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Communication Dans Un Congrès Année : 2023

Quasi-Optical Excitation of a Modulated Dual-Polarized Leaky-Wave Antenna

Résumé

A multi-beam dual-polarized antenna fed by four quasi-optical beamformers is presented in multi-layer substrate integrated waveguide (SIW) technology. The quasi-optical beamforming networks are folded in two layers exploiting a pillbox transition based on several coupling slots and a SIW parabolic reflector. Such beamformers allow to transfer efficiently and over a large band the energy coming from feeding sources in the lower substrate to the radiating part located in the uppermost layer. The radiating part consists of a two-dimensional periodic array of cross-slots etched in the upper conducting plane. The slots are tapered in size to achieve high aperture efficiency and a side lobe level (SLL) below -25 dB. The proposed antenna system operates in the entire 28 GHz 5G band. The footprint of the antenna is equal to the radiating aperture with a size of 11.6x11.6 cm(2). The proposed structure features 360 degrees scanning in the azimuth plane by beam switching and more than +/- 55 degrees in the elevation plane by frequency steering with a realized gain higher than 20 dBi.
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Dates et versions

hal-04222954 , version 1 (29-09-2023)

Identifiants

Citer

Kamil Yavuz Kapusuz, Adham Mahmoud, Sam Lemey, Hendrik Rogier, Mauro Ettorre. Quasi-Optical Excitation of a Modulated Dual-Polarized Leaky-Wave Antenna. 17th European Conference on Antennas and Propagation (EuCAP), Mar 2023, Florence, Italy. ⟨10.23919/EuCAP57121.2023.10132929⟩. ⟨hal-04222954⟩
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