An Efficient Compact 2-D WLP-FDTD Method for Plastic Rectangular Waveguides

An efficient compact two-dimensional (2-D) finite-difference time-domain method with weighted Laguerre polynomials (WLP-FDTD) for plastic rectangular waveguides is proposed. A typical plastic rectangular waveguide is simulated by both the 2-D WLP-FDTD method and the conventional 2-D FDTD method. Since the compact 2-D WLP-FDTD method is without the restriction of the Courant-Friedrichs-Lewy (CFL) condition, it is more efficient than the 2-D FDTD method.