High‐gain low‐RCS slot antenna array based on checkerboard surface | Zendy

Jiang Hao | Zendy; Xue Zhenghui | Zendy; Zeng Qingyun | Zendy; Li Weiming | Zendy; Ren Wu | Zendy

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High‐gain low‐RCS slot antenna array based on checkerboard surface

Author(s) -

Jiang Hao,

Xue Zhenghui,

Zeng Qingyun,

Li Weiming,

Ren Wu

Publication year - 2018

Publication title -

iet microwaves, antennas and propagation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.555

H-Index - 69

eISSN - 1751-8733

pISSN - 1751-8725

DOI - 10.1049/iet-map.2017.0524

Subject(s) - checkerboard , optics , antenna (radio) , high gain antenna , antenna gain , tunable metamaterials , physics , antenna measurement , acoustics , computer science , telecommunications , antenna factor , mathematics , geometry , metamaterial

In‐band and out‐of‐band radar cross‐section reduction (RCSR) as well as gain enhancement for a slot antenna array is presented. The checkerboard surface (CS), combining an electromagnetic band gap structure and a metallic grounded slab, is adopted to realise a wideband RCSR. The analysis indicates a 10 dB RCSR of the CS compared with the perfect electric conductor surface can be achieved over 60% frequency bandwidth. Then, the designed CS is placed on the top surface of the 2 × 2 slot antenna array, and the measured results reveal that the proposed slot array possesses in‐band and out‐of‐band RCSR from 5 to >12 GHz for both co‐ and cross‐polarisations. Apart from the wideband RCSR, the gain enhancement is about 2.1 dB compared with the slot antenna array without the CS.

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