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Increased RCS for Enhanced Detection by Radars for Road Safety Applications

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Handbook of Metamaterial-Derived Frequency Selective Surfaces

Part of the book series: Metamaterials Science and Technology ((METSCTE,volume 3))

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Abstract

Metasurfaces are a well-known interesting topic nowadays for many researchers and for various applications. The idea of anomalous reflection is proposed to demonstrate the concept of retrodirectivity. Retrodirectivity can be very important property particularly for radar applications at microwave and millimeter wave frequencies where the enhancement of the radar cross section of poorly scattering targets is needed. Many conventional topologies for such feature are presented in the literature such as corner dihedrals and Van Atta arrays; however, these topologies can be bulky and difficult to fabricate. Indeed metasurfaces can be compact and of remarkable physical properties, the main challenge is to design retrodirective metasurfaces that can operate for multiple incident angles simultaneously. In this chapter, we introduce various techniques to design multi-angle retrodirective metasurfaces from cascading, surface impedance modulation to Fano resonance. The design procedure is given following the generalized law of reflection and measurements have been carried out for several prototype designs to validate the simulation results. From the applicative aspect, this project is in the framework of project CYCLOPE, which is dedicated to protect vulnerable road users such as cyclists and pedestrians.

To demonstrate the potential of retrodirective metasurfaces for such applications, measurements have been carried out using a mannequin alongside the metasurface designs. The metasurface design showed remarkable results by increasing the radar cross section of the mannequin when implemented alongside the model.

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Authors and Affiliations

  1. Railenium, Villeneuve d’ascq, France

    Mohammed Kalaagi

  2. Université Gustave Eiffel, Villeneuve d’ascq, France

    Divitha Seetharamdoo

Authors
  1. Mohammed Kalaagi
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  2. Divitha Seetharamdoo
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Correspondence to Divitha Seetharamdoo .

Editor information

Editors and Affiliations

  1. Centre for Electromagnetics, CSIR-National Aerospace Laboratories, Bangalore, Karnataka, India

    Shiv Narayan

  2. Energie, Materiaux et Telecommunications, Institut National de la Recherche Scient, Montreal, QC, Canada

    Arun Kesavan

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Kalaagi, M., Seetharamdoo, D. (2022). Increased RCS for Enhanced Detection by Radars for Road Safety Applications. In: Narayan, S., Kesavan, A. (eds) Handbook of Metamaterial-Derived Frequency Selective Surfaces. Metamaterials Science and Technology, vol 3. Springer, Singapore. https://doi.org/10.1007/978-981-15-8597-5_31-1

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  • DOI: https://doi.org/10.1007/978-981-15-8597-5_31-1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-8597-5

  • Online ISBN: 978-981-15-8597-5

  • eBook Packages: Springer Reference EngineeringReference Module Computer Science and Engineering

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