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Electromagnetic waves in communication systems

30 March, 2015 - 14:27

Signals can be transmitted in the form of voltage or current through wires, radio emissions through the air or as light through optical fibres. Transmitted signals can be regarded as electromagnetic waves in communication systems.

In this section, we will introduce some basic characteristics of the electromagnetic waves in communication systems, such as wavelength and frequency. After that, we will discuss the standard frequency allocation of electromagnetic spectrum for communication systems.