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Analysis of a grating metal structure with broad back-scattering field pattern for applications in vehicle collision avoidance system

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3 Author(s)
Young-Huang Chou ; Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Shew-Jon Lin ; Shyh-Jong Chung

In this paper, grating metal structures with broad and flat back-scattering field patterns are studied for possible applications in a vehicle collision avoidance system. The two-dimensional TE scattering of a planar grating structure and a curved grating structure are analyzed at a frequency of 77 GHz. For the planar structure, the method of moments and Floquet's theorem are used to solve the induced current and the resultant back-scattering field. Based on the results of the planar structure, the scattering field of the curved grating structure is obtained by using a perturbation method. The influence on the field pattern of the curvature as well as other structure parameters, such as the width and geometry of each period in the grating structure, is investigated

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Vehicular Technology, IEEE Transactions on  (Volume:51 ,  Issue: 1 )