volume | PIER Journals

Abstract

This study proposes a differential-fed microstrip antenna, which is characterized with an ultra-wideband of 120% (3-12 GHz), improved radiation patterns, stable gains, and compact size. Two symmetrical trapezoid shaped slots and four triangle-cut corners on the ground are used to improve the impedance matching over the UWB frequency band. To clarify the improved radiation characteristics, the simulated radiation patterns of the proposed antenna are compared with the conventional single-ended feed UWB antennas. The measured results show that, in the entire frequency band, the designed antenna exhibits a stable radiation patterns and the gain variation is less than 2 dB. Furthermore, the polarization purity are increased compared with the conventional ones, especially in the high frequency band.

1. Federal Communication's Commission, Washington, DC, "Revision of part 15 of the commission's rules regarding ultra-wideband transmission systems, First note and order,", ET-Docket 98-153, 2002.
doi:10.1109/TAP.2005.858598 Google Scholar

2. Liang, J. X., C. C. Chiau, X. D. Chen, and C. G. Parini, "Study of a printed circular disc monopole antenna for UWB systems," IEEE Trans. Antennas Propag., Vol. 53, No. 11, 3500-3504, 2005.
doi:10.1109/TAP.2006.884307 Google Scholar

3. Lin, Y. C. and K. J. Hung, "Compact ultrawideband rectangular aperture antenna and band-notched designs," IEEE Trans. Antennas Propag., Vol. 54, No. 11, 3075-3081, 2006.
doi:10.1109/LAWP.2010.2041629 Google Scholar

4. Sim, C.-Y.-D., W. T. Chung, and C. H. Lee, "Compact slot antenna for UWB applications," IEEE Antennas Wireless Propag. Lett., Vol. 9, 63-66, 2010.
doi:10.1109/TAP.2012.2189719 Google Scholar

5. Li, D. T. and J. F. Mao, "A koch-like sided fractal bow-tie dipole antenna," IEEE Trans. Antennas Propag., Vol. 60, No. 5, 2242-2251, 2012.
doi:10.1109/TAP.2011.2167899 Google Scholar

6. Huang, X. D., C. H. Cheng, and L. Zhu, "An ultrawideband (UWB) slotline antenna under multiple-mode resonance," IEEE Trans. Antennas Propag., Vol. 60, No. 1, 385-389, 2012.
doi:10.2528/PIERC12103109 Google Scholar

7. Sayidmarie, K. H. and Y. A. Fadhel, "A planar self-complementary bow-tie antenna for UWB applications," Progress In Electromagnetics Research C, Vol. 35, 253-267, 2013.
doi:10.1109/LAWP.2012.2205658 Google Scholar

8. Fereidoony, F., S. Chamaani, and S. A. Mirtaheri, "Systematic design of UWB monopole antennas with stable omnidirectional radiation pattern," IEEE Antennas Wireless Propag. Lett., Vol. 11, 752-755, 2012.
doi:10.2528/PIERC13121709 Google Scholar

9. Touhami, N. A., Y. Yahyaoui, A. Zakriti, K. Bargach, M. Boussouis, M. Lamsalli, and A. Tribak, "A compact CPW-Fed planar pentagon antenna for UWB applications," Progress In Electromagnetics Research C, Vol. 46, 153-161, 2014.
doi:10.1109/LAWP.2011.2141106 Google Scholar

10. Fereidoony, F., S. Chamaani, and S. A. Mirtaheri, "UWB monopole antenna with stable radiation pattern and low transient distortion," IEEE Antennas Wireless Propag. Lett., Vol. 10, 302-305, 2011.
doi:10.1109/TAP.2007.908847 Google Scholar

11. Qu, S., J. Li, J. Chen, and Q. Xue, "Ultra wideband strip-loaded circular slot antenna with improved radiation patterns," IEEE Trans. Antennas Propag., Vol. 55, No. 11, 3348-3353, 2007.
doi:10.1109/TAP.2009.2028702 Google Scholar

12. Sim, C., C.-C. Chang, and J.-S. Row, "Dual-feed dual-polarized patch antenna with low cross polarization and high isolation," IEEE Trans. Antennas Propag., Vol. 57, No. 10, 3321-3324, 2009.
doi:10.1109/TAP.2006.872597 Google Scholar

13. Zhang, Y. P. and J. J. Wang, "Theory and analysis of differentially-driven microstrip antennas," IEEE Trans. Antennas Propag., Vol. 54, No. 4, 1092-1099, 2006.
doi:10.1109/LMWC.2012.2212240 Google Scholar

14. Tong, Z., A. Stelzer, and W. Menzel, "Improved expressions for calculating the impedance of differential feed rectangular microstrip patch antennas," IEEE Microw. Wireless Compon. Lett., Vol. 22, No. 9, 441-443, 2012.
doi:10.1109/TAP.2010.2041146 Google Scholar

15. Han, L. P., W. M. Zhang, X. W. Chen, G. R. Han, and R. B. Ma, "Design of compact differential dual-frequency antenna with stacked patches," IEEE Trans. Antennas Propag., Vol. 58, No. 4, 1387-1392, 2010.
doi:10.1109/LMWC.2007.892979 Google Scholar

16. Bialkowski, M. E. and A. M. Abbosh, "Design of a compact UWB out-of-phase power divider," IEEE Microw. Wireless Compon. Lett., Vol. 17, No. 4, 289-291, 2007. Google Scholar

Dr. Jun Hui Wang

Professor Ying-Zeng Yin