Fast Analysis and Design of Frequency Selective Surface Using the Gmresr-FFT Method

Abstract

Abstract-In this paper, frequency selective surfaces (FSSs) are analyzed and designed. The analytical procedure is based on method of moments (MoM). The generalized minimal residual recursive method combined with fast Fourier transform (GMRESR-FFT) is utilized to accelerate the solution of the matrix equation. Our numerical results show that the GMRESR-FFT method can converge at least 3 times faster than the generalized minimal residual fast Fourier transform method (GMRES-FFT). In this paper, the cross dipoles are first used to design the FSS filter with a passband at 300 GHz and a stopband at 450 GHz, and then the Jerusalem cross slots are utilized to avoid grating lobes and improve the bandwidth of FSS. Numerical results demonstrate the validity and efficiency of the presented method.

An FFT-Based Approach in Acceleration of Discrete Green's Function Method for Antenna Analysis

“…The acceleration of electromagnetic numerical simulations based on the fast Fourier transform (FFT) algorithm has been presented recently [13][14][15]. In this paper, we have shown that the DGF method can be combined with FFT algorithms to increase its performance in modeling of planar antennas.…”

Fast analysis of finite and curved frequency‐selective surfaces using the VSIE with MLFMA

“…A frequency‐selective surface (FSS) is typically made of dielectric substrates and conducting patches on or between the substrates 1–6. FSS structure has been intensively studied since the mid 1960s.…”

“…For example, the FSS on the radome of the antenna in an aircraft is curved and finite extent. Spectral domain method of moment (MoM) is a popular technique for the analysis of infinite periodic FSS array 5–6. However, this method does not apply when the FSS structures are of finite sized or curve shaped.…”

A Tdie/Tdpo Hybrid Method for the Analysis of Tm Transient Scattering From Two-Dimensional Combinative Conducting Cylinders

“…Integral equation (IE) is widely used for the numerical analysis of electromagnetic radiation and scattering [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Especially the time domain integral equation (TDIE) has been receiving much interest in studying many practical transient electromagnetic problems [15][16][17][18][19].…”