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In this paper, a dual band planar dual circular ring monopole antenna is designed and fabricated on 1.6mm thick FR4 substrate. The measured bandwidth of the antenna is from 0.82–1.25 GHz and 1.65–2.79 GHz for return loss < −10dB. This antenna finds its application in CDMA, GSM900, GSM1800, 3G, 4G and Wi-Fi bands. A uniform omnidirectional radiation pattern is also obtained over the entire bandwidth. The maximum gain of the designed antenna is 3.7dBi.