Antenna Array Design for The Radar Application

Abstract

In this study the design and simulation of a microstrip antenna array for a radar application using the S-band (2 to 4 GHz) have been examined. To enhance the electrical and radiation properties of the suggested antenna, a slot is incorporated into the radiating element and a new power divider is employed. Two rows, each with four pieces, make up the planned array, which has overall measurements of 11.7 x 11.9 cm in width and length respectively. The findings indicate that at a resonance frequency of 3.76 GHz, the suggested antenna has a reflection coefficient of -34 dB. When the four-element array is assembled, the radiation gain is enhanced, reaching 6.18 dB with an efficiency of 98.66%. Furthermore, the antenna array provides complete 360° coverage, enabling omnidirectional and continuous scanning. This feature is essential for radar applications, as it ensures optimal target detection across the entire perimeter around the radar, with no dead zones or interruptions.