![]() The material is based on a single semester overview course suitable for later year undergraduate students in engineering or science. ![]() It is placed here so that the contexts in which the knowledge of material properties is important have already been established. The author takes the unusual step of including a fuller consideration of the electromagnetic properties of materials late in the book rather than as an introductory chapter as found in more theoretical treatments. That requires an understanding of noise and its importance in systems design. Radio wave propagation is placed in a practical context by considering the design aspects of communications systems at microwave frequencies. Most attention is given to the space wave since it is the mechanism most commonly encountered in contemporary applications. Course Description: ECE 458 is a follow-on course to ECE 350 concerned with the complexities of EM wave propagation on and around our planet with a special focus on near-Earth space environment including the troposphere, stratosphere, mesosphere, ionosphere, magnetosphere, and solar wind, the last three occupied by magnetized plasmas. ![]() It then examines in some detail how the proximity of the earth and the atmosphere cause the radiation travelling from a transmitter to a receiver to follow one or more of three mechanisms – the surface, sky and space waves. The treatment commences with an analysis of how energy (and power) is conveyed in free space, taking essentially a radiative transfer approach and thus avoiding the need to understand electric and magnetic field propagation at the outset. This work treats the essential elements of radio wave propagation without requiring recourse to advanced electromagnetic concepts and equations however it provides sufficient detail to allow those concerned with wireless systems to acquire quickly a practical working knowledge of the important concepts. ![]()
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January 2023
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