Millimeter-wave Antenna Design and Analysis for 5G Mobile Communication

This study presents a compact antenna designed for millimeter-wave applications in the 5G frequency range. The proposed antenna operates at a resonant frequency of 60 GHz, utilizing a 50 Ω microstrip-line feeding technique. The antenna is printed on a Rogers RT5880 substrate with a relative permittivity of 2.2, a loss tangent of 0.0009, and dimensions of 4.6×3.6×0.25 mm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup>. Results indicate a minimum return loss of -13.31 dB, a gain of 4.28 dBi at 60 GHz, and a bandwidth of 7.69 GHz. Array antenna with 4 element with 2.5 mm spacing has been proposed to achieve 11.6 dBi gain for mobile data applications on millimeter wave frequencies range from 46.61 GHz to 63.47 GHz and 71.11 GHz with bandwidth of 16.86 GHz and 3.39 GHz respectively.Overall size of the antenna is 8×12×0.25 mm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> . The proposed antenna offers several advantages, including a broad bandwidth, high gain, improved efficiency, compact size, low profile, and a simple structure.