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In this paper, using the Broadband Green's function with low wavenumber extraction (BBGFL) method, we develop the broadband Green's function for an arbitrary-shaped waveguide with two different dielectrics inside. We use the modes of an arbitrary-shaped waveguide to compute the broadband response of an arbitrary-shaped waveguide using the BBGFL method. In addition, we further apply the higher order...
Recently, we have developed the method of broadband Green's function with low wavenumber extraction (BBGFL) to investigate the problem of arbitrary shaped waveguides [1]. In the past, the Boundary Integral-the Resonant Mode Expansion (BIRME) [2, 3] method was applied to calculate the modes of an arbitrary shaped waveguide with a homogenous dielectric. In BIRME, a DC extraction is applied to remove...
A novel approach of broadband Green's function with low wavenumber extraction (BBGFL)has recently been developed to calculate the band diagrams of two dimensional (2D) periodic structures using surface integral equations [1–3]. The surface integral equation takes the periodic Green's function as the propagator, provides the exact multiple scattering solution to the problem. A low wavenumber component...
We applied the BroadBand Green's Function with Low wavenumber extraction (BBGFL) to calculate band diagrams of periodic structures with non-circular dielectric scatterers. A low wavenumber component is subtracted out from the periodic Green's function to obtain the broadband periodic Green's function with fast convergence. The broadband Green's functions of both the background and the scatterer are...
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