Analysis Of Conformal Antenna Electromagnetic Radiation By Volume-surface-wire Integral Equation

Conformal antennas and planar antennas have been extensively studied since their appearance.Compared with planar antennas,conformal antennas have the advantages of integrated with the structure.There are various analysis methods for the conformal antenna array.In this thesis,the volume-surface-wire Integral equation is used to analyze the electromagnetic radiation characteristics of the conformal antenna.The conformal antenna and the conformal antenna arrays are constructed with a cylindrical conformal carrier.In this thesis,the calculation results were consistent with the results of simulation software.In this thesis,the volume-surface-wire integral equation is built,and the moment method is used to solve it.The selected basis functions are triangular basis function,RWG(Rao,Wilton,Glisson)basis function,SWG(Schaubert,Wilton,Glisson)basis function and wire-surface connection point basis function.In this thesis,I use the moment method pre-processing algorithm to reduce the memory of computer,and use graph theory to represent the association between points,wires,areas,and bodies and its own adjacency.These logical relationships are expressed in a matrix which was compressed and stored to reduce memory overhead.This algorithm can solve the problem of memory overflow.When the moment method is used to solve the volume-surface-wire integral equation,the above four basis functions are used to derive the impedance matrix element and the right end excitation vector of the moment method in detail.In this thesis,I construct two-and four-element antenna arrays,and then use the moment method to solve the electric field integral equation of the antenna arrays,also modify the parameters such as the conformal carrier curvature and the array element spacing to analyze the electromagnetic radiation characteristics of the array.Finally,simulation software is used to verify the calculation example and verify the correctness of the algorithm in this thesis.This thesis uses the method of moment to analyze the electromagnetic radiation performance of the microstrip conformal antenna,and the method of moment is an effective method to analyze the electromagnetic characteristics of the antenna.