Smiley Antenna: Design of a SWB Antenna Based on an UWB Antenna Modifications
摘要
This chapter shows the modifying process of an ultra-wideband (UWB) antenna to become a superwideband (SWB) antenna. Based on a design previously existing in the literature, modifications were made to patch geometry and feed line. Modifications consisted mainly of insertion of circular, rectangular, and U-shaped slots. With modifications made, a bandwidth of 2.6–30 GHz was achieved. Subsequently, antenna was manufactured and characterized with laboratory equipment, where results were observed according to simulations. Finally, modifications made to antenna generate a shape similar to a face with a smile; for that reason, we have decided to call our work “Smile Antenna.”