A CPW Koch dipole slot antenna

Abstract

Summary form only given. The latest developments in wireless communications demand increasingly smaller devices. In this work, the design of a CPW slot antenna to be used in wireless communications at the ISM frequency band is. presented. The antenna's shape and dimensions are optimized to achieve area minimization, by applying the properties of fractal shapes at the radiating slots. As is well known, the property of self-similarity that fractal shapes possess has been successfully applied in other types of antennas with great success. Fractal shapes have been used in the past in order to achieve multiband performance as well as to increase the length of an antenna without increasing the area that it occupies. The Sierpinski gasket and the Koch monopole are the most representative examples of such antennas. Direct application of fractal theory on a CPW slot antenna results in a CPW Koch dipole slot antenna, which has never been studied before to the best of our knowledge. The effects of fractal miniaturization in this type of antenna, mainly regarding the radiation pattern, the antenna efficiency, and the applicability of fractal shapes in the design of antennas for wireless communication systems are presented herein.