Research On Electromagnetic Characteristics Of Electrically Large Conductor

In practical electromagnetic project, the analysis of antenna with electrically large conductor is a common problem. Our aim is to fast analyze under some numerical precision or to achieve better numerical precision under the use of the less computing resources. We refer to the method of moments (MoM) as a low-frequency technique. In high frequency range, it is significantly limited by computer storage, so its practical use is generally restricted to bodies that are not large in terms of the wavelength. On the other hand, uniform theory of diffraction (UTD) may be referred to as high frequency technique. It requires a known antenna radiation patterns when it solves antenna problems by regarding antenna as point sources. MoM combined with UTD is studied in this thesis. On the basis of a great deal theory analysis, a universal program is organized and some typical examples are computed numerically, the results of which are in good agreement with the software results. The accuracy and efficiency of this method is proved, which guarantees the more complex electrically large conductor can be analyzed by this method.