Design and Analysis of Band notched Wide band Metamaterial Integrated U &T shaped patch with strip line antenna for wireless application

Author Name(s): Rani Rudrama Kodali, P. Siddaiah, Dr. M. N. Giri Prasad
Author Email: kodali.rudrama@gmail.com

Abstract

In this paper, we design a metamaterial based antenna for wideband applications. For the design we consider a unit cell of MM by integrating a U shape patch section with T shape patch, Three such unit cells were attached together to form the desired wideband antenna. Here the dielectric substrate used is Rogers RT/duroid 5880™.Initially we analyze the proposed antenna and then we will analyze the effects of proposed cases on the designed wideband MM antenna. The proposed cases for the analysis purpose are, first we consider the ground conditions by analyzing the designed antenna with full ground, half ground and the proposed ground conditions.second by increasing its feeding strip line widthby a change of 0.05cm, 0.1cm and 0.15cm in –X and +X directions at MM side and then for the third case increasing the feeding strip line width at port side in the same manner. The comparative analysis is presented by analyzing the proposed wideband MM antenna for all these for various conditions with the help of return loss (S11) and VSWR curves.

Introduction

Antennas have fundamental importance in wireless communications, with the increase in demand and advance in wireless broad band technologies. The need for antennas with greater bandwidth is high, because of their low cost, simple structure and good wide impedance and pattern bandwidth, the ultra-wideband antennas have become main research topic for several researchers[1-2]. The frequency range from 3.1GHz-10.6GHz are used for commercial UWB applications, however some existing WLAN bands and some satellite services which are working at 8 to 11GHz may cause some intrusion. While working on UWB antennas the main requirement is that it requires convenient impedance matching over large bandwidth, and the miniaturization of the antenna and higher radiation efficiency [3] is required. This UWB technologies have several advantages over the conventional antenna systems, one such advantage is that it does not require any carrier frequency instead the UWB antennas emits timed pulse of electromagnetic energy. Overview of some planar wideband antennas with different configurations is presented in [5]. Here the intrusion between the UWB and already existing systems using some of the frequency bands is one of the key problems in working with the UWB antennas to avoid such interference we must avoid those frequencies from the UWB antenna band this is achieved by using band notch method, some researches on UWB antennas with band notch characteristics is presented in [4,6-9].

Conclusion

The proposed Metamaterial based wideband antenna has been analyzed and it exhibits multi band notch characteristics. The frequency ranges from 5GHz to 7.5GHz always avoided. And the other frequency bands can be notched by varying strip line as presented in the result section. The VSWR curve also exhibits good range around or less than the 2. The unit cell of MM exhibits the electromagnetic resonance which is very much compatible with the frequency bands obtained for the proposed wideband antenna. The proposed antenna has multiband notch characteristics with improved performance.

References

  1. Lin, C.-C. and H.-R. C. Lin, “A 3-12 GHz UWB planar triangular monopole antenna withridged ground-plane,” Progress In Electromagnetic Research, Vol. 83, 307{321, 2008.
  2. Li, X., L. Yang, S.-X. Gong, and Y.-J. Yang, “Ultra-wideband monopole antenna with four-Band-notched characteristics,” Progress In Electromagnetics Research Letters, Vol. 6, 27-34, 2009.
  3. Chen, Z. N., X. H.Wu, H. F. Li, N. Yang, and M. Y. W. Chia, “Considerations for source pulses and antennas in UWB radio systems,” IEEE Trans. Antennas Propag., Vol. 52, 1739{1748,Jul. 2004.
  4. Zhu, S. Gao, A. T. S. Ho, C. H. See,R. A. Abd-Alhameed, J. Li, and J. Xu,” DESIGN AND ANALYSIS OF PLANAR ULTRA-WIDEB-AND ANTENNA WITH DUAL BAND-NOTCHED FUNCTION”, Progress In Electromagnetics Research, Vol. 127, 523-536, 2012.
  5. Chen, Z. N., M. J. Ammann, X. M. Qing, X. H. Wu, T. S. P. See,and A. Cai, \Planar antennas,” IEEE Microw. Mag., Vol. 7, No. 6,63-73, 2006.
  6. Abbosh, A. M., M. E. Bialkowski, J. Mazierska, and M. V. Jacob,“A planar UWB antenna with signal rejection capability in the4-6 GHz band,” IEEE Microw. Wireless Compon. Lett., Vol. 16,No. 5, 278-280, 2006.
  7. Bialkowski, M. E. and A. M. Abbosh, “Design of UWB planarantenna with improved cut-o® at the out of band frequencies,”IEEE Antennas Wireless Propag. Lett., Vol. 7, 408-410, 2008.
  8. Chung, K., J. Kim, and J. Choi, “Wideband microstrip-fedmonopople antenna having frequency band-notch function,” Wireless Compon. Lett., Vol. 15, No. 11, 766-768, 2005.
  9. Lui, W. J., C. H. Cheng, and H. B. Zhu, “Improved frequencynotched ultra-wideband slot antenna using square ring resonator,”IEEE Trans. Antennas Propag., Vol. 55, No. 9, 2445-2450, 2007.
  10. Chang, T. N. and M. C. Wu, “Band-notched design for UWBapplications,” IEEE Antennas Wireless Propag. Lett., Vol. 7, 636-640, 2008.
  11. Abbosh, A. M. and M. E. Bialkowski, “Design of UWB planarband-notched antenna using parasitic elements,” IEEE Trans.Antennas Propag., Vol. 57, No. 3, 796-799, 2009.

886 total views, no views today

Download PDF File

About the author: admin