infotainment and ADAS Applications

Automotive designers can significantly lower EMI and increase efficiency with the pin-compatible MAX20073 and MAX20074 buck converters from Maxim Integrated Products, Inc. The compact converters, which offer one of the lowest EMI performance for low-voltage point-of-load applications, which are ideal for automotive infotainment and ADAS applications.


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RFI and Receiver Sensitivity Analysis in Mobile Electronic Devices

Receiver sensitivity and noise coupling to antenna are two major concerns when developing mobile devices such as smart phones and tablets. There are various causes of degradation of receiver sensitivity. However, most of the time they are due to the noise generated by digital signal harmonics on printed circuit board (PCB) patterns, which couple to the antennas. This article presents a methodology to predict noise to antenna coupling and antenna desense.


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