Performance Enhancement of Rectangular Microstrip Antenna by Inserting Notches and Slits

This paper depicts the effect on the resonant frequency and impedance bandwidth of a rectangular microstrip antenna. It is one of the simple ways for the effective improvement of the bandwidth of the microstrip antenna. The method uses the insertion of notches and slits on the planer radiating surface of the antenna structure. The microstrip antennas structure has configured on FR4 epoxy substrate. The configurations are simulated and analyzed using ADS software. The antenna parameters, in terms of bandwidth, gain, and directivity, are studied for the analysis. The antenna enhanced the bandwidth up to 37% with a good return loss of −33 dB. This study would be helpful in the designing of compact microstrip antennas with enhanced bandwidth for various purposes in the field of wireless communications in general and various earth science applications in particular at super high microwave frequency.