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A 48 mm×60 mm×1 mm miniaturized multi-band antenna based on deformed split ring resonators was presented.The antenna was consisted of a micro-strip line and a deformed split square ring.Its/S11/parameters were determined through numerical simulation and experimental measurement within three working bands of 2.6 GHz to 3.0 GHz,3.9 GHz to 4.4 GHz and 5.2 GHz to 5.8 GHz and the results showed that the parameters within all the bands were less than-10 dB.The gain at every frequency for the antenna was above 2.2 dB and it increased monotonously with the frequency from 5.5 GHz to 7.0 GHz.