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A Conjugate Gradient FFT Method for Wire Structure

In order to improve the efficiency of the computation of complex wire structure, combined with moment method (MoM), a conjugate gradient FFT method (CG-FFT) is developed to solve the integral equation. Compared with the results computed by NEC, the validity of this method is verified. Using this method, the shielding effectiveness (SE) of wire structure is computed and the factors affect the SE are analyzed.