B. Sangeetha, Gitansh Gulati, R. U. Nair, S. Narayan
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Design of airborne radome using Swastika-shaped metamaterial-element based FSS
This paper presents a novel Swastika-shaped metamaterial structure which exhibits metamaterial behavior (μ- and ε-negative) in distinct frequency ranges. The EM analysis of metamaterial (MTM) structure is carried out using transmission line transfer matrix method and validated with full-wave method based software package. The proposed structure is observed to exhibit bandpass frequency selective characteristics with very good transmission efficiency in the frequency range of 8.5 GHz–10.3 GHz. Further, a planar multilayered radome wall configuration is designed which consists of a thick Arlon layer embedded with Swastika-shaped MTM FSS as the middle layer backed by two thin quartz-based laminations on each side. Further, the thickness of radome wall is optimized sector wise in view of airborne radome applications.
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