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Design of broadband absorptive optimum frequency selective rasorber without loaded circuit elements      
Yazarlar
Öğr. Gör. Dr. Mustafa ÖZDİN Öğr. Gör. Dr. Mustafa ÖZDİN
Kastamonu Üniversitesi, Türkiye
Salim Orak
Sağlık Bilimleri Üniversitesi, Türkiye
Dr. Öğr. Üyesi Faruk ERKEN Dr. Öğr. Üyesi Faruk ERKEN
Kastamonu Üniversitesi, Türkiye
Özet
In this work, unlike conventional ones, an optimum rasorber was designed which does not require circuit elements loaded by soldering. With high physical protection and wide absorption band, this proposed rasorber is suitable for stealthy antenna radomes. This structure is easy to manufacture as the absorption and frequency selectivity are achieved only by resistive and conductive square patch elements integrated into the dielectric layers. Firstly, using computer simulation results, predetermined value sets of equivalent circuit elements of the impedance of a frequency selective surface (FSS) are obtained depending on the dimensions in a unit cell. Then, the reflection and transmission coefficients of the whole structure are expressed as the functions of all variables in the rasorber. The transmission coefficient calculation is carried out with a newly introduced formulation. The optimum values of the variables are determined by using multi-objective optimization. A broadband rasorber prototype containing three resistive FSS and a conductive FSS is manufactured and the test results are shown quantitatively. The designed structure transmits 4.2 GHz operating frequency with slight attenuation and it provides reflection less than −10 dB in the 8–23.4 GHz band and less than −15 dB in the 8.6–21.4 GHz band.
Anahtar Kelimeler
Absorber radome | Frequency-selective rasorber (FSR)
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı AEU - International Journal of Electronics and Communications
Dergi ISSN 1434-8411
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 12-2020
Cilt No 127
Sayı 1
Sayfalar 153407 / 0
Doi Numarası 10.1016/j.aeue.2020.153407
Makale Linki https://linkinghub.elsevier.com/retrieve/pii/S1434841120311262