A hybrid formulation is presented, which combines the method of moments (MOM) with the edge-based vector finite element method (FEM) to solve electromagnetic radiation problems from structures consisting of an inhomogeneous dielectric body of arbitrary shape attached to one or more perfectly conducting bodies. While either method alone fails to model these structures efficiently, a combination of both finite element and moment methods provides an excellent way to solve these problems. The FEM is employed to handle the interior domain of inhomogeneous dielectric bodies and the method of moments is used to develop surface integrals that relate the field quantities on boundary surfaces with the equivalent surface currents. These integral equations are then coupled to the finite element equations through the continuity of the tangential magnetic fields across the hybrid boundaries


Electrical and Computer Engineering

Keywords and Phrases

300 MHz; Antenna Theory; Attached Wires; Boundary Surfaces; Dielectric Objects; Edge-Based Vector Finite Element Method; Electromagnetic Radiation Problems; Electromagnetic Scattering; Electromagnetic Wave Scattering; Equivalent Surface Currents; Field Quantities; Finite Element Analysis; Hybrid FEM/MOM Technique; Hybrid Formulation; Inhomogeneous Dielectric Body; Integral Equations; Interior Domain; Method of Moments; Perfectly Conducting Bodies; Radiation; Radiofrequency Interference; Surface Integrals; Tangential Magnetic Fields

International Standard Serial Number (ISSN)


Document Type

Article - Journal

Document Version

Final Version

File Type





© 1997 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.