Techno Press


Steel and Composite Structures   Volume 17, Number 5, November 2014, pages 561-572
DOI: http://dx.doi.org/10.12989/scs.2014.17.5.561
 
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 and Jong-Gwan Yook

 
Abstract     [Full Text]
    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 cant 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.
 
Key Words
    frequency selective surface; finite and curved array; cylindrical Floquet harmonics; asymptotic waveform evaluation (AWE) technique; RCS; transmission
 
Address
(1) Yi-Ru Jeong, Jong-Gwan Yook:
School of Electrical and Electronics Engineering, Yonsei University, Seoul, Korea;
(2) Ic-Pyo Hong:
Department of Information and Communication Engineering, Kongju National University, Cheonan, Korea;
(3) Heoung-Jae Chun:
School of Mechanical Engineering, Yonsei University, Seoul, Korea;
(4) Yong Bae Park:
Department of Electrical and Computer Engineering, Ajou University, Suwon, Korea;
(5) Youn-Jae Kim:
Agency for Defense and Development, Daejon, Korea.
 

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