Scattering analysis of curved FSS using Floquet harmonics and asymptotic waveform evaluation technique

Yi Ru Jeong, Ic Pyo Hong, Heoung Jae Chun, Yong Bae Park, Youn Jae Kim, Jong Gwan Yook

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this paper, we present the scattering characteristics of infinite and finite array using method of moment (MoM) with Floquet harmonics and asymptotic waveform evaluation (AWE) technique. First, infinite cylindrical dipole array is analyzed using the MoM with entire domain basis function and cylindrical Floquet harmonics. To provide the validity of results, we fabricated the cylindrical dipole array and measured the transmission characteristics. The results show good agreements. Second, we analyzed the scattering characteristics of finite array. A large simulation time is needed to obtain the scattering characteristics of finite array over wide frequency range because Floquet harmonics can't be applied. So, we used the MoM with AWE technique using Taylor series and Pade approximation to overcome the shortcomings of conventional MoM. We calculated the radar cross section (RCS) as scattering characteristics using the proposed method in this paper and the conventional MoM for finite planar slot array, finite spherical slot array, and finite cylindrical dipole array, respectively. The compared results agree well and show that the proposed method in this paper is good for electromagnetic analysis of finite FSS.

Original languageEnglish
Pages (from-to)561-572
Number of pages12
JournalSteel and Composite Structures
Volume17
Issue number5
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes

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Keywords

  • Asymptotic waveform evaluation (AWE) technique
  • Cylindrical Floquet harmonics
  • Finite and curved array
  • Frequency selective surface
  • RCS
  • Transmission

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Metals and Alloys

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