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Integrated Slotted Serpentine Waveguide to Enhance Radiation Properties and Efficiency

Abstract : Slotted waveguides are often used when high-power and high-efficiency antennas must be designed and particularly for millimeter waves applications (automotive radar for example). But it is not easy to choose any distance between radiation slots because of the guided wavelength, to obtain a wide beam in E plane and so to cover a wide angular sector in beam scanning antennas. Moreover, the main beam depends of frequency because it is a progressive wave antenna. In this article, the authors propose an original solution based on a slotted serpentine waveguide with slots on the narrow wall of the waveguide allowing to obtain a very wide radiation pattern in E plane, and this antenna is manufactured, thanks a PCB (printed circuit board) process with empty waveguides to enhance the efficiency for the global structure. Simulations and measurements are given to validate the idea and the technological process in W band, and some different prototypes demonstrate that it could be possible to obtain a wide angular sector in a beam scanning antenna configuration.
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https://hal.archives-ouvertes.fr/hal-03687725
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Friday, June 3, 2022 - 3:12:15 PM
Last modification on : Sunday, June 5, 2022 - 3:16:00 AM

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Distributed under a Creative Commons Attribution 4.0 International License

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Mohamed Himdi, Yassine Aouial, Olivier Lafond. Integrated Slotted Serpentine Waveguide to Enhance Radiation Properties and Efficiency. IEEE Access, 2022, 10, pp.51093-51099. ⟨10.1109/ACCESS.2022.3172952⟩. ⟨hal-03687725⟩

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