Department of Electronic & Electrical Engineering, Unit Catalogue 2007/08
EE30120 Radio & optical waves for communications
| Credits: 6 |
| Semester: 1|
|Before taking this unit you must take EE20090|
Aims: To give students an understanding of the key parameters involved in the wave propagation aspects of a wireless transmission link such as fixed wireless links, mobile links and radar systems. To introduce the basic concepts of the antenna as a system element and the inclusion of propagation factors.
After completion, students should be able to: understand the main features of plane wave propagation in dielectrics, conductors and the lower atmosphere; the influence of plane boundaries and corners on wave propagation; understand propagation models for typical environments; understand the operation of basic antennas, arrays and apertures.
Students will learn the principles behind currently used techniques for describing and analysing the transmission of wireless signals. Taught, facilitated and assessed.
Review of the electromagnetic spectrum, properties of transmission media (atmosphere, fibres, cables).
Wave Propagation: Maxwell's Equations, Plane waves in dielectrics & conductors. Reflection and Refraction at oblique incidence.
Propagation Effects: Layered atmosphere and layered media waveguide modes in optical fibres and waveguides. Plane Earth propagation. Propagation in irregular environments. Introduction to fading.
Antennas: Review of link power budgets. Simple antennas, Hertzian dipole. Phased array of sources. Aperture antennas.