H El-tamaly, HassanM Eltayeb, MaherAbd El, Deena Hamid SalemMahmoud, KR2020-02-172020-02-172013[1] First Report and order, "Revision of part 15 of the commission's Rule Regarding Ultra-Wideband Transmission System FCC 02-48", Federal Communication Commission, 2002. [2] Trang Dang Nguyen, Dong Hyun Lee, and Hyun Chang Park, "Design and Analysis of Compact Printed Triple Band- Notched UWB Antenna", IEEE antennas and wireless propagation letters, vol.10, 2011. [3] H. Chen, Y. Ding, and D. S. Cai, "A CPW-Fed UWB Antenna with WIMAX/WLANB and-Notched characteristics", Progress in Electromagnetics Research Letters, Vol. 25, 163-173, 2011. [4] Joon-Won Jang and Hee-Yong Hwang, "An improved band-rejection UWB Antenna With Resonant patches and a slot", IEEE antennas and wireless propagation letters, vol.8, 2009. [5] Xue-jie Liao, Hong-chun Yangand Na Han," An improved dual band-notched UWB antenna with a parasitic strip and a defected ground plane", International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2010) December 6-8, 2010. [6] D.Rajesh, P.K.Sahu and S.K.Behera "A compact UWB parasitic microstrip antenna with band dispensation", IEEE International Conference on Computer and Communication Technology (ICCCT), 2011. [7] Adel B. Abdel-Rahman, Adel Z. El Dein, H.H.EL Tamaly, M. A. Mostafa," Design of UWB printed monopole antenna with dual band notch filter", 2010-IEEE APS, Middle East conference on Antenna and Propagation(MECAP),Cairo,Egypt,2010. [8] M. Zhang, Y.-Z. Yin, J. Ma, Y. Wang, and W. C. Xiao. "A racket-shaped slot UWB antenna coupled with parasitic strips for band-notched application", Progress In Electromagnetics research Letters, Vol.16, 35-44, 2010. [9] Young JunCho, Ki Hak Kim, Dong Hyuk Choi, Seung Sik Lee, and Seong-Ook Park,"A miniature UWB planar monopole antenna with 5-GHz band-rejection filter and the time-domain characteristics", IEEE transactions on antennas and propagation,Vol.54,No.5,May 2006. [10] Amin Aboosh and Marek Bialkowski," Design of UWB antenna with parasitic elements for multiband rejection", IEEE International conference on computer and communication technology (ICCCT), 2008. [11] Jyoti R. Panda and Rakhesh S. Kshetrimayum, "A planar microstrip-line fed elliptical UWB 5.2GHZ/5.8GHz notch antenna with U-shaped slot", IEEE International conference on computer and communication technology (ICCCT), 2010. [12] M. Akbari, M. Koohestani, Ch. Ghobadi, J. Nourinia," A new compact planar UWB monopole antenna ", Wiley Periodicals, Inc., 2011. [13] S.Tu, Y.C.Jiao, Y.Song, and X.Z.Wang," A novel dual band-notched antenna with tapered slot for UWB applications", Progress in Electromagnetics Research Letters, Vol. 10, 49-57, 2009.https://t.ly/M3YkdMSA Google ScholarA new modified compact UWB monopole antenna with WiMAX and WLAN band rejection and Bluetooth applications support is presented. Bluetooth (2.45GHz) support is done by adding a resonance arm to the original antenna modified while WiMAX (3.3-3.7GHz) notch is done by adding an inverted C-Slot into the radiating patch and WLAN (5.15-5.8GHz) notch is done by adding parasitic elements beside the feed line. The modified antenna is successfully fabricated and measured. Details of the antenna design and simulation is modified and done. The modified antenna is a simple and compact in size and easily fed by a 50-ohm microstrip line and implemented on FR4 substrate with a thickness h=1.5mm and εr= 4.5. Simulation and measurements agree that the modified antenna has a near omni-directional radiation pattern, appropriate gain characteristics within the UWB frequency range and good characteristics at the specified notchesenNotch bandMonopole antennaUltra wide band (UWB)Article