Open Access

ARTICLE

Broadbanding of A-sandwich Radome Using Jerusalem Cross Frequency Selective Surface

Raveendranath U Nair¹, R M Jha¹

1 CSIR-National Aerospace Laboratories, Bangalore, 560017, India.

Computers, Materials & Continua 2013, 37(2), 109-121. https://doi.org/10.3970/cmc.2013.037.109

Abstract

Enhancement of electromagnetic performance of A-sandwich radome using aperture-type Jerusalem cross frequency selective surface (FSS) is presented. The Jerusalem cross FSS array is embedded in the mid-plane of the core of Asandwich radome to enhance the EM performance parameters over the entire Xband. For modeling the Jerusalem cross FSS embedded radome panel and evaluation of its EM performance parameters, equivalent transmission line method in conjunction with equivalent circuit model is used. A comparative study of Jerusalem cross FSS embedded A-sandwich radome and A-sandwich radome of identical material and thickness (core and skin layers) indicate that the new wall configuration has superior EM performance as compared to the A-sandwich wall alone configuration. The excellent EM performance of Jerusalem cross FSS embedded A-sandwich radome makes it a desirable choice for the design of normal incidence radomes (hemispherical/ cylindrical), near-normal incidence radomes (paraboloidal) and highly streamlined airborne nosecone radomes.

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Keywords

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