Design of Rectangular Micro-strip Patch Antenna Using CST

In the Industrial, Scientific, and Medical (ISM) band (2.45 GHz), rectangular micro-strip patch antenna (RMPA) is simulated and its performance is analyzed in this study. High gain, broad bandwidth, and small size antennas that can provide improved performance over a wide variety of frequency spectrum as are developed over a Flame Retardant-4 (FR-4) substrate are required by the latest mobile communication systems. In order to obtain both compact dimensions and optimal parameters like high radiation efficiency, high gain, and resonating frequency—the antennas’ optimal design parameters are chosen. Antenna parameters like return loss, gain, and width as well as dimensions like length (L), width (W), and substrate dielectric are calculated by CST software. The antenna is intended to operate between 2 and 2.5 GHz. For this reason, this antenna is ideal for use in medical settings. The constructed antenna’s simulated results are obtained with CST Microwave Studio, and micro strip inset feed is employed. Impedance matching employs a micro-strip line feed due to its simplicity in construction, the ease of achieving a match by altering the inset position, and its straightforward modelling process.