A printed loop antenna is designed to produce three distinct bands to cover six different frequency bands from UWB groups. Loop is fed using a printed BALUN transformer. The first band is available from 3.09 GHz to 4.44 GHz, the second band is available from 6.11 GHz to 7 GHz and the third band is available from 8.85 GHz to 10.5 GHz. The measured results are in good agreement with the simulated results. Frequency band from 3.0 GHz to 4.44 GHz covers UWB BAND-1 and BAND-2, the frequency band from 6.11 GHz to 7 GHz covers UWB BAND7 and the last band from 8.85 GHz to 10.5 GHz covers UWB BAND-12, BAND-13, and BAND-14. Antenna rejects IEEE 802.11 Wi-Fi / WLAN band at 5.8 GHz.