In this paper the uniform circular array (UCA) of triangular patch antennas for generating the orbital angular momentum (OAM) beam is presented. The 8-element microstrip triangular patch UCA is designed to work at the 5.45 GHz which generates the OAM beam of mode l=-1. The sidelobe levels of microstrip triangular patch antenna are considerably lower than the other patch shapes and hence it is used in uniform circular phased array for the generation of OAM beam.