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The moment method (MoM) based on volume-surface integral equation (VSIE) combined with the adaptive integral method (AIM) is applied to analyze antenna array radiation in the presence of arbitrarily shaped radomes. The application of AIM reduces the computational complexity of MoM, which leads eclectically large-sized radomes with metal reflecting ground can be analyzed accurately and efficiently. Some radomes terminated by metal plane is presented and the effect of the metal plane on the radiation of antenna is analyzed. [ABSTRACT FROM AUTHOR]

An effective pre-conditioner for the method of moments (MoM) solution to the coupled volume-surface integral equation is presented to calculate electromagnetic scattering from conducting and dielectric targets. In this MoM solution to the integral equations, the target is discretized using triangular patches for conducting surfaces and tetrahedral cells for dielectric volume. Based on the characteristics of impedance matrix, an accurate method is used to improve the convergence speed when the iterative solver is employed. In comparison with other pre-conditioners, some numerical examples are also presented with high efficiency. [ABSTRACT FROM AUTHOR]