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A new method of moments (MoM) is presented to analyze variable thick wire structure (VTWS) antennas. For the symmetric property of VTWS the antenna can be modeled with rings, and the electric flux density on it can be expanded with sinusoidal interpolation basis function. Utilizing exact thick kernel together the VTWS antenna can be analyzed by MoM with much less time than other full wave methods. To verify the validity of this technique, a conical antenna is analyzed and fabricated. The good results show the efficiency and accuracy of the method presented. A more complicated VTWS antenna composed of cylindrical discal and curvilinear tapered sections is also carried out to verify the general adaption of the method. [ABSTRACT FROM AUTHOR]

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]