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Bogdan Adamczyk

Dr. Bogdan Adamczyk is professor and director of the EMC Center at Grand Valley State University (http://www.gvsu.edu/emccenter) where he performs EMC educational research and regularly teaches EM/EMC courses and EMC certificate courses for industry. He is an iNARTE-certified EMC Master Design Engineer. He is the author of two textbooks, “Foundations of Electromagnetic Compatibility with Practical Applications” (Wiley, 2017) and “Principles of Electromagnetic Compatibility: Laboratory Exercises and Lectures” (Wiley, 2024). He has been writing “EMC Concepts Explained” since January 2017.

From This Author

Measuring Differential- and Common-Mode Current Radiation from Cables

This article discusses the common-mode and differential-mode radiation from cables and presents the measurement results from the SMPS connecting wires.

Principles of Switched-Mode Power Supply Design for EMC Performance

This article discusses the basics of a step-down (buck) DC Switched-Mode Power Supply (SMPS). It should serve at an entry-level tutorial and a building step towards the more advanced designs.

Dipole-Type Antennas in EMC Testing: Part II

Part II of this two-article series focuses on log-periodic and biconical antenna impedance, VSWR, and radiated emissions measurements.

Dipole-Type Antennas in EMC Testing

This two-article series is devoted to a dipole family of antennas used in EMC testing: half-wave dipole, quarter-wave monopole, log-periodic, and biconical antenna. Part I presents the antenna models and the construction details.

Basic EMC Rules

This article discusses the origins, justification, and interrelations between some of basic EMC rules regarding the highest significant frequency (bandwidth) present in digital signals, definition of the electrically short structures, and the transmission line criterion.
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Impact of Decoupling Capacitors and Embedded Capacitance on Impedance of Power and Ground Planes: Part II

We investigate two four-layer PCBs with power and ground plane pairs spaced 3 mils and 30 mils apart.

Impact of Decoupling Capacitors and Embedded Capacitance on Impedance of Power and Ground Planes: Part I

We investigate two four-layer PCBs with power and ground plane pairs spaced 3 mils and 30 mils apart.

Skin Depth in Good Conductors

This tutorial article focuses on the skin depth phenomenon in good conductors. In order...

EMC Filters Comparison Part II: π and T Filters

In this article the performance of the π and T filters is evaluated and compared to that of the CL and LC filters.

Balanced-Unbalanced Antenna Structures and Baluns

This article explains the operation of a balun that transforms an unbalanced antenna structure into a balanced one.
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