A dual-band stacked rectangular microstrip antenna

Abstract

A dual-band characteristic of stacked rectangular microstrip antenna is experimentally studied. It is a probe fed antenna for impedance matching with 50Ω coaxial cable. This antenna works well in the frequency range 2.86-4.63 GHz. It is basically a low cost, light weight medium gain antenna which is used for mobile communication. The variations of the length and width (1 mm) of the stacked rectangular patch antenna have been done. It is found to have dual resonance with increasing lower resonance frequency and almost constant upper resonance frequency with increases of the length and width of rectangular microstrip antenna. The input impedance and voltage standing wave ratio (VSWR) return loss have been measured with the help of network analyzer.