JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• 1. To study the electromagnetic interference control techniques.
• 2. To learn electromagnetic compatibility issues with regard to the design of PCBS.
• 3. To discuss electromagnetic interference measurements and standards.
• 4. To instil knowledge on the EMI coupling mechanism and its mitigation techniques.
• 5. To impart comprehensive insight about the current EMC standards and about various measurement techniques.

Course Outcomes

After completion of the course students will be able to:

• 1. Find solution to EMI Sources, EMI problems in PCB level design
• 2. Find solution to EMI Sources, EMI problem in Subsystem and system level design.
• 3. Measure emission immunity level from different systems to couple with the prescribed EMC standards.

UNIT - I

Introduction and History of EMI-EMC, Sources & effects of EMI, Intersystem & Intrasystem, Electromagnetic Environment Effects (E3), Common EMI measurement units. Time domain & frequency domain representation of periodic, non-periodic and digital waveforms.

UNIT - II

Conducted Emission & Susceptibility, Radiated Emission & Susceptibility, ESD, Introduction of Commercial & Military EMI Standards, Measurement of EMI, Shielded Enclosure, Antennas, Probes Equipment & Accessories used in EMI measurement.

UNIT - III

EMI Mitigation Techniques, Grounding, Shielding, Filtering & Bonding, EMI Suppression Components like EMI Filters (DC/AC), RFI Filters, EMI Gaskets, RF absorbing material, Transient Voltage Suppressors, Honey-comb vents etc., Cables, Connectors.

UNIT - IV

Sub-system and System level EMC, EMC Design of analog and digital Sub-systems, Mixed Signal PCB layout for better EMC, Analog and Digital grounds, EMC of A/D & D/A Converters, EMC of DC-DC Converters and Power Supplies, EMC Design Guidelines , Introduction to Signal Integrity.

UNIT - V

Introduction to Numerical EMI & EMC Simulation Techniques, Survey of Commercially available EMC Software, Introduction to Intentional EMI, EMP, Electromagnetic Weapons.

TEXT BOOK:

• 1. Clayton R. Paul - Introduction to Electromagnetic Compatibility, Wiley Publication.

REFERENCE BOOKS:

• 1. Dr. V.P. Kodali - Engineering Electromagnetic Compatibility, IEEE Press, 1996.
• 2. Henry W. Ott - Electromagnetic Compatibility Engineering, Wiley Publication. M.TECH.- I YEAR- II SEMESTER MICROWAVE AND RADAR ENGINEERING