_{Gordon and Betty Moore Professor Emeritus of Engineering and Applied Science at the California Institute of Technology (Caltech). Ph.D. - Caltech.}

_{Professor, Electrical Engineering and Computer Sciences, University of California, Berkeley. Ph.D. - UC Berkeley.}

_{Arthur F. Thurnau Professor of Electrical Engineering and Computer Science, University of Michigan in Ann Arbor. Ph.D. - University of Texas at Austin.}

Electromagnetics is a subfield of electrical engineering that deals with the behavior of electric and magnetic fields and their interactions with matter. It encompasses the study of electric and magnetic fields, waves, and the properties of materials that interact with these fields. Electromagnetics is a fundamental field of electrical engineering, and it is used in a wide range of applications, including telecommunications, radio-frequency engineering, and power systems.

One of the key concepts in electromagnetics is the concept of Maxwell’s equations, which are a set of mathematical equations that describe the behavior of electric and magnetic fields. Maxwell’s equations are widely used to analyze and design electromagnetic systems, and they form the foundation of the field of electromagnetics.

Another important concept in electromagnetics is the concept of electromagnetic waves, which are waves that are composed of oscillating electric and magnetic fields. Electromagnetic waves include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays and gamma rays. Understanding the properties of electromagnetic waves is crucial for the design and operation of a wide range of electromagnetic systems.

The concept of propagation of electromagnetic waves is also important in electromagnetics. It includes the study of the behavior of electromagnetic waves as they travel through different media, such as air, vacuum, and various types of materials. Understanding the propagation of electromagnetic waves is crucial for the design and operation of a wide range of communication systems and antennae.

Another important concept in electromagnetics is the concept of electromagnetic compatibility (EMC), which is the study of how electromagnetic energy interacts with electronic systems. EMC is essential for the correct operation of electronic systems and is used to ensure that electronic systems do not interfere with each other and that they are protected from interference.

The concept of electromagnetic fields in materials is also important in electromagnetics. It includes the study of how electromagnetic fields interact with different types of materials, such as conductors, dielectrics, and magnetic materials. Understanding the properties of electromagnetic fields in materials is crucial for the design and operation of a wide range of electronic devices and systems.

In conclusion, electromagnetics is a subfield of electrical engineering that deals with the behavior of electric and magnetic fields and their interactions with matter. It encompasses the study of electric and magnetic fields, waves, and the properties of materials that interact with these fields. Electromagnetics is a fundamental field of electrical engineering, and it is used in a wide range of applications, including telecommunications, radio-frequency engineering, and power systems. Understanding the key concepts of electromagnetics such as Maxwell’s equations, electromagnetic waves, propagation, electromagnetic compatibility and electromagnetic fields in materials is crucial for the design and operation of a wide range of electronic systems.