DESIGN AND ANALYSIS OF A MICROSTRIP PATCH ANTENNA ARRAY FOR 5G APPLICATIONS

Abstract

Recent advancements in wireless communication systems have underscored the importance of antennas, with a growing demand for high-performance, compact, cost-effective, multiband, and wideband solutions in both commercial and military sectors. Microstrip patch antennas (MPAs) have emerged as a compact option that meets these requirements effectively. The study focused on designing and analyzing a microstrip patch antenna array for 5G applications, aiming to enhance performance and efficiency in next-generation communication networks. Utilizing ANSYS HFSS software, the research sought to optimize design parameters to achieve high gain, wide bandwidth, and low cross-polarization levels suitable for 5G systems. The proposed antenna designs on RT duroid 5880, FR4, and Mica substrates at 28 GHz demonstrated promising characteristics in radiation pattern, impedance matching, and efficiency for 5G applications. These antennas exhibited low reflection coefficients and good impedance matching, with VSWR values approaching 1. Operating within the frequency range of 26.1 GHz to 28.0 GHz, bandwidths varied from 900 MHz to 3700 MHz, with FR4 configurations offering wider bandwidths. Observed gain values ranged between 7.49 dB and 12.82 dB, with higher gains seen in RT material configurations with Ellipse modification. Directivity values between 9.78 dB and 12.79 dB indicated the antennas' focused directional radiation. Efficiency levels ranged from 76.58% to 99.86%, with RT material and Reflector modification antennas showing superior efficiency. The RT material with Ellipse modification design outperformed others in terms of efficiency, gain, directivity, return loss, and VSWR. Conversely, FR4 with Reflector modification provided broader bandwidth but compromised on gain and directivity.