More Efficiency of Transverse Wave Approach (Twa) by Applying Anisotropic Mesh Technique (Amt) for Full-Wave Analysis of Microwave Planar Structures

Abstract

Abstract-The present paper sets out to present a numerical electromagnetic (EM) method TWA for EM field modeling of planar structures. Combining both the benefits of TWA process and the modeling of planar excitation source, an optimization technique AMT is applied and evaluated in context of RF integrated-circuit applications. The computational complexity of TWA process is examined and the obtained simulation results are found to be in good agreement with literature. Index Terms-Transverse wave approach (TWA), anisotropic mesh technique (AMT), computational complexity, planar structures 384Ayari, Aguili, and Baudrand

New Version of Twa Using Two-Dimensional Non-Uniform Fast Fourier Mode Transform (2d-Nuffmt) for Full-Wave Investigation of Microwave Integrated Circuits

“…Based on the results obtained in the previous section, we can deduce that the presence of FFT and IFFT in, respectively, 2D-NUFFT and its inverse allows us to straightforwardly apply the FMT and IFMT (already developed in [1]) respectively.…”

“…The good analysis of the numerical EM method TWA developed by our group allows us to determine not only their strong points as already mentioned in previous works [1,2] but also their shortcomings. The weakness of TWA can be observed at an EM simulation with high precision, namely, the total number of pixels N T exceeds 2 18 cells (N T = M x × N y = 512 × 512, 1024 × 1024, .…”

“…This work will be, also, buttressed by an application belonging to wireless systems already investigated in [1] in order to show the efficiency of this advanced TWA method; moreover, the simulation time with this advanced method can be more improved by applying the AMT technique onto any considered analysis structure.…”

“…The expansion of these transforms (i.e., the forward transform and its inverse) show that FMT (Fourier Mode Transform) and its inverse IFMT already computed [1] can be associated directly to respectively 2D-NUFFT and 2D-INUFFT to form the new transformations assuring the novel pixel-mode transform and vice versa so-called two dimensional NonUniform Fast Fourier Mode Transform 2D-NUFFMT and its inverse 2D-INUFFMT which constitutes the fundamental base of the advanced TWA process.…”

New Formulation of the Iterative Method: Application to a Microwaves Attenuator

“…The iterative method was developed in various theses and multiple articles [5][6][7][8], it is based on two types of waves, incidental (A k ) and reflected (B k ), respectively expressed in the space and modal fields, by the relations (6) and (7). The passage of these waves from one field to another is ensured by the iterative process using the fast modal transform (FMT), which is not other than the FFT balanced on each mode.…”