Multilayer slotted microstrip antenna for Wi-Fi application

A simple microstrip antenna with multilayer structure having 20% bandwidth and spreading over 4.4/5.3-GHz Wi-Fi communication band is introduced. Due to the stacking of two substrates and slotted patches, a wide bandwidth is obtained as compared to simple rectangular patch. This antenna is compact with occupying an overall area of 26×30×6 mm³. It gives a moderate gain over a whole frequency band with good radiation characteristics. The entire design with simulation results are demonstrated and discussed.