Abstract
In previous chapters, the benefit of electromagnetic propagation in communication was introduced. Electromagnetic radiation is the primary principle behind the operation of transmitters and receivers in radios, televisions, satellites, navigation systems and radars, to name a few. However, electromagnetic radiation also is the core problem behind many of the signal integrity issues in electronic and electrical devices and systems. This chapter explores the negative effects of electromagnetic radiation on electronic systems. The chapter first introduces fundamentals of electromagnetic fields, then switches to classifying sources of electromagnetic interference. Following this, various electromagnetic interference reduction techniques are presented. A case study is then provided and discussing electromagnetic interference assessment methods and immunity mechanisms applied in a real application. The case study focuses on the efforts made in order to enhance electromagnetic interference immunity for a distributed clock system in the multi-transceiver digital TIGER-3 radar. Experimental results carried out during tests are presented to verify the immunity techniques. The main objective of this chapter is to provide a reference for students, engineers, and researchers in order to understand principles of electromagnetic induction and to consider its effects during the design phase of a project.
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