Advertisement

Wireless Personal Communications

, Volume 91, Issue 1, pp 277–291 | Cite as

A Printed Semi-Circular Disc UWB MIMO/Diversity Antenna with Cross Shape Slot Stub

  • Raj KumarEmail author
  • Neha Pazare
Article
  • 250 Downloads

Abstract

The paper presents a combination of microstrip and CPW fed semicircular patch antennas for UWB polarization diversity applications. The overall size of the diversity antenna is 40 mm × 40 mm × 1.6 mm. Both the patches are placed in an orthogonal arrangement to provide polarization diversity and to improve the isolation. The measured impedance bandwidth is from 3.0 to 10.6 GHz for the CPW fed antenna while it is from 2.7 to 11.0 GHz for the microstrip fed antenna. An extra operating band is obtained at around 1.2 GHz (measured) due to the common ground plane. The measured isolation is between 20 and 25 dB over most of the band. A detail parametric study is done to analyze the effect of the different parameters on the return losses of both the ports and the isolation between them. The radiation patterns are measured and found to be omnidirectional in the H-plane and dumb-bell shape in the E-plane. The peak gain is between 3 and 5 dBi over most of the band while the radiation efficiency is more than 80 %. Diversity parameters such as envelope correlation coefficient and diversity gain are also calculated and found to be within acceptable limits. The antennas will be useful for diversity applications in the ultra wideband region and for GSM/GPS applications in the first operating band.

Keywords

UWB antenna Diversity antenna Microstrip feed CPW feed Patch antenna 

References

  1. 1.
    Gautam, A., Yadav, S., & Kanaujia, B. (2013). A CPW-fed compact UWB microstrip antenna. IEEE Antennas and Wireless Propagation Letters, 12, 151–154.CrossRefGoogle Scholar
  2. 2.
    Liu, H., Ku, C., & Yang, C. (2010). Novel CPW-fed planar monopole antenna for WiMAX/WLAN applications. IEEE Antennas and Wireless Propagation Letters, 9, 240–243.CrossRefGoogle Scholar
  3. 3.
    Kim, J., & Jee, Y. (2007). Design of ultrawideband coplanar waveguide-fed LI-shape planar monopole antennas. IEEE Antennas and Wireless Propagation Letters, 6, 383–387.CrossRefGoogle Scholar
  4. 4.
    Mohammadian, N., Azarmanes, M.-N., & Soltani, S. (2009). Compact ultra-wideband slot antenna fed by coplanar waveguide and microstrip line with triple-band-notched frequency function. IET Microwaves, Antennas & Propagation, 4, 1811–1817.CrossRefGoogle Scholar
  5. 5.
    Foudazi, A., Hassani, H., & Nezhad, S. (2012). Small UWB planar monopole antenna with added GPS/GSM/WLAN bands. IEEE Antennas and Wireless Propagation Letters, 60, 2987–2992.CrossRefGoogle Scholar
  6. 6.
    Rajagopalan, A., Gupta, G., Konanur, S., Hughes, B., & Lazzi, G. (2007). Increasing channel capacity of an ultrawideband MIMO system using vector antennas. IEEE Transactions on Antennas and Propagation, 55, 2880–2887.CrossRefGoogle Scholar
  7. 7.
    Adamiuk, G., Zwick, T., & Wiesbeck, W. (2010). Compact, dual-polarized UWB antenna, embedded in a dielectric. IEEE Transactions on Antennas and Propagation, 58(2), 279–286.CrossRefGoogle Scholar
  8. 8.
    Wang, L., & Huang, B. (2012). Design of ultra-wideband MIMO antenna for breast tumor detection. International Journal of Antennas and Propagation, 2012, 1–7.Google Scholar
  9. 9.
    Darvish, M., & Hassani, H. R. (2012). Quad band CPW-fed monopole antenna for MIMO applications. EuCAP 2012 1569522349.Google Scholar
  10. 10.
    Nezhad, S. M. A., & Hassani, H. R. (2010). A novel triband E-shaped printed monopole antenna for MIMO application. IEEE Antennas and Wireless Propagation Letters, 9, 576–579.CrossRefGoogle Scholar
  11. 11.
    Zhang, S., Ying, Z., Xiong, J., & He, S. (2009). Ultrawideband MIMO/diversity antennas with a tree-like structure to enhance wideband isolation. IEEE Antennas and Wireless Propagation Letters, 8, 1279–1282.CrossRefGoogle Scholar
  12. 12.
    Lee, J., Hong, S., & Choi, J. (2010). Design of an ultra-wideband MIMO antenna for PDA applications. Microwave and Optical Technology, 52(10), 2165–2170.CrossRefGoogle Scholar
  13. 13.
    Hong, S., Chung, K., Lee, J., Jung, S., et al. (2008). Design of a diversity antenna with stubs for UWB applications. Microwave and Optical Technology Letters, 50, 1352–1356.CrossRefGoogle Scholar
  14. 14.
    Najam, A., Duroc, Y., & Tedjni, S. (2011). UWB-MIMO antenna with novel stub structure. Progress in Electromagnetics Research C, 19, 245–257.CrossRefGoogle Scholar
  15. 15.
    Jusoh, M., Jamlos, M. F., Kamarudin, M. R., & Malek, F. (2012). A MIMO antenna design challenges for UWB applications. Progress in Electromagnetics Research B, 36, 357–371.CrossRefGoogle Scholar
  16. 16.
    Zhang, S., Ying, Z., Xiong, J., & He, S. (2009). Ultrawideband MIMO/diversity antennas with a tree-like structure to enhance wideband isolation. IEEE Antennas and Wireless Propagation Letters, 8, 1279.CrossRefGoogle Scholar
  17. 17.
    Najam, A., Duroc, Y., & Tedjni, S. (2011). UWB-MIMO antenna with novel stub structure. Progress in Electromagnetics Research C, 19, 245–257.CrossRefGoogle Scholar
  18. 18.
    Votis, C., Tatsis, G., & Kostarakis, P. (2010). Envelope correlation parameter measurements in a MIMO antenna array configuration. International Journal of Communications, Network and System Sciences, 3, 350–354.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.AEARDEPuneIndia
  2. 2.DIAT(DU)Girinagar, PuneIndia

Personalised recommendations