electromagnetic compatibility

Electromagnetic compatibility (EMC) is the ability of electronic equipment to function properly without interference from noise sources and without causing disturbances to other electronic equipment. This article will help the reader understand the modes of electrical noise propagation, how fields interact, and the methods of testing for EMC, helping to provide the basis for designing low-emissions, low-susceptibility electronic equipment.

This article addresses two very common questions involving two interrelated and specialized sub-fields within the realm of compliance engineering.

Engineers from the St. Petersburg Electrotechnical University "LETI" have created a new and dynamic way to manipulate electromagnetic compatibility.

The rising number of electronic products on the market has led to an increased demand for electromagnetic compatibility testing.

When two circuits share a return path with non-zero impedance, the result is common-impedance coupling — and real EMC problems. This foundations piece breaks down the theory with circuit models, then backs it up with lab measurements showing how ground impedance affects audio, video, and high-current circuits sharing a common return path.

From open fields to shielded enclosures, radiated emissions testing demands precision at every step — this technical deep dive compares OATS and ALSE measurement methods, antenna configurations, and FCC and CISPR compliance limits across a broad frequency spectrum.

The International Electrotechnical Commission (IEC) releases CISPR 16-1-2:2014+AMD1:2017  CSV. This standard update amendment provides specification for radio disturbance...

SAE International has recently published ARP60493, a Guide to Civil Aircraft Electromagnetic Compatibility (EMC). The guide details information, guidance, and methods for demonstrating EMC on civil aircraft.

The article discusses the behavior of voltage and current waves on a transmission line with different types of loads and explains how to measure the VSWR of an antenna.

Audio rectification is a common EMI problem in which high-frequency RF signals interfere with low-frequency audio circuits, producing audible noise or distortion. This article explains the causes of audio rectification, demonstrates TDMA/GSM effects on speakers, and offers practical EMI mitigation techniques for designers.