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Research on the Algorithm of Curve RWG Basis Function Applied to Adaptively Modified Characteristic Basis Function Method

Author: XuYang
Tutor: GuChangQing
School: Nanjing University of Aeronautics and Astronautics
Course: Electromagnetic Field and Microwave Technology
Keywords: Electromagnetic Scattering Integral equation Method of Moments Surface RWG Basis Functions Singularity Adaptive modified characteristic basis function method
CLC: O441.4
Type: Master's thesis
Year: 2009
Downloads: 37
Quote: 0
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Abstract


How fast and accurate analysis of the electromagnetic properties of the three-dimensional complex target , for a long time has been to calculate the electromagnetic field of research focus . Efficient solving of complex target electromagnetic scattering contains two meanings . First, under conditions of limited computer resources to achieve the accurate modeling and calculation of the characteristics of the target scattering calculations should be consistent with the measured values ??with high precision ; Second, in the above premise , to achieve a more rapid analysis calculations. So , look for a strict , efficient and accurate means of analysis has become the focus of the research goals of the scattering . This article first systematic exposition of the basic principles as the foundation of the entire research - PEC arbitrary target the body electric field integral equation ( EFIE ) , the magnetic field integral equation (MFIE) and the establishment of the mixed integral equation (CFIE) moments method , the basis functions trial function select plane basis function singularity approach . Then, detailed surface RWG basis function method for solving electromagnetic field integral equation : curved triangular geometric modeling and surface RWG basis functions . Electric field integral equation , the discrete surfaces RWG basis function of the magnetic field integral equation singularity approach . Electromagnetic scattering problems for three-dimensional conductive targets , using curved triangular elements to simulate the scattering surface , the combination of curved RWG basis function analysis, numerical numerical example a curved base function compared to the plane of basis functions under the premise of ensuring the accuracy can reduce a large number of unknown save memory and computing time . Finally , on the basis of the above study , the curved base function is applied to the adaptive characteristic basis function method , a new kind of the CRWG-AMCBFM algorithm . This paper discusses the computational efficiency of the algorithm and the complex structure of three-dimensional conductive electromagnetic scattering analysis using the algorithm , better calculated to verify the correctness of the algorithm and procedures as well as to save computation time and memory significant advantage .

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CLC: > Mathematical sciences and chemical > Physics > Electromagnetics,electrodynamics > Electricity and Magnetism > Electromagnetic waves and electromagnetic fields
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