Design of Narrow Slotted Rectangular Microstrip Antenna

This paper presents a design of narrow slotted rectangular microstrip antenna and experimentally studied on Ansoft Designer v-2.2.0 software. This design technology is achieved by cutting all three slots in microstrip antenna and placing a single coaxial feed. Rectangular patch antenna is designed on a FR4 substrate of thickness 1.6 mm and relative permittivity of 4.4 and mounted above the ground plane at a height of 3 mm. Bandwidth as high as 13.78% are achieved with stable pattern characteristics, such as gain and cross polarization, within its bandwidth. Impedance bandwidth, antenna gain and return loss are observed for the proposed antenna. Details of the measured and simulated results are presented and discussed