Design and Analysis of Wideband RHC Polarization Edge Truncated Square Patch Antenna Array for 28 GHz Communication
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Abstract
This article presents the design, simulation, and analysis of a high gain, compact size, circularly polarized antenna array operating at 28 GHz frequency in response to the growing needs of 5G networks for small, low profile, high gain, and high-performance antennas. Four identical square patch antennas with two truncated corners make up the antenna array. The patch antennas are powered by a corporate feeding network, which also provides a wide axial ratio bandwidth and enhances the antenna gain. Using Altair FEKO software, antenna simulations revealed an antenna gain of 20.4476 (13.1 dB) and a radiation efficiency of around 99%. The reflection coefficients (S11) were approximately -19 dB throughout a broad bandwidth from 27.25 GHz to 31.75 GHz. Throughout the 27.7 GHz to 28.3 GHz bandwidth, the antenna axial ratio is less than 3dB. As per the outcomes of the calculations, the suggested antenna is appropriate for millimeter-wave communications, particularly for 5G applications that function at frequencies of 28 GHz.
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