volume | PIER Journals

Abstract

In this paper, a stage wise realization of compact Bluetooth - UWB dual-band diversity antenna with WiMAX and WLAN band-notch characteristics is presented. The proposed structure consists of two co-planar semicircular dual band-notch monopole antennas, mounted with planar spiral. Individual antenna configuration provides an impedance bandwidth (VSWR < 2) for dual-band i.e. both Bluetooth and UWB bands. For dual band-notch characteristic, two sets of spirals are capacitively coupled with the feed line of antenna. This configuration provides band-notch (VSWR > 2) for WiMAX i.e. (3.3-3.6 GHz) and WLAN (5.13-5.85 GHz) bands. For enhancing reception capabilities of the proposed structure, twin coplanar antennas are used to fulfill diversity requirements. However, due to coplanar and close proximity to each other, there is high possibility of mutual coupling between coplanar antenna elements. To address the mutual coupling between elements, cross-strip variable-sized frequency selective structures are used. Antenna diversity of the proposed structure is validated by measuring radiation pattern characteristic and envelop co-relation factor (ECC). A good agreement between measured and simulated responses ensures that the proposed diversity antenna can be used for interference free Bluetooth/UWB dual-band applications.

1. FCC "Federal Communication Commission revision of part 15 of commission's rules regarding ultra |--- Wideband transmission systems," First Report and Order FCC, Vol. 48, 2002.

2. Wu, Z. H., F. Wei, X.-W. Shi, and W.-T. Li, "A compact quad band-notched UWB Monopole antenna loaded one lateral L-shaped slot," Progress In Electromagnetics Research, Vol. 139, 303-315, 2013.

3. Azim, R. and M. T. Islam, "Compact planar UWB antenna with band notch characteristics for WLAN and DSRC," Progress In Electromagnetics Research , Vol. 133, 391-406, 2013.

4. Li, C.-M. and L.-H. Ye, "Improved dual band-notched UWB slot antenna with controllable notched bandwidth," Progress In Electromagnetics Research, Vol. 115, 477-493, 2011.

5. Xu, J., D. Shen, X. Zang, and K. Wu, "A compact disc UWB antenna with quintuple band rejections," IEEE Antenna and Wireless Propagation Letters, Vol. 11, 1517-1520, 2012.
doi:10.1109/LAWP.2012.2237010

6. Nguyen, D. T., D. H. Lee, and H. C. Park, "Very compact triple band-notch UWB antenna with quarter wavelength slots," IEEE Antenna and Wireless Propagation Letters, Vol. 11, 411-415, 2012.
doi:10.1109/LAWP.2012.2192900

7. Liu, X. L., Y.-Z. Yin, P. A. Liu, J. H. Wang, and B. Xu, "A CPW-fed dual band-notched UWB antenna with a pair of bended dual-L-shape parasitic branches," Progress In Electromagnetics Research, Vol. 136, 623-634, 2013.

8. Lin, C. C., P. Jin, and R. W. Ziolkowski, "Single dual and tri-band notch UWB antenna using capacitively loaded loop resonators," IEEE Transactions on Antennas and Propagation, Vol. 60, 102-110, 2012.
doi:10.1109/TAP.2011.2167947

19. Islam, M. T., R. Azim, and A. T. Mobashsher, "Triple band-notched planar UWB antenna using parasitic strips," Progress In Electromagnetics Research, Vol. 129, 161-179, 2012.

10. Xiong, L. and P. Gao, "Compact dual-band printed diversity an tenna for WiMAX/WLAN applications," Progress In Electromagnetics Research C, Vol. 32, 151-165, 2012.

11. Mao, C.-X., Q.-X. Chu, Y.-T. Wu, and Y.-H. Qian, "Design and investigation of closely-packed diversity UWB slot-antenna with high isolation," Progress In Electromagnetics Research C, Vol. 41, 13-25, 2013.

12. Zhang, S., J. Ying, and S. He, "UWB MIMO/diversity antenna ith a tree like structure to enhance wideband isolation," IEEE Antenna and Wireless Propagation Letters, Vol. 8, 1279-1283, 2009.
doi:10.1109/LAWP.2009.2037027

13. Terence, S. P. and Z. H. Chen, "An UWB diversity antenna," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 6, 1597-1606, 2012.

14. Gallo, M., et al. "A broad band pattern diversity annular slot antenna," IEEE Transactions on Antennas and Propagation, Vol. 60, No. 3, 1596-1601, 2012.
doi:10.1109/TAP.2011.2180314

15. Zuo, S., Y.-Z. Yin, W.-J. Wu, Z.-Y. Zhang, and J. Ma, "Investigations of reduction of mutual coupling between two planar monopoles using two 4 slots," Progress In Electromagnetics Research Letters, Vol. 19, 9-18, 2010.

16. Islam, M. T. and M. S. Alam, "Compact EBG structure for alleviating mutual coupling between patch antenna array elements," Progress In Electromagnetics Research, Vol. 137, 425-438, 2013.

17. Mishra, S. K. and et al, "A compact dual band Fork shaped UWB antenna for Bluetooth and UWB applications," IEEE Antenna and Wireless Propagation Letters, Vol. 10, 627-630, 2011.
doi:10.1109/LAWP.2011.2159572

18. Li, W. T., Y. Q. Hei, W. Fang, and X. W. Shi, "Planar antenna for 3G/Bluetooth/WiMAX applications with dual band-notch characteristic," IEEE Antenna and Wireless Propagation Letters, Vol. 11, 61-65, 2012.

19. Yildirim, B. S., B. A. Cetiner, G. Roqueta, and L. Jofre, "Integrated bluetooth and UWB antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 8, 149-152, 2009.
doi:10.1109/LAWP.2009.2013371

20. Yildirim, B. S., "Low profile and plannar antenna for blur tooth/WLAN and UWB application," IEEE Antennas and Wireless Propagation Letters, Vol. 5, 438-441, 2006.
doi:10.1109/LAWP.2006.883080

21. Kumar, G. and K. P. Ray, Broad-band Microstrip Antenna,, Arctech House, 2003..

22. Bilotti, F., A. Toscano, and L. Vegni, "Design of spiral and multiple SRR for the realization of miniaturized metamaterial sample," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 6, 2258-2268, 2012.

23. Blanch, S., J. Romeu, and I. Corbella, "Exact representation of antenna system diversity performance from input parameter description," Electronic Letters, Vol. 39, No. 9, 705-707, 2003.
doi:10.1049/el:20030495

24. See, C. H., et al. "Compact MIMO/diversity antenna for portable mobile UWB applications," IET Microwave and Antenna Propagation Letters, Vol. 7, No. 6, 444-451, 2013.
doi:10.1049/iet-map.2012.0574

Dr. Gopi Shrikanth Reddy

Mr. Ashish Chittora

Mrs. Shilpa U. Kharche

Dr. Sanjeev Kumar Mishra

Prof. Jayanta Mukherjee