Method of Moments versus Advanced Transverse Wave Approach for EM Validation of Complex Microwave and RF Applications

Abstract

The art of benchmarking study has improved at an astonishing rate the scientific research in all areas but mainly in microwave engineering domain, and in particular, the field of microwave (MW) and radiofrequency (RF) integrated circuit design. Moreover, the fast simulation of complex MF/RF structures is considered a big challenge for the simulators, mainly in light of the continuous information and communication technology (ICT) development. In this context, the present paper sets out to present two important numerical electromagnetic (EM) methods, the method of moments (MOM) and our advanced transverse wave approach (A-TWA) for full-wave analysis of RF/MW structures. The computational complexity of these methods is evaluated. Two complex printed antennas working in the RF/MW range are selected and investigated. The EM problems that can be found in these circuits and that could not be solved analytically or by other numerical methods are discussed. The EM-validation of the studied structures using A-TWA and MOM is demonstrated and compared in the context of RF/MW applications. The obtained simulation results prove the efficiency and rapidity of our approach in comparison with the literature.

Electromagnetic Transverse Modes in Periodic Structures: Mathematical Analysis and Engineering Applications

“…The Method of Moments (MoM) [24][25] is highly efficient for solving problems that include structures with basic geometric forms, such as antennas and scatterers. This process converts Maxwell's equations from their original differential forms into integral forms by utilizing Green's functions.…”

“…This equation emphasizes the focus on transverse electric fields, simplifying calculations by isolating these components and reducing the effects of longitudinal field components. More details of this method can be found in [26][27][28][29][30][31][32].…”

New Measurement Technique for Complex Permittivity in Millimeter-Wave Band Using Simple Rectangular Waveguide Adapters

“…Specifically, the full-wave electromagnetic analysis is iteratively performed by optimizing the complex permittivity such that the calculated S-parameters (𝑆 ) are successfully curve-fitted to the measured S-parameters with the Gaussian weighting moving average filter (𝑆 ). In this study, the method of moment (MoM) [13,14] with a parallel-plate Green's function is employed to calculate the S-parameters [10]. It should be noted that MoM is highly suitable for the optimization-based approach because it is significantly faster than other full-wave electromagnetic analysis methods, such as the finite element method [15] or the finite-difference time-domain method [16][17][18][19][20].…”

On the Efficiency of the Advanced TWA Approach to the 60-GHz Microstrip Antenna Analysis for 5G Wireless Communication Systems

“…Numerical EM methods belong to the core of the mm-wave analysis of 5G planar structures such as the Method Of Moments (MOM) [26], or its alternative Fast Multipole Method (FMM) [27], and the full spectrum method named Partial Element Equivalent Circuit (PEEC) [28] for solving integral equations of EM waves. In the same vein, Finite Element Method (FEM) [29], Finite Difference Time Domain (FDTD) method [30], and Finite Integration Technique (FIT) [31] belong to differential equation solvers.…”