A Slotted Patch Antenna for 5G Applications Operating at 28 GHz and 37 GHz

In the current age of wireless communication, technology plays a pivotal role by facilitating swift and secure data exchange, our study presents a pioneering dual-band slotted patch antenna customized for 5G mobile communications. This antenna, with dimensions of 7.91×7.85×0.32 mm
³
, integrates four rectangular slots and a single circular slot, meticulously positioned on the radiating surface. The design and evaluation were carried out on a Rogers RT6002 (lossy) substrate, featuring a relative permittivity of 2.94 and a loss tangent of 0.0012, through simulations conducted in CST Microwave Studio software. The analysis yielded impressive outcomes, including return losses of -36.45 dB and -22.81 dB, gains of 5.87 dBi and 5.404 dBi, and impedance bandwidths of 686 MHz and 1.983 GHz at resonant frequencies of 28 GHz and 37 GHz, respectively. Additionally, the study elaborates on the voltage standing wave ratio (VSWR) and the radiation patterns on the E-plane and H-plane of the antenna. Given its superior performance, this antenna is highlighted as a strong and viable candidate for future 5G mobile communication technologies.