Vol. 52
Latest Volume
All Volumes
PIERB 109 [2024] PIERB 108 [2024] PIERB 107 [2024] PIERB 106 [2024] PIERB 105 [2024] PIERB 104 [2024] PIERB 103 [2023] PIERB 102 [2023] PIERB 101 [2023] PIERB 100 [2023] PIERB 99 [2023] PIERB 98 [2023] PIERB 97 [2022] PIERB 96 [2022] PIERB 95 [2022] PIERB 94 [2021] PIERB 93 [2021] PIERB 92 [2021] PIERB 91 [2021] PIERB 90 [2021] PIERB 89 [2020] PIERB 88 [2020] PIERB 87 [2020] PIERB 86 [2020] PIERB 85 [2019] PIERB 84 [2019] PIERB 83 [2019] PIERB 82 [2018] PIERB 81 [2018] PIERB 80 [2018] PIERB 79 [2017] PIERB 78 [2017] PIERB 77 [2017] PIERB 76 [2017] PIERB 75 [2017] PIERB 74 [2017] PIERB 73 [2017] PIERB 72 [2017] PIERB 71 [2016] PIERB 70 [2016] PIERB 69 [2016] PIERB 68 [2016] PIERB 67 [2016] PIERB 66 [2016] PIERB 65 [2016] PIERB 64 [2015] PIERB 63 [2015] PIERB 62 [2015] PIERB 61 [2014] PIERB 60 [2014] PIERB 59 [2014] PIERB 58 [2014] PIERB 57 [2014] PIERB 56 [2013] PIERB 55 [2013] PIERB 54 [2013] PIERB 53 [2013] PIERB 52 [2013] PIERB 51 [2013] PIERB 50 [2013] PIERB 49 [2013] PIERB 48 [2013] PIERB 47 [2013] PIERB 46 [2013] PIERB 45 [2012] PIERB 44 [2012] PIERB 43 [2012] PIERB 42 [2012] PIERB 41 [2012] PIERB 40 [2012] PIERB 39 [2012] PIERB 38 [2012] PIERB 37 [2012] PIERB 36 [2012] PIERB 35 [2011] PIERB 34 [2011] PIERB 33 [2011] PIERB 32 [2011] PIERB 31 [2011] PIERB 30 [2011] PIERB 29 [2011] PIERB 28 [2011] PIERB 27 [2011] PIERB 26 [2010] PIERB 25 [2010] PIERB 24 [2010] PIERB 23 [2010] PIERB 22 [2010] PIERB 21 [2010] PIERB 20 [2010] PIERB 19 [2010] PIERB 18 [2009] PIERB 17 [2009] PIERB 16 [2009] PIERB 15 [2009] PIERB 14 [2009] PIERB 13 [2009] PIERB 12 [2009] PIERB 11 [2009] PIERB 10 [2008] PIERB 9 [2008] PIERB 8 [2008] PIERB 7 [2008] PIERB 6 [2008] PIERB 5 [2008] PIERB 4 [2008] PIERB 3 [2008] PIERB 2 [2008] PIERB 1 [2008]
2013-06-30
An UWB Fractal Antenna with Defected Ground Structure and Swastika Shape Electromagnetic Band Gap
By
Progress In Electromagnetics Research B, Vol. 52, 383-403, 2013
Abstract
In this paper, an ultra wideband antenna employing a defected ground structure is presented. The radiating element is a circular patch on which a fractal based geometry is inscribed in the form of slots and excited by a tapered feed-line for impedance matching. The antenna has an impedance bandwidth of 8.2 GHz (117% at centre frequency of 7 GHz) and a peak gain around 6 dB. To improve the impedance bandwidth and gain, a Swastika shape Electromagnetic band gap (EBG) structure is proposed. The unit cell of the proposed EBG has a compact size of 3 mm × 3 mm and is obtained by introducing discontinuities in the outer ring of the Cross-Hair type EBG. The stop band (-20 dB) achieved with this EBG is 3.6 GHz (7.5 GHz-11.1 GHz) which is 1.6 GHz more than that achieved by a standard mushroom-type EBG of the same size and same number of elements. After application of the proposed EBG, there is an improvement of 12% in the impedance bandwidth while the peak gain increases by about 2-3 dB. The radiation of the antenna shows a dumb-bell shaped pattern in the E-plane and Omni-directional pattern in the H-plane. All the measured results are in good agreement with simulated results.
Citation
Nagendra Kushwaha, and Raj Kumar, "An UWB Fractal Antenna with Defected Ground Structure and Swastika Shape Electromagnetic Band Gap," Progress In Electromagnetics Research B, Vol. 52, 383-403, 2013.
doi:10.2528/PIERB13051509
References

1. Sadat, S., M. Fardis, F. G. Geran, and G. R. Dadashzadeh, "A compact microstrip square-ring slot antenna for UWB applications," Progress In Electromagnetics Research, Vol. 67, 173-179, 2007.
doi:10.2528/PIER06082901

2. Azim, R., M. T. Islam, and N. Misran, "Compact tapered-shape slot antenna for UWB applications," IEEE Antennas and Wireless Propagation Letters, Vol. 10, 1190-1193, 2011.
doi:10.1109/LAWP.2011.2172181

3. Rama Krishna, R. V. S. and K. Raj, "Design of temple shape slot antenna for ultra wideband applications," Progress In Electromagnetics Research B , Vol. 47, 405-421, 2013.

4. Chen, H.-D., "Broadband CPW-fed square slot antennas with a widened tuning stub," IEEE Transactions on Antennas and Propagation , Vol. 51, No. 8, 1982-1986, 2003.
doi:10.1109/TAP.2003.814747

5. Dastranj, A., A. Imani, and M. Naser-Moghaddasi, "Printed wide-slot antenna for wideband applications," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 10, 3097-3102, Oct. 2008.
doi:10.1109/TAP.2008.929459

6. Fallahi, R., A. A. Kalteh, and M. G. Roozbahani, "A novel UWB elliptical slot antenna with band-notched characteristics," Progress In Electromagnetics Research, Vol. 82, 127-136, 2008.
doi:10.2528/PIER08022603

7. Bahl, I. J. and P. Bhartia, Microstrip Antennas, Artech House, 1980.

8. Kumar, G. and K. P. Ray, Broadband Microstrip Antennas, Artech House, 2003.

9. Balanis, C. A., Antenna Theory Analysis and Design, Wiley Publication, 2005.

10. Garg, R., P. Bhartia, I. J. Bahl, and A. Ittipiboon, Microstrip Antenna Design Handbook, Artech House, 2001.

11. Sievenpiper, D., "High-impedance electromagnetic surfaces," Ph.D. Dissertation, Department of Electrical Engineering, University of California at Los Angeles, 1999.

12. Lee, Y., J. Yeo, K. Ko, Y. Lee, W. Park, and R. Mittra, "A novel design technique for control of defect frequencies of an electromagnetic band gap (EBG) cover for dualband directivity enhancement," Microwave and Optical Technology Letters , Vol. 42, No. 1, 25-31, Jul. 2004.
doi:10.1002/mop.20196

13. Pirhadi, A., F. Keshmiri, M. Hakkak, and M. Tayarani, "Analysis and design of dual band high directive EBG resonator antenna using square loop FSS as superstrate layer," Progress In magnetics Research , Vol. 70, 1-20, 2007.

14. Alam, M. S., M. T. Islam, and N. Misran, "A novel compact split ring slotted electromagnetic bandgap structure for microstrip patch antenna performance enhancement," Progress In Electromagnetics Research , Vol. 130, 389-409, 2012.

15. Qu, D., L. Shafai, and A. Foroozesh, "Improving microstrip patch antenna performance using EBG substrates," IEE Proceedings --- Microwaves, Antennas and Propagation, Vol. 153, No. 6, 558-563, Dec. 2006.
doi:10.1049/ip-map:20060015

16. Sievenpiper, D., L. Zhang, R. F. Jimenez Broas, N. G. Alex-opoulos, and E. Yablonovitch, "High-impedance electromagnetic surfaces with a forbidden frequency band," IEEE Trans. on Microwave Theory and Techn., Vol. 47, 2059-2074, Nov. 1999.

17. Gupta, R. K. and J. Mukherjee, "Effect of superstrate material on a high-gain antenna using array of parasitic patches," Microwave and Optical Technology Letters , Vol. 52, No. 1, Jan. 2010.

18. Xu, F., Z.-X. Wang, X. Chen, and X.-A. Wang, "Dual band-notched UWB antenna based on spiral electromagnetic-bandgap structure," Progress In Electromagnetics Research B, Vol. 39, 393-409, 2012.

19. Yazdi, M. and N. Komjani, "Design of a band-notched UWB monopole antenna by means of an EBG structure," IEEE Antennas and Wireless Propagation Letters, Vol. 10, 170-173, 2011.

20. Weily , A. R., K. P. Esselle, and B. C. Sanders, "Dual resonator 1-D EBG antenna with slot array feed for improved radiation bandwidth," IET Microw. Antennas Propag., Vol. 1, 198-203, 2007.

21. Gujral, M., J. L.-W. Li, T. Yuan, and C.-W. Qiu, "Bandwidth improvement of microstrip antenna array using dummy EBG pattern on feedline," Progress In Electromagnetic Research , Vol. 127, 79-92, 2012.