Parameter Optimization of Frequency Selective Surfaces Made of Composite Materials

Autor:	Abdullah Oğuz Kizilçay
Rok vydání:	2021
Předmět:	frequency selective surface debye model composite material differential evolution algorithm Engineering Electrical and Electronic Materials science General Engineering Mühendislik Elektrik ve Elektronik Composite material Selective surface
Zdroj:	Volume: 25, Issue: 2 357-363 Sakarya University Journal of Science
ISSN:	2147-835X
DOI:	10.16984/saufenbilder.817605
Popis:	Debye model is used for approximating the frequency dependent complex effective permittivity of the composite structures in filter and shielding applications at microwave frequencies. In debye model, desired shielding effectiveness (SE) is obtained by determining the Debye parameters using trial and error method. But this may result in wasting time or not converging to an optimum solution. In this work to overcome this problem Debye parameters were optimized by using Differential Evolution (DE) algorithm. A Maxwell Garnett (MG) mixing rule was applied to these optimized parameters to obtain frequency selective surface (FSS) parameters. 12dB shielding threshold was chosen between 0.05 – 5GHz frequency range. In accordance with the obtained parameters of FSS, a structure was designed in CST simulation software and simulations had been conducted to obtain SE results. It was seen that the results obtained from analytical computations agree with those obtained from simulations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0fb11518162d858dca4f1100c48b0a4 https://doi.org/10.16984/saufenbilder.817605 Zobrazit plný text záznamu