ABSTRACT
This part introduction presents an overview of the key concepts discussed in the subsequent chapters. The part describes the Fourier techniques that can be used to carry out broadband analysis of systems which are excited by signals with finite energy. It also describes impulsive waveforms that carry infinite energy have to be analyzed utilizing the Laplace transform techniques. The part presents the physical implications of the solution techniques. A steady-state solution is generally a solution to a given physical problem when the system is excited by a narrowband or specifically by a single frequency signal. However, when the system is excited by a wideband of signals, the problem becomes quite different. For example, typically an antenna pattern is defined at a single frequency.
