ABSTRACT

This chapter describes how electromagnetic (EM) concepts impact on practical design for EM compatibility (EMC) and assesses engineers wishing to work in this exciting area. It points out that modern high-speed electronics have to cope in addition to EMC also with signal integrity issues. The chapter is concerned with the propagation of fast signals in the compact nonuniform environment of a typical multilayer printed-circuit board. There are two aspects to EMC. First, systems must be designed so that they do not emit significant amounts of unintended EM radiation into their environment. Second, systems must be capable of operating without malfunction in their intended environment. The impact of EMC is thus multifaceted. The existence of EMC design procedures which adhere to international standards, ensures that goods may be freely moved between states and customers have a reasonable expectation of a well engineered, reliable and safe product.