In this paper a truncated rectangular patch microstrip antenna with multiple slots has been proposed, to provide a wide impedance bandwidth, in addition to acceptable antenna performance parameters such as (gain and radiation pattern). FR-4 substrate is used to design the antenna structure, the substrate has thickness of 1.6 mm and relative permittivity of 4.3. By utilizing CST Microwave Studio Simulation softwer, the simulation procedure has been done. This antenna covers broadband from (0.94GHz to 3.4GHz), therefor it is suitable for operation in telecommunication base stations, and the antenna covers the GSM900, GSM1800, GSM1900, and IMT applications.