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Communication Dans Un Congrès Année : 2023

Modulated metasurface array for photonic beam steering at W band

Résumé

This contribution presents a photonically excited modulated metasurface array, which enables one dimensional beam steering with a medium-to-high gain in the sub-THz range. The designed array consists of four rectangular sub-arrays separated 1.16x lambda(0), with lambda(0) being the free-space wavelength at 100 GHz. This spacing permits a scanning range of +/-5 degrees without grating lobes. The sub-arrays radiate at broadside and are excited at their center by a simple substrate integrated waveguide (SIW) circuit. The excitation consists in a Uni-Traveling-Carrier photodiodes (UTC-PD) connected to a wideband DC biasing network. The structure at hand exhibits 26 dB of gain with a 3% relative gain bandwidth, enables power-combining and it is easily scalable for higher gains.
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Dates et versions

hal-04223033 , version 1 (26-11-2023)

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Citer

Jérôme Taillieu, Ronan Sauleau, Mehdi Alouini, David Gonzalez-Ovejero. Modulated metasurface array for photonic beam steering at W band. 17th European Conference on Antennas and Propagation (EuCAP), Mar 2023, Florence, Italy. ⟨10.23919/EuCAP57121.2023.10133650⟩. ⟨hal-04223033⟩
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