The paper presents the results of a novel 3-D shared aperture 3 × 3 matrix antenna-array for 26 GHz band 5 G wireless networks. Radiation elements constituting the array are hexagonal-shaped patches that are elevated above the common dielectric substrate by 3.35 mm and excited through a metallic rod of 0.4 mm diameter. The rod protrudes through the substrate of 0.8 mm thickness. It is shown that by isolating each radiating element in the array with a wall suppresses unwanted electromagnetic (EM) wave interactions, resulting in improvement in the antenna's impedance matching and radiation characteristics. Moreover, the results show that by embedding hexagonal-shaped slots in the patches improve the antenna's gain and radiation efficiency performance. The subwavelength length slots in the patches essentially transform the radiating elements to exhibit metasurface characteristics when the array is illuminated by EM-waves. The proposed array structure has an average gain and radiation efficiency of 20 dBi and 93%, respectively, across 24.0–28.4 GHz. The isolation between its radiation elements is greater than 22 dB. Compared to the unslotted array the improvement in isolation between radiating elements is greater than 11 dB, and the gain and efficiency are better than 10.5 dBi, and 25%, respectively. The compact array has a fractional bandwidth of 16% and a form factor of 20×20×3.35 mm3.

Alibakhshikenari, M., Virdee, B., Vadalà, V., Dalarsson, M., de Cos Gómez, M., Alharbi, A., et al. (2022). Broadband 3-D shared aperture high isolation nine-element antenna array for on-demand millimeter-wave 5G applications. OPTIK, 267(October 2022), 1-10 [10.1016/j.ijleo.2022.169708].

Broadband 3-D shared aperture high isolation nine-element antenna array for on-demand millimeter-wave 5G applications

Vadalà, V
;
2022

Abstract

The paper presents the results of a novel 3-D shared aperture 3 × 3 matrix antenna-array for 26 GHz band 5 G wireless networks. Radiation elements constituting the array are hexagonal-shaped patches that are elevated above the common dielectric substrate by 3.35 mm and excited through a metallic rod of 0.4 mm diameter. The rod protrudes through the substrate of 0.8 mm thickness. It is shown that by isolating each radiating element in the array with a wall suppresses unwanted electromagnetic (EM) wave interactions, resulting in improvement in the antenna's impedance matching and radiation characteristics. Moreover, the results show that by embedding hexagonal-shaped slots in the patches improve the antenna's gain and radiation efficiency performance. The subwavelength length slots in the patches essentially transform the radiating elements to exhibit metasurface characteristics when the array is illuminated by EM-waves. The proposed array structure has an average gain and radiation efficiency of 20 dBi and 93%, respectively, across 24.0–28.4 GHz. The isolation between its radiation elements is greater than 22 dB. Compared to the unslotted array the improvement in isolation between radiating elements is greater than 11 dB, and the gain and efficiency are better than 10.5 dBi, and 25%, respectively. The compact array has a fractional bandwidth of 16% and a form factor of 20×20×3.35 mm3.
Articolo in rivista - Articolo scientifico
5G; Array antennas; Isolation wall; Metasurface (MTS); Shared aperture; Three dimensional (3-D);
English
22-lug-2022
2022
267
October 2022
1
10
169708
none
Alibakhshikenari, M., Virdee, B., Vadalà, V., Dalarsson, M., de Cos Gómez, M., Alharbi, A., et al. (2022). Broadband 3-D shared aperture high isolation nine-element antenna array for on-demand millimeter-wave 5G applications. OPTIK, 267(October 2022), 1-10 [10.1016/j.ijleo.2022.169708].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/397079
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