In this paper, RMPA in frequency and polarization is designed and diodes are proposed to be used as a switch to change the structure of the antenna. Thus by switching diodes ON and OFF the antenna is reconfigured to different frequencies with linear and Circular polarization. The use of circularly polarized antennas presents an attractive solution to achieve this Polarization match which allows for more flexibility in the angle between transmitting and receiving antennas. It reduces the effect of multipath reflections, enhances weather penetration and allows for any orientation to the communication system. The antenna is simulated at 2.4 GHz and 2.2 GHz using HFSS simulation software. The parameters of the antenna such as Reflection coefficient, VSWR, Bandwidth, Axial Ratio, the Radiation pattern is measured with and without diodes and results are analyzed using Network Analyzer. The main focus of this paper is to attain reconfigurability so that this microstrip patch antenna is used for Bluetooth, WLAN, WiMAX and Advanced Wireless Service(AWS) applications