Analysis of Photonic Band Gap using Multilayer Contribution of Wave Concept Iterative Process MLC-WCIP (original) (raw)
Related papers
A Novel Design of Photonic Band Gap by W.C.I.P. Method
Laboratoire de physique de la matière molle, Unité de recherche : Circuits et systèmes électroniques HF Faculté des Sciences de Tunis, Campus Universitaire Tunis EL-manar, 2092, Tunisie -Abstract-The study of the photonic one-dimensional structures gaps was approached by several methods of analysis such as the FDTD, the method of the flat waves. Our innovation in this study consists in using the iterative method based on the concept of wave FWCIP which establishes a relation of recurrence between the waves incidents and the waves reflected to see the electromagnetic behaviour of the dielectric one-dimensional structures And by calculating the coefficient of transmission and reflection, a comparison will be made at the level of these two coefficients with those found by means of the method of the FDTD.
Efficient electromagnetic modeling of microstrip structures in multilayer media
IEEE Transactions on Microwave Theory and Techniques, 1999
This paper presents an efficient method-of-moments solution of the mixed-potential integral equation for a general microstrip structure in multilayer media. In this method, the general forms of the spectral-domain Green's functions for multilayer media are derived first. The spatial-domain Green's functions are then obtained by the discrete complex-image method, which obviates the time-consuming numerical evaluation of the Sommerfeld integral. The Rao-Wilton-Glisson basis functions are employed to provide necessary flexibility to model arbitrary shapes. To expedite the computation of frequency response over a broad band, a reduced-order model is presented using asymptotic waveform evaluation. Numerical results of multilayer circuits and antennas are presented to show the efficiency and accuracy of this method.
Characterization of Microstrip Ring with a Narrow Gap by an Iterative Method
International Journal of Microwave Science and Technology, 2008
This paper presents an implementation of an iterative method based on the wave's concept, for analysing a ring resonator. This method includes a two-dimensional fourier modal transformation (2D-FMT) in a wave guide environment. The method has the advantage of simplicity in that it does not involve basis functions and inversion of matrices, as used in other calculation methods. Therefore, it is capable of analyzing larger bodies than other classical techniques. An implementation of the iterative calculation is shown for the extraction ofSparameters of microwave components. The good agreement between simulation results and experimental published data justifies the design procedure and validates the present analysis approach.
A novel design of photonic band gap by F.W.C.I.P method
2008
The study of the photonic one-dimensional structures gaps was approached by several methods of analysis such as the FDTD, the method of the flat waves. Our innovation in this study consists in using the iterative method based on the concept of wave FWCIP which establishes a relation of recurrence between the waves incidents and the waves reflected to see the electromagnetic behaviour of the dielectric one-dimensional structures And by calculating the coefficient of transmission and reflection, a comparison will be made at the level of these two coefficients with those found by means of the method of the FDTD.
Study and Conception of Dielectric Prohibited Band-Gap Structures by the FWCIP Method
Journal of Computer-Mediated Communication
Laboratoire de physique de la matière molle, Unité de recherche : Circuits et systèmes électroniques HF Faculté des Sciences de Tunis, Campus Universitaire Tunis EL-manar, 2092, Tunisie -Abstract-The study of the photonic one-dimensional structures gaps was approached by several methods of analysis such as the FDTD, the method of the flat waves. Our innovation in this study consists in using the iterative method based on the concept of wave FWCIP which establishes a relation of recurrence between the waves incidents and the waves reflected to see the electromagnetic behaviour of the dielectric one-dimensional structures And by calculating the coefficient of transmission and reflection, a comparison will be made at the level of these two coefficients with those found by means of the method of the FDTD.
2008 12th International Conference on Mathematical Methods in Electromagnetic Theory, 2008
The full-wave electrodynamical analysis of the open microwave discontinuities is performed by the space domain integral equation approach. This approach employs the dyadic Green's functions for a grounded multi-layer dielectric configuration and can be used on a single or multi-layer dielectric with or without superstrate. The method of moments is used for numerical solving the received equation. Elements of respective impedance matrix are calculated by combination of analytical and numerical integration. The characteristic network parameters of structure are determined on the know matrix elements.
An approximate parallel-plate waveguide model of a lossy multilayered microstrip line
Microwave and Optical Technology Letters, 2005
has been achieved. Slight discrepancies are due to mechanical tolerances of the fabricate prototype, which was built using mechanical etching . The total dimension of the filter is 35.0 mm, corresponding to 50% of the size of a conventional E-plane filter with same specifications. The upper 3-dB cutoff frequency is 9.49 GHz and more than 10-dB attenuation has been achieved at 9.5 GHz due to the finite transmission zero.
The spatial Green's function for a rectangular cavity partially filled with multiple layers of lossy dielectrics has been derived. The Green's function is used to compute the fields around a discontinuity in a transmission line. To analyze a discontinuity, the unknown surface current maintained on the microstrip discontinuity is expanded in terms of known suitable basis functions. The electric-field components in the plane of the discontinuity region are then written in terms of this current. Imposing the boundary condition that the component of the electric-field tangential to the metallization is zero yields the electric-field integral equation (EFIE). The method of moments is applied to the EFIE to obtain a system of linear equations. The resultant semianalytical expressions were used to conduct accurate modeling of a variety of structures. The validity and accuracy of this method are established through comparison with other published results. Convergence considerations are outlined and verified.
Full-wave iterative variational formulation for multiple coupled microstrip lines
IEEE Transactions on Magnetics, 1993
A new variational formulation in terms of two formally decouplctl potentials is derived for the full wave propagation constants of multiple coupled microstrip lines. At very low frequency limits, the present formulation is reduced directly t o the conventional quasistatic formulation. The quasistatic solutions are then employed as an initial guess to solve the high frequency solution for each coupled mode by a generalized Newton Raphson iterative scheme. Numerical results are presented for two and three coupled microstrip lines of identical or non-identical widths with various spacings and frequencies.