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In this tutorial, a compact, planar ultrawideband (UWB)monopole microstrip antenna is proposed which offers dual band notchcharacteristics with enhanced rejection at frequency bands centered at3.4 GHz and 5.5 GHz. To realize enhanced band notched characteristicsat 3.4 GHz, a pair of ﬁlters is incorporated which includes an inverted'L' shaped slot and a twisted 'J' shaped slot in the patch element.Another pair of ﬁlters comprises of a spur line ﬁlter in the feed lineand 'U' shaped slot in the patch are used to get a strong frequencyband rejection centered at 5.5 GHz. Step by step development of the antenna with its analysis in frequency and time domain is presented.