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Article Dans Une Revue IEEE Antennas and Wireless Propagation Letters Année : 2023

Compact Additively Manufactured Conformal Slotted Waveguide Antenna Array

Résumé

In this work we present the design and fabrication in metallic 3D-printing of a compact conformal slotted waveguide antenna array operating in the Ku-band. The application objective, although not limited only to this, is the optimisation of an antenna element which by stacking will be able to form a quasi-cylindrical sector. A beamforming network will be used for beam-steering in the elevation plane as coverage in the azimuthal plane is guaranteed by the conformal geometry. The compact design of the antenna element is therefore of great significance. For this reason, a direct feeding scheme by a coaxial connector is adopted. The antenna has been optimized following multiple parametric analyses of its geometrical parameters for the enhancement of the bandwidth, return losses and realized gain. The antenna was fabricated with Selective Laser Melting in aluminium and the experimental results agree well with the numerically calculated ones. The proposed CSWAA exhibits a reflection coefficient below -10 dB, realized gain above 14 dBi, as well as good cross-polarization and side-lobe level over a relative bandwidth of 8%.
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Dates et versions

hal-04141763 , version 1 (29-06-2023)

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Paternité - Pas d'utilisation commerciale

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Citer

Charalampos Stoumpos, Thierry Le Gouguec, Rozenn Allanic, María García-Vigueras, Anne-Charlotte Amiaud. Compact Additively Manufactured Conformal Slotted Waveguide Antenna Array. IEEE Antennas and Wireless Propagation Letters, 2023, pp.1-5. ⟨10.1109/LAWP.2023.3266376⟩. ⟨hal-04141763⟩
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