Implementation Of Pre/Post-Processing Of Method Of Moments

Generally, estalishing geometric model, meshing, getting common edge or common faceinformation together are called pre-procedure of method of moments. Next, the informationobtained by pre-procedure can genetate a matrix equation, and then slove the matrix equation.This process is called core compute of the method of moments. Finally, use current coefficientobtained from core compute part calulates the target surface current, near field, far field. If theanalysis of the radiation characteristics of the antenna can also calulate some parameters aboutantenna, such as input imperdance, mutual impedance, radiation pattern, directivity coefficient.The work in this part is called post-procedure of method of moments.Firstly, this thesis introduces the mathematical principles of the method of momentsandimplementation process of electric field integral equation method of moment, and then gives moredetailed description about some commonly used modeling software and data file format exportedfrom the software, gives several modeling methods commonly used in computationalelectromagnetics, describes process methods of the data file exported from commonly usedmeshing software and fast algorithm about calculating common side and the common face,generates the more generic pre-procedure module. In the post-procedure module, it derives theformula of computing near and far field strength, decribes the methods of the conductor surfacecurrent three-dimensional visualization, calculation method of the basic parameters of the antennaand the results visualization. Finally, several instances prove the correctness of the methods andprogram.