A wideband multiple rectangular slotted patch antenna for 5Gapplications

Abstract

A microstrip antenna with four slots in the center of the patch for 5G applications focusing on enhancing bandwidthand other key metrics is presented. The proposed antenna with multiple rectangular slots and a partial groundstructure intends to address the difficulties that arise from working with the millimeter-wave frequencies of the 5Gnetwork. Operating at a frequency of 28.082 GHz, the antenna exhibits remarkable characteristics that position itas a promising candidate for 5G communication systems. The antenna’s design is based on optimization processthat involves iterative modifications to its geometry and structure. The final configuration consists of a rectangularpatch incorporated with four symmetric rectangular slots, providing the antenna with the capability to achieve abandwidth of 2.585 GHz. Constructed on a Rogers RT 5858 with desirable electrical properties, the suggesteddesign provides a radiation efficiency of 73.43%, making it well-suited for high-frequency operations. Simulationresults obtained using the CST Microwave Studio suite prove the antenna’s outstanding performance. The returnloss curve demonstrates a value of approximately−32.395 dB, accompanied by a−10 dB return loss. Furthermore,the Voltage Standing Wave Ratio (VSWR) remains consistently below 2, indicating favorable impedance matching.With a gain of 5.904 dB and a directivity of 8.049 dB, the antenna exhibits excellent signal amplification and controlover radiation patterns. At the frequency where resonance occurs, the antenna’s three-dimensional radiationpattern demonstrates how effectively it can transmit signals with focus and direction