Hybrid FEM/SBR method to compute the radiation pattern from a microstrip patch antenna in a complex geometry

Abstract

KEY TERMS

Hybridization of SBR and MOM for Scattering by Large Bodies with Inhomogeneous Protrusions

“…which is similar to (6). Since E z and J z have already been computed, the integrals in (15) can be readily evaluated.…”

“…A successful example is given in [5] and [6] where the shooting-and-bouncingray (SBR) method is combined with the finite-element method (FEM) to solve for the scattering and radiation by a large body with cracks and cavities on its surface. The resulting hybrid technique can produce sufficient accuracy and can be implemented in a general-purpose computer code.…”

Hybridization of SBR and MOM for Scattering by Large Bodies with Inhomogeneous Protrusions

“…which is similar to (6). Since E z and J z have already been computed, the integrals in (15) can be readily evaluated.…”

“…A successful example is given in [5] and [6] where the shooting-and-bouncingray (SBR) method is combined with the finite-element method (FEM) to solve for the scattering and radiation by a large body with cracks and cavities on its surface. The resulting hybrid technique can produce sufficient accuracy and can be implemented in a general-purpose computer code.…”

Radar Cross-Section of a Parallel-Fed Cylindrical Array of Dipoles

“……”

Fast Hybrid Fem/Cre-Utd Method to Compute the Radiation Pattern of Antennas on Large Carriers

“…High-frequency techniques including geometrical theory of diffraction (GTD) [4], physical theory of diffraction (PTD) [5], and uniform theory of diffraction (UTD) [6] have obvious advantages in computing speed and memory demands, but the low computing precision limits their application. Then it is necessary to combine the low-and highfrequency techniques to form hybrid methods [7][8][9][10][11][12][13][14][15][16][17][18] for analyzing the radiation fields of antenna on large carrier.…”

Hybridization of SBR and MOM for Scattering by Large Bodies with Inhomogeneous Protrusions

“…which is similar to (6). Since E z and J z have already been computed, the integrals in (15) can be readily evaluated.…”

“…A successful example is given in [5] and [6] where the shooting-and-bouncingray (SBR) method is combined with the finite-element method (FEM) to solve for the scattering and radiation by a large body with cracks and cavities on its surface. The resulting hybrid technique can produce sufficient accuracy and can be implemented in a general-purpose computer code.…”

Radar Cross-Section of a Parallel-Fed Cylindrical Array of Dipoles

“……”

Fast Hybrid Fem/Cre-Utd Method to Compute the Radiation Pattern of Antennas on Large Carriers

“…High-frequency techniques including geometrical theory of diffraction (GTD) [4], physical theory of diffraction (PTD) [5], and uniform theory of diffraction (UTD) [6] have obvious advantages in computing speed and memory demands, but the low computing precision limits their application. Then it is necessary to combine the low-and highfrequency techniques to form hybrid methods [7][8][9][10][11][12][13][14][15][16][17][18] for analyzing the radiation fields of antenna on large carrier.…”

Hybridization of SBR and MOM for Scattering by Large Bodies with Inhomogeneous Protrusions

“…which is similar to (6). Since E z and J z have already been computed, the integrals in (15) can be readily evaluated.…”

“…A successful example is given in [5] and [6] where the shooting-and-bouncingray (SBR) method is combined with the finite-element method (FEM) to solve for the scattering and radiation by a large body with cracks and cavities on its surface. The resulting hybrid technique can produce sufficient accuracy and can be implemented in a general-purpose computer code.…”

Radar Cross-Section of a Parallel-Fed Cylindrical Array of Dipoles

“……”

Fast Hybrid Fem/Cre-Utd Method to Compute the Radiation Pattern of Antennas on Large Carriers

“…High-frequency techniques including geometrical theory of diffraction (GTD) [4], physical theory of diffraction (PTD) [5], and uniform theory of diffraction (UTD) [6] have obvious advantages in computing speed and memory demands, but the low computing precision limits their application. Then it is necessary to combine the low-and highfrequency techniques to form hybrid methods [7][8][9][10][11][12][13][14][15][16][17][18] for analyzing the radiation fields of antenna on large carrier.…”