New Stacked Patch Antenna for Polarisation and Radiation Pattern Diversity

This paper proposes a simple antenna array based on three stacked shorted patches aimed to be used as GSM (900 MHz) indoor base station antenna. Three same linearly polarized stacked patches are set in three orthogonal planes in space forming pyramid-like structure. The antenna array can be used for nearly omnidirectional coverage as well as for covering three 120&ordm ; sectors. The proposed array also offers the possibility of polarisation diversity.