Adaptive continuous beam steering in quasi-optical antenna solutions

Abstract : This paper introduces a novel adaptive continuous beam steering (ACBS) solution for quasi-optical antenna technologies. The main advantages of this solution compared to discontinuous beam switching approaches are small steering angle steps (high resolution), improved beam crossing level and lower RF losses. This solution is based on a phase correcting aperture transfer function and the relation between a focal array amplitude tapering and its phase center displacement. The proposed solution is verified by comparing its calculated results with 3D full-wave simulations. Using a 2u2 focal source array illuminating a Fresnel dielectric lens, it is possible to achieve a scanning range of 1.6° with a steering angle step of 0.3° and a beam crossing level of 0.2 dB. The ACBS solution can be integrated into active antennas for self-alignment purposes. © Institution of Engineering and Technology.All Rights Reserved.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-02042761
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Submitted on : Wednesday, February 20, 2019 - 3:36:46 PM
Last modification on : Thursday, June 20, 2019 - 3:29:30 PM

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M.R.D. Kodnoeih, R. Negrier, E.M. Cruz, Y. Letestu, R. Sauleau, et al.. Adaptive continuous beam steering in quasi-optical antenna solutions. 12th European Conference on Antennas and Propagation, EuCAP 2018, Apr 2018, London, United Kingdom. ⟨10.1049/cp.2018.1007⟩. ⟨hal-02042761⟩

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