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Wideband RCS reduction of microstrip antenna using artificial magnetic conductor metasurface

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Abstract

This paper presents a novel microstrip patch antenna with a Square Patch Artificial Magnetic Conductor (AMC) Checkerboard Metasurface. The proposed antenna shows wide-band Radar Cross Section (RCS) reduction without degrading the antenna radiation pattern. The design shows overall RCS reduction from 6.93 GHz to 24.59 GHz (112.06%) as compared with the metal plate and the reference antenna. 10 dB RCS reduction is obtained from 8.317 GHz to 11.317 GHz (30.56%) and from 13.183 GHz to 16.183 GHz (20.43%) as compared with the Reference Patch Antenna. With this design, In-band as well as out-of-band Radar Cross Section reduction can be obtained. The antenna shows enhancements in gain and radiation pattern parameters after metasurface loading. The unit cells show good angular stability for the Transverse Electric (TE) and the Transverse Magnetic (TM) modes. RCS reduction is also achieved for the oblique incidence. The novelty of the presented design is the use of the same type of Artificial Magnetic Conductor unit cells with different dimensions for achieving wideband Radar Cross Section reduction in contrast to the use of different types of Artificial Magnetic Conductor unit cells.

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Authors and Affiliations

  1. MPSTME, Narsee Monjee Institute of Management Studies, Mumbai, Maharashtra, India

    Krunal Patel

  2. Amity University, Mumbai, Maharashtra, India

    M Joshi

Authors
  1. Krunal Patel
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  2. M Joshi
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Correspondence to Krunal Patel.

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Patel, K., Joshi, M. Wideband RCS reduction of microstrip antenna using artificial magnetic conductor metasurface. Sādhanā 48, 88 (2023). https://doi.org/10.1007/s12046-023-02141-z

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  • DOI: https://doi.org/10.1007/s12046-023-02141-z

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