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Microstrip patch arrays are very popular for today's wireless communication system, especially when the signal propagates through different fading environment. It is very important today to design compact communication tool to fulfill multipurpose demand of communication world. In this paper, a double layered 2-element, patch antenna structure is proposed. A parametric study has been conducted to optimize the performances at different frequencies. This antenna array is applicable to Personal Communication System (PCS) and Wireless LAN. The EM-simulated return loss, radiation pattern, antenna efficiency and VSWR are presented for proposed antenna array.