Microstrip antennas have become a part and parcel of today’s wireless communication world because of their low profile, low cost and ease of fabrication in the circuit boards. But poor performances like narrow bandwidth, low power handling capability, low gain etc. confine their application in some cases. 5th generation (5G) wireless communication will suffer from path loss severely, as high frequency bands will be used. To manage this problem, high gain antenna is required. So, this research is mainly devoted to design a high gain 2 × 2 microstrip patch array antenna. The structure of the antenna is designed and simulated using CST Microwave Studio and operates at 28 GHz 5G band. Rogers RT-Duroid 5880LZ is used as the substrate which has a relative permittivity of 1.96. The return loss, gain, bandwidth, VSWR and efficiency of the designed 2 × 2 array antenna is 87 dB, 14 dBi, 1.14 GHz, 1 and almost 93% respectively.

微带天线由于其外形小巧，成本低廉且易于在电路板上制造，已成为当今无线通信领域不可或缺的一部分。但是在某些情况下，诸如窄带宽，低功率处理能力，低增益等不良性能会限制其应用。由于将使用高频带，因此第五代（5G）无线通信将遭受严重的路径损耗。为了解决这个问题，需要高增益天线。因此，本研究主要致力于设计高增益2×2微带贴片阵列天线。天线的结构使用CST Microwave Studio设计和仿真，并在28 GHz 5G频段上运行。Rogers RT-Duroid 5880LZ用作介电常数为1.96的基材。回波损耗，增益，带宽，