Circular Antenna Array for a Cell Sectoring Base Station

Abstract

In SDMA (Space division multiple access) mobile communication systems, cell sectoring of the coverage area is used to increase frequency spectrum efficiency. Each sector is served by either a separate antenna or switched-beam antenna array. The report deals with the construction of such arrays based on the reflective type beam-forming networks (RBFN). The requirements for the scattering matrix of the RBFN are formulated. For the arrays rational using of geometrical symmetry properties allowed to propose a convenient algorithm for synthesis and the structure design of RBFN.