volume | PIER Journals

Abstract

In this paper, a novel bandwidth-enhanced ultra-wideband (UWB) tapered slot antenna, with Y-shaped corrugated edges, is proposed. In the double-slot structure, the two slots are separated by a V-shaped metal surface with straight edges, which is beneficial for improving the directivity of the antenna. Meanwhile, an exponential Y-shaped corrugated edge is designed. This novel corrugated edge not only can improve the impedance bandwidth of the antenna by extending the path of the current, but also can enhance the directivity by concentrating the energy near the tapered slot. The proposed antenna provides 167% fractional bandwidth from 2.5 GHz to 28 GHz. The gain of the antenna is more than 10 dB from 3.5 GHz to 25 GHz and more than 8 dB in the whole operating band.

1. Abedian, M., S. K. A. Rahim, S. Danesh, S. Hakimi, and L. Y. Cheong, "Novel design of compact UWB dielectric resonator antenna with dual-band-rejection characteristics for WiMAX/WLAN bands," IEEE Antennas and Wireless Propagation Letters, Vol. 14, 245-248, 2015.
doi:10.1109/LAWP.2014.2360828 Google Scholar

2. Pandey, G. K. and M. K. Meshram, "A printed high gain UWB Vivaldi antenna design using tapered corrugation and grating elements," International Journal of RF and Microwave Computer-Aided ngineering, Vol. 25, No. 7, 610-618, 2015.
doi:10.1002/mmce.20899 Google Scholar

3. Islam, M. T., M. N. Shakib, and N. Misran, "Design analysis of high gain wideband L-probe fed microstrip patch antenna," Progress In Electromagnetics Research, Vol. 95, 397-407, 2009.
doi:10.2528/PIER09080204 Google Scholar

4. Hines, J. N., V. H. Rumsey, and C. H. Walter, "Traveling-wave slot antennas," Proc. I.R.E, Vol. 41, 1624-2631, 1953.
doi:10.1109/JRPROC.1953.274190 Google Scholar

5. Zhang, F., G. Y. Fang, Y. C. Ji, et al. "A novel compact double exponentially tapered slot antenna (DETSA) for GPR applications," IEEE Antennas and Wireless Propagation Letters, Vol. 10, 195-198, 2011.
doi:10.1109/LAWP.2011.2123868 Google Scholar

6. Gorai, A., A. Karmakar, M. Pal, and R. Ghatak, "A super wideband Chebyshev tapered antipodal Vivaldi antenna," AEU --- International Journal of Electronics and Communications, Vol. 69, No. 9, 1328-1333, 2015.
doi:10.1016/j.aeue.2015.05.017 Google Scholar

7. Khalichi, B., S. Nikmehr, and A. Pourziad, "Development of novel wideband H-plane horn antennas by employing asymmetrical slots based on SIW technology," AEU --- International Journal of Electronics and Communications, Vol. 69, No. 9, 1374-1380, 2015.
doi:10.1016/j.aeue.2015.06.004 Google Scholar

8. Oraizi, H. and S. Jam, "Optimum design of tapered slot antenna profile," IEEE Trans. Antennas Propag., Vol. 51, No. 8, 1987-1995, Aug. 2003.
doi:10.1109/TAP.2003.811090 Google Scholar

9. Oktafiani, F., Y. S. Amrullah, Y. P. Saputera, Y. Wahyu, and Y. N. Wijayanto, "Analysis of corrugated edge variations on balanced antipodal Vivaldi antennas," 2015 International Conference on Radar, Antenna, Microwave, Electronics and Telecommunications (ICRAMET), 1-5, 2015. Google Scholar

10. Madannezhad, A., H. Ameri, S. Sadeghi, and R. Faraji-Dana, "A miniaturized Vivaldi antenna with modified feeding structure for UWB applications," 2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM), 1-3, 2016. Google Scholar

11. Nakajima, H., T. Kosugi, and T. Enoki, "Hyperbolic tangent tapered slot antenna," IET Electronics Letters, Vol. 46, No. 21, 31-32, 2010.
doi:10.1049/el.2010.2383 Google Scholar

12. Walter, E., L. Ortiz-Balbuena, A. Ghadiri, and K. Moez, "A 324-element Vivaldi antenna array for radio astronomy instrumentation," IEEE Trans. Antennas Propag., Vol. 61, No. 1, 241-249, 2012. Google Scholar

13. Lim, T. G., H. N. Ang, I. D. Robertson, and B. L. Weiss, "Integrated millimeter-wave tapered slot antenna using conductor strip gratings," IET Microw. Antennas Propag., Vol. 4, No. 9, 1216-1223, 2010.
doi:10.1049/iet-map.2008.0121 Google Scholar

14. Ellis, T. J. and G. M. Rebeiz, "MM-wave tapered slot antennas on micromachined photonic band gap dielectrics," IEEE MTT-S Int. Microwave Symp. Dig., 1157-1160, San Francisco, CA, 1996. Google Scholar

15. Wang, Y.-W., G.-M. Wang, and B.-F. Zong, "Directivity improvement of Vivaldi antenna using double-slot structure," IEEE Antennas and Wireless Propagation Letters, Vol. 12, No. 18, 1380-1383, 2013.
doi:10.1109/LAWP.2013.2285182 Google Scholar

16. Kumar, P., Z. Akhter, A. Kr. Jha, and M. Jaleel Akhtar, "Directivity enhancement of double slot Vivaldi antenna using anisotropic zero-index metamaterials," IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2333-2334, 2015. Google Scholar

17. Shuppert, B., "Microstrip/Slotline transitions: Modeling and experimental investigation," IEEE Transactions on Microwave Theory and Techniques, Vol. 36, No. 8, 1272-1282, 1988.
doi:10.1109/22.3669 Google Scholar

Dr. Yaqiao Liu

Dr. Jian-Gang Liang

Dr. Ya-Wei Wang