Implementation of Various Array Geometreis in Smart Antenna

Space division multiple access (SDMA) is a promising candidate for improving channel capacity in future wireless communication systems. Since the discrimination performance of the user in the spatial domain depends on the array arrangement, an optimum element arrangement for SDMA should be defined. The pattern of antenna array is determined by array geometry. Two-dimensional spatial filters that can be implemented by microstrip technology are capable of filtering the received signal in the angular domain as well as the frequency domain. This paper focuses on various geometry of eight and nine elements antenna array using circularly patch elements