Application of Metallic Strip Gratings for Enhancement of Electromagnetic Performance of A-sandwich Radome

Defence Science Journal

J. Madhumitha¹  R. M. Jha¹  Raveendranath U. Nair¹ 

[1] National Aerospace Laboratories, Bengaluru

关键词: Radomes;    metallic strip gratings;    radome performance parameters;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

Enhancement of the electromagnetic (EM) performance characteristics of A-sandwich radome wall over X-band using metallic strip gratings is presented in this work. Equivalent transmission line method in conjunction with equivalent circuit model (ECM) is used for modeling the A-sandwich radome panel with metallic strip gratings and the computation of radome performance parameters. Metallic strip grating embedded in the mid-plane of the core and those in the skin-core interface are the configurations considered in the present work. For a given thickness of metallic strip grating, its width and pitch are optimized at different angles of incidence such that the new radome wall configuration offers superior EM performance over the entire X-band as compared to the conventional A-sandwich wall. The EM analysis shows that the superior EM performance of A-sandwich with metallic strip gratings makes it suitable for the design of normal incidence and streamlined airborne radomes. Defence Science Journal, 2013, 63(5), pp.508-514 , DOI:http://dx.doi.org/10.14429/dsj.63.2458

【 授权许可】

Unknown