This study presents a full‐wave solution for arrays of cylindrical‐rectangular microstrip antennas, with superstrate. It uses the method of moments (MoM), with full‐domain basis functions. The same set of functions is used as testing‐functions resulting in a Galerkin procedure. A numerical procedure is presented allowing an efficient and numerically stable evaluation of the elements of the MoM linear system. Results for input impedance are compared to those using HFSS for a flush‐mounted geometry. Results for radiation pattern, mutual impedance, and coupling coefficient S12 are also presented. And the effects of the superstrate on those parameters are evaluated.

Pyrimidines and their derivatives are present in various biologically active molecules. Most of the synthetic methods employed to achieve the pyrimidinone ring consist of two stages: the synthesis of a Michael intermediate from an aldehyde and an "active methylene" containing compound; and the condensation of this intermediate with a molecule containing an uranium moiety. This may take one to two days of laboratory work. In this paper we describe a new methodology in which these derivatives are obtained via multicomponent synthesis mediated by ultrasound in only 2 hours. In order to obtain water-soluble pyrimidinone derivatives, our previous compounds were further converted into their sodium salts. In pharmacologic studies, these salts inhibited phenylephrineinduced contraction in isolated rat aorta, suggesting that they may act as alpha-1 antagonists and, therefore, are candidates for anti-hypertensive drugs.