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Parallel-Plate Waveguide Lens for Mechanical Beam Scanning Using Gap Waveguide Feed System

Abstract : A parallel-plate waveguide lens with mechanically reconfigurable feed network for continuous beam scanning is presented. The quasi-optical system is designed using an optimization process based on previously developed ray-optical methods. The feed network relies on the non-contacting properties of groove gap waveguides which allows for a fixed input port and simple mechanical actuation. Numerical results are presented for a Ka-band lens design, demonstrating a high scanning performance over an angular range of ± 35° with scan losses lower than 2dB; the simulated mismatch loss is lower than -15 dB between 27 and 31 GHz. The proposed all-metal beamformer is therefore a promising solution for next-generation Satcom applications. © 2020 EurAAP.
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https://hal.archives-ouvertes.fr/hal-02931824
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Monday, September 7, 2020 - 11:40:13 AM
Last modification on : Wednesday, April 27, 2022 - 3:57:58 AM

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T. Strober, S Tubau, Hervé Legay, E. Girard, G. Goussetis, et al.. Parallel-Plate Waveguide Lens for Mechanical Beam Scanning Using Gap Waveguide Feed System. 14th European Conference on Antennas and Propagation, EuCAP 2020, Mar 2020, Copenhagen, Denmark. pp.9135399, ⟨10.23919/EuCAP48036.2020.9135399⟩. ⟨hal-02931824⟩

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