Some Properties of One Dimensional Array of Isotropic Sensors

Sensor array processing is field of research devoted to the study of proper and mutual parameters of sensors such as the shapes of each antenna, the frequency bands, the interferences between radiation patterns and the geometrical arrangement of the array, all these parameters have an impact on the transmission and reception characteristics of the array. The far field angular beam scan using array of antennas relies on the geometrical description of the elements, where the visible region in polar or spherical coordinates depends on either one dimensional or two dimensional geometries. In this paper, we discuss some properties of one dimension uniform array of isotropic sensors, we present a detailed description of planar and conical ambiguities using wave vector projection. Next we present a particular type of broadside uniform array where we evaluate the half power beam width using the condition of non uniform input current distribution of antennas, this study is accomplished by numerical evaluation.