Abstract
This paper proposes the formulation of a sinusoidal basis function with a novel segmented edge condition to model the impulsive behavior of the surface electric current density at the edges of rectangular microstrip scatterers. In comparison to traditional basis functions, the one considered in this approach demands using very few modes to expand the induced current. The effectiveness of the proposed formulation is validated using the commercial electromagnetic simulator Ansys Designer. Good agreement between the results obtained with the proposed formulation and with the commercial software has been obtained.
Highlights
The interest on printed structures has increased due to the evolution of electromagnetic and mechanical properties of dielectric laminates
The electromagnetic analysis of printed structures can be realized using academic codes or commercial software, such as Ansys Designer, HFSS, FEKO and CST [1]–[3]. These solutions are based on numerical techniques, such as the method of moments (MoM), finite element method (FEM), finite integration technique (FIT) and finite-difference time-domain (FDTD) [4]–[6]
To verify the performance of the proposed basis function, we consider the incidence of a plane wave operating at 2.4 GHz
Summary
The interest on printed structures has increased due to the evolution of electromagnetic and mechanical properties of dielectric laminates. The electromagnetic analysis of printed structures can be realized using academic codes or commercial software, such as Ansys Designer, HFSS, FEKO and CST [1]–[3] These solutions are based on numerical techniques, such as the method of moments (MoM), finite element method (FEM), finite integration technique (FIT) and finite-difference time-domain (FDTD) [4]–[6]. For designs composed of rectangular printed elements, specific entire-domain basis functions have been applied to reduce the total number of functions needed to model the impulsive behavior of the induced electrical current density at the edges of the scatterers. We propose an entire-domain basis function with segmented edge condition to model the surface current density of rectangular patches with variable sizes, and, to determine the amplitude and phase curves of the element using very few expansion modes.
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