A reconfigurable beam dual polarized microstrip cross patch antenna

This paper presents the conception of a reconfigurable beam antenna with horizontal or vertical polarization for millimeter-wave multi-beam small cells array purposes for 5G systems. This new structure consists of one driven cross patch surrounded by four parasitic elements. In each parasitic element one shorting switch is used to change the beam direction. The parasitic elements can be considered either reflector or director. Specifically, a new method of the feeding microstrip antenna consists in connecting two coaxial probes alternate ON or OFF in one driven element. By combining the states of the four shorting switches with the probe feeding, three beam patterns can be obtained in each orthogonal plane with 3dB-beamwidth of 178° at frequency 10GHz. The simulated and measured results of S parameter and radiation patterns are presented.