Conformal Band-Notch UWB Monopole Antenna on Finite Cylindrical Substrates


  • E. S. Ahmed Department of Electrical Engineering, University of Technology, Iraq


A microstrip-fed new UWB monopole antenna with a band-notch characteristic mounted on the finite cylindrical surface is presented. The proposed antenna consists of a rectangular metal radiation patch fed by a 50 ohm microstrip line and a rectangular ground plane. To achieve ultra-wideband, three modifications are introduced. The first one is to blend the upper and lower corners of the radiating plates. The second one is to remove a circular section from the radiating metal. The third one is to blend the upper corners of the ground plane. The antenna is designed on a substrate with dielectric constant εr=3 and 1.6 mm height. The proposed antenna is conformed on finite cylindrical substrates of radiuses 4, 5 and 6 cm. The cylindrical structures were simulated through CST microwave studio finite element package. The simulation results, obtained via CST package on the return losses, VSWR and radiation pattern of the antenna are presented. For both planar and conformal antennas, results show that the impedance bandwidth of the designed antenna is from 2-18 GHz with a return loss less than -10 dB (VSWR<2) and a band rejection of 5-6 GHz for wireless LAN (WLAN), that includes the band 5.15-5.825 GHz limited by IEEE 802.11.a and HIPERLAN/2 with return loss greater than -10dB. The proposed simple shaped conformal antenna provides a good radiation pattern and  gain between 3.84 and 5.96 dBi over the entire frequency band excluding the rejected band.


Conformal microstrip antennas, ultra-wideband (UWB), band-notched, cylindrical substrate, monopole antenna


Download data is not yet available.


I. Oppermann, M. Hamalainen, J. Iinatti (eds), UWB Theory And Applications, Chichester, U.K., Wiley, 2004 DOI:

Federal Communications Commission, First Report and Order in the Matter of Revision of Part 15 of the commission’s Rules Regarding Ultra-Wideband Transmission Systems, ET Docket 98-153, FCC 02-48, Apr. 22, 2002

K. H. Kim, S. O. Park, “Analysis of the small band-rejected antenna with the parasitic strip for UWB”, IEEE Transactions on Antennas and Propagation, Vol. 54, No. 6, pp. 1688-1692, 2006 DOI:

S. W. Su, K. L. Wong, C. L. Tang, “Band-notched ultra-wideband planar monopole antenna”, Microwave and Optical Technology Letters, Vol. 44, No. 3, pp. 217-219, 2005 DOI:

H. K. Yoon, H. R. Kim, K. H. Chang, Y. J. Yoon, , Y. H. Kim, “A study on the UWB antenna with band rejection characteristic”, IEEE Antennas and Propagation Society International Symposium, Vol. 2, pp. 1784-1787, 2004

M. C. Seardelletti, N. Dib, T. Weller, J. Culver, B. King, “Coplanar waveguide-fed slot antennas on cylindrical substrates”, International Journal of Electronics and Communications, Vol. 59, pp. 25-30, 2005 DOI:

M. Pirai, H. R. Hassani, “L-probe fed circular polarized wideband planar patch antenna on cylindrical structure”, Progress In Electromagnetics Research C, Vol. 3, pp.161-167, 2008 DOI:

P. Kabacik, P. Opalka, P. Hornik, “TTC patch antennas made in a conformal form with small radius”, EuCAP 2006, First European Conference on Antennas and Propagation, pp. 1-6, Nice, France, 2006 DOI:

F. Yu, C. Wang, “A CPW-fed novel planar ultra-wideband antenna with a band-notch characteristic”, Radioengineering, Vol. 18, No. 4, pp. 551-555, 2009

K. Yin, J. Xu, “Compact ultra-wideband monopole antenna with band-stop characteristic”, ICMMT 2008, International Conference on Microwave and Millimeter Wave Technology, Vol. 3, pp. 1174-1176, Nanjing, China, 2008

K. J. Hung, Y. C. Lin, “Open-slot loaded monopole antennas for wlan and uwb applications”, IEEE Antennas and Propagation Society International Symposium, Albuquerque, USA, pp. 4653-4656, 2006

C. Y. Huang, W. C. Hsia, J. S. Kuo, “Planar ultra-wideband antenna with band-notched characteristic”, Microwave and Optical Technology Letters, Vol. 48, No. 1, pp. 99-101, 2006 DOI:

C. Qiu, T. Yuan, Y. Zheng, L. Li, Q. Zhang, “Hybrid shaped band-notched ultra-wideband patch antenna”, ISAP 2007, International Symposium on Antennas and Propagation, pp. 282-285, Niigata, Japan, 2007

N. Yuan, T. S. Yeo, X. C. Nie, Y. B. Gan, L. W. Li, “Analysis of probe-fed conformal microstrip antennas on finite grounded substrate”, IEEE Transactions on Antennas and Propagation, Vol. 54, No. 2, pp. 554-563, 2006 DOI:


How to Cite

E. S. Ahmed, “Conformal Band-Notch UWB Monopole Antenna on Finite Cylindrical Substrates”, Eng. Technol. Appl. Sci. Res., vol. 3, no. 3, pp. 440–445, Jun. 2013.


Abstract Views: 482
PDF Downloads: 174

Metrics Information
Bookmark and Share