In this chapter, metamaterials and their properties in the application of
antenna designs are discussed. Although metamaterials offer great benefits in diverse
areas, this work emphasizes their implementation in the development of smart cities.
The world faces challenges ensued to environmental problems, population growth, and
other current dynamics. New technologies are required to present solutions for cities to
be organised efficiently and effectively while also supporting the environment by
pursuing higher sustainability. Intelligent street lighting systems are one out of the
several approaches that offer promising development opportunities. Intelligent street
lights have already been implemented in some cities, with positive outcomes in terms
of energy savings, reduced traffic, improved infrastructure, and supply, etc. The
different concrete goals of a smart city and intelligent streetlight concepts were
discussed, and the research on metamaterials was accordingly adapted. At the current
state of technology, there are no metamaterial antennas on the market that are directly
declared to be suitable for the installation of intelligent streetlights. However, due to
the great advantages of metamaterial antennas, it would be worthwhile to look into
ways to improve the functionalities of intelligent streetlights using these antennas. In
this chapter, the suitability of metamaterial antennas implemented in streetlights is
studied. Some existing planar antennas were enhanced by incorporating metamaterials
into them. The analysis shows that the radiation performances of the enhanced antennas
are significantly improved. Therefore, metamaterial antennas have the potential of
being applied in a broad range of applications, including intelligent streetlights.
Keywords: Antennas, Complementary-split-ring resonators, Intelligent street lightings, Metamaterials, Split-ring resonators.