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.
