Abstract
An efficient method of solution for problem of wave diffraction by a set of perfectly conducting flat strips is presented, where both E- and H-polarizations are treated. By using a spectral approach, the problem is reduced to a system of linear algebraic equations for the unknown Fourier coefficients of the current density function. A truncation of the infinite system of equations can yield the solution with any desired accuracy. Numerical results are presented for total cross sections of a single strip and strip resonators. By detailed examinations of the convergence in numerical computations, the criteria for truncation size are established. The limitation of this method on the strip width is also revealed.
