Characterization of the koch fractal hexagonal loop frequency selective surface for X-band application

Nur Biha Binti Mohamed Nafis, Mohamad Kamal Bin A. Rahim, Osman Bin Ayop, Huda Bin A MAjid, Sunti Tuntrakool

Abstract


This paper presented the bandstop Koch fractal hexagonal loop frequency selective surface (FSS) for the X-band application. The simulated transmission coefficient response (S_21) had been obtained by using CST software. The proposed Koch fractal hexagonal loop FSS structure is highly insensitive towards angular stability and also incident polarization up to 60 degree , with deviation of resonant frequency,  f_r below than 1%. The parametric analysis on the effect of the periodicity, width, and height of the fractal FSS structure on the S_21 has been illustrated and discussed thoroughly.


Keywords


Fractal; Frequency selective surface; Hexagonal loop; Koch; X-band

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DOI: http://doi.org/10.11591/ijeecs.v20.i2.pp878-886

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Indonesian Journal of Electrical Engineering and Computer Science (IJEECS)
p-ISSN: 2502-4752, e-ISSN: 2502-4760
This journal is published by the Institute of Advanced Engineering and Science (IAES) in collaboration with Intelektual Pustaka Media Utama (IPMU).

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