A 60GHz band 3-D phased array antenna module using 3-D system-in-package (SiP) structure is proposed and designed. Two separated 2×2 end-fire dipole array antennas on different (z-y and z-x) planes are configured in a multi-stacked substrate module. For x-direction, z-y plane array antenna is used and for y-direction, z-x plane array antenna is used. In order to achieve higher antenna gain at intermediate region between x and y directions, hetero-plane beam synthesis using the two separated array antennas is proposed. The simulated result shows 10 dBi beam coverage area of 150° in azimuth and 60° in elevation.