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Article Dans Une Revue Micromachines Année : 2021

Waveguide manufacturing technologies for next-generation millimeter-wave antennas

Résumé

Some recent waveguide-based antennas are presented in this paper, designed for the next generation of communication systems operating at the millimeter-wave band. The presented prototypes have been conceived to be manufactured using different state-of-the-art techniques, involving subtractive and additive approaches. All the designs have used the latest developments in the field of manufacturing to guarantee the required accuracy for operation at millimeter-wave frequencies, where tolerances are extremely tight. Different designs will be presented, including a monopulse antenna combining a comparator network, a mode converter, and a spline profile horn; a tunable phase shifter that is integrated into an array to implement reconfigurability of the main lobe direction; and a conformal array antenna. These prototypes were manufactured by diverse approaches taking into account the waveguide configuration, combining parts with high-precision milling, electrical discharge machining, direct metal laser sintering, or stereolithography with spray metallization, showing very competitive performances at the millimeter-wave band till 40 GHz. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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hal-03514894 , version 1 (02-06-2022)

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L. Polo-López, P. Sanchez-Olivares, E. García-Marín, J.A. Ruiz-Cruz, J. Córcoles, et al.. Waveguide manufacturing technologies for next-generation millimeter-wave antennas. Micromachines, 2021, 12 (12), pp.1565. ⟨10.3390/mi12121565⟩. ⟨hal-03514894⟩
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