The Accurary Analysis And Optimization Of A MOM-PO Hybrid Method

The study of electromagnetic scattering and electromagnetic compatibility of wire antennas mounted on electronic large complitated platform is a mostly challenging research topic both in theroy and engineering.In this paper,the accuracy of radiation property of wire antennas which is in different minor lobe level on electronic large complitated platform is analyzed in the method of the hybird thought of two important computing electrimagnetic methods,which are the Method of Moment and Physics Optics,and the numerical result is presented.In this paper, firstly,a kind of Method of Moment is presented which can be used to analyze several wire antennas attached to a complex platform,whose numerical computation results absolutely agree with the result using commercial software without the change of minor lobe of the wire antennas and stucture of the conductor,which proves that the method is reliable.Secondly,a hybrid thought of the Method of Moment and Physics Optics method of modifing voltage matrix is deeply studied,and a great lot of results of numerical computation prove the method is valid, which is faster than commerical software.However,the accuracy of this method is affected by the distance of the MOM region and PO region,the level of wire antennas and the number of the lobe,the iterative number.The research in this paper proves MOM-PO method correct and valid,which is valuable to the research of low minor antennas on the complex large platform.