Course Catalogue.

After participating in this course, you will be able to:

• Understand EM phenomena, environments, and the principles of emission and susceptibility.
• Analyze signals and spectra, and utilize antennas for EMC.
• Identify and mitigate conductive, magnetic, electric field, and radiation coupling.
• Apply test and measurement methods for emission assessment and comply with EMC regulations.
• Design and evaluate effective shielding enclosures for electromagnetic protection.

Description
Understanding Electromagnetic Compatibility (EMC) is critical for ensuring the reliable performance of electrical and electronic systems across industries such as commercial electronics, automotive, aerospace, and defence. This course provides a comprehensive foundation in EMC principles, focusing on the interaction between sources, receptors, and coupling paths of electromagnetic interference. Students will explore real-world EMC challenges, delve into the physics of electromagnetic fields, and examine the behaviour of electrical systems through the lens of circuit theory and transmission line concepts.

Through a multidisciplinary approach, the course equips students with practical skills in identifying and mitigating interference using shielding, grounding, filtering, and PCB design techniques. It also covers regulatory standards, EMC testing methodologies, and the impact of phenomena like electrostatic discharge and lightning. By the end of the course, participants will be prepared to design and evaluate systems with improved electromagnetic immunity and reduced emissions, balancing performance with regulatory compliance and cost-effectiveness.

Who Should Attend
This course is intended for engineers who design and/or operate electronic circuits for various engineering applications.

Course Syllabus

Day I

Introduction

• Components of EMC
• Source
• Receptor
• Coupling path
• Types of Interference
• External
• Man-made
• Examples of practical EMC problems

Fundamental Understanding of Electrical Systems

• Wavelength, speed of light, permittivity and permeability in free space
• Review of circuit and electromagnetism:
• Electric and magnetic field
• Faraday law
• Resistance, capacitance and inductance
• Ohm’s law, KCL and KVL
• Relation between circuit and field laws
• Transmission line
• Signals and systems

Coupling Modes in EMC

• Conducted Coupling
• Conductive (direct connection)
• Common impedance coupling
• Field Coupling (Near-Field)
• Capacitive (E-field)
• Inductive (H-field)
• Radiated Coupling (Far-Field)
• EM wave propagation in space

Antenna for EMC Testing

• Antenna gain, bandwidth and reflection coefficient.
• Types of Antennas.

EMC Regulations

• Government requirements.
• Emission regulations
• Susceptibility regulations

EMC Testing and Measurement

• Overview of EMC Standards and Test Setups
• Conducted Emissions and Immunity Tests

Day II

Electrostatic Discharges

• Causes of electrostatic discharges
• Effects of electrostatic discharges

Lightning Electromagnetic Effects

• Lightning phenomena.
• Direct and indirect effects of lightning.

Shielding

• Shielding effectiveness
• Shielding material
• Static field shielding.

Grounding Consideration

• Purpose of Grounding in EMC
• Types of grounding.
• Single-Point vs. Multi-Point Grounding
• Ground Loops and EMI
• Stitching Vias and Ground Plane Segmentation

Filtering

• Common and differential mode filtering
• Low, high and band pass filters.

Introduction To Printed Circuit Board (PCB) EMC Design

• How PCB traces act as antennas
• Importance of low-impedance return paths
• Impact of split ground planes and layer transitions
• Loop area and its effect on radiated EMI

Tradeoffs between SI constraints (rise time, reflections) and EMC performance